5 Simple Steps to Having a Healthy Pregnancy

If you’ve decided to have a baby, the most important thing is that you care a lot, so that both you and the baby are healthy in the future. Girls who receive proper care and take the right decisions are highly likely to have healthy babies.

Prenatal Care

If you discover you are pregnant, see a doctor as soon as possible to begin receiving prenatal care (care during pregnancy). The sooner you begin receiving medical care, the better the chances that both you and your baby are healthy in the future.

If you can not afford to visit a doctor or pay for the consultation in a clinic for prenatal care, social service organizations exist that can help. Ask your parents, school counselor or another trusted adult to help you find resources in your community.

During the first consultation, the doctor will make a lot of questions, such as date of your last period. In this way, you can calculate how long have you been pregnant and what date you expect your baby.

Doctors estimate the duration of pregnancy in weeks. The due date is estimated, but the majority of babies born between 38 and 42 weeks after the first day of last menstrual period of women, or between 36 and 38 weeks after conception (when the sperm fertilizes the egg). Only a small percentage of women giving birth at the estimated delivery date.

The pregnancy is divided into three phases, or quarters. The first quarter runs from conception to end of week 13. The second is from week 14 to 26. The third, from week 27 until the end of pregnancy.

The doctor will examine you and perform a pelvic exam. The doctor will also order blood tests, urine tests and tests to check for sexually transmitted diseases (STD by its acronym in English), including an HIV test, an increasingly common condition in adolescents. (Because some STDs can cause serious health problems in newborns, it is important to get appropriate treatment to protect the baby.)

The doctor will explain what are the physical and emotional changes that are likely to experience during pregnancy. We also learn to recognize the symptoms of possible problems (complications) during pregnancy. This is essential, because teenagers are at greater risk of crossing certain complications such as anemia or hypertension, and give birth before the expected date (premature labor).

Your doctor will want to start taking prenatal vitamins containing folic acid, calcium and iron away. Your doctor may prescribe vitamins or can recommend a brand you can buy without a prescription. These minerals and vitamins help to ensure the good health of baby and mother, and avoid certain birth defects.

Ideally, you should visit your doctor once a month during the first 28 weeks of pregnancy. Then you should visit every 2 weeks until week 36 and weekly thereafter until delivery. If you have a disease like diabetes, which requires careful monitoring during pregnancy, it is likely that your doctor wants to see you more often.

During consultations, your doctor will monitor your weight, blood pressure and urine, in addition to measuring your belly to go record the baby’s growth. When the baby’s heartbeat can be heard with a special device, the doctor will listen to every time you visit. It is likely that your doctor will also indicate other tests during pregnancy, such as an ultrasound to make sure the baby is in perfect condition.

Also part of prenatal care to attend classes where women who are expecting a baby learning how to have a healthy pregnancy and delivery, as well as what are the basic care for the newborn. It is likely that these classes are conducted in hospitals, medical centers, schools and universities in your area.

If adults can be difficult to talk to your doctor about your own body, this is even more difficult for adolescents. The role of your doctor is to help you enjoy a healthy pregnancy and have a healthy baby… and it is likely that there is nothing that a pregnant woman has not told. So do not be afraid to ask about everything you need to know.

Always be honest when your doctor will ask questions, even if they are embarrassing. Many of the issues that your doctor wants you to cover could affect the health of your baby. Think of your doctor as someone who is not only a resource but also a friend you can trust to talk about what is happening to you.

What changes can you expect in your body

Pregnancy creates many physical changes. Here are some of the most common:

Growth of breasts

The increase in breast size is one of the first signs of pregnancy and the breasts may continue to grow throughout pregnancy. It is possible to increase several sizes of support during the course of pregnancy.

Skin changes

Do not be surprised if people’s comments that your skin looks “glowing” when you’re pregnant: pregnancy produces an increased blood volume, which can make your cheeks are a little more pink than usual. In addition, hormonal changes increase the secretion of the sebaceous glands, so that your skin may look brighter. For the same reason, acne is also common during pregnancy.

Among other changes that pregnancy hormones generated in the skin are yellowish or brownish spots that appear on the face, which are called melasma, and a dark stripe running from the navel to the pubis, which known as linea nigra.

Also, moles or freckles that you had before pregnancy may increase in size or become darker. Even the areola, the area around the nipple becomes darker. Stretch marks may also occur (thin lines of pink or purple) in the abdomen, breasts or thighs.

Except for the darkening of the areola, which is usually permanent, these skin changes will disappear after delivery.

Mood swings

It is very common to experience mood swings during pregnancy. Some girls may suffer from depression during pregnancy or after childbirth. If you have symptoms of depression such as sadness, changes in sleep patterns, desires to hurt yourself or negative feelings about yourself or your life, ask your doctor for advice about starting your treatment.

Pregnancy Discomforts

Pregnancy can cause some unpleasant side effects. Among such disorders, include the following:

  • nausea and vomiting, especially during the first months of pregnancy;
  • leg swelling;
  • varicose veins in the legs and the area around the vaginal opening;
  • hemorrhoids;
  • heartburn and constipation;
  • back pain;
  • fatigue and
  • sleeping problems.

If you suffer from one or more of these side effects, remember that you are not alone. Ask your doctor for advice on how to handle these common problems.

If you are pregnant and have bleeding or pain, contact your doctor right away, even if you decided to terminate your pregnancy.

What you should avoid

If you smoke, drink alcohol or use drugs during pregnancy, both you and your baby are at risk for serious problems.

Alcohol

At present, doctors believe it is not advisable to drink a drop of alcohol during pregnancy. If you drink alcoholic beverages can damage the developing fetus and the baby is at risk for birth defects and mental problems.

Smoke

Smoking during pregnancy carries some of the following risks: the birth of a dead fetus (when a baby dies inside the womb), low birth weight (which increases the possibility that the baby has health problems), infants infants (babies born before 37 weeks) syndrome and sudden infant death (SIDS for its acronym in English). SIDS is the sudden death for no apparent reason, a baby under one year.

Drugs

Illegal drugs such as cocaine or marijuana during pregnancy may cause abortions, premature births and other health problems. In addition, babies can be born with an addiction to certain drugs.

If you have trouble quitting smoking, drinking alcohol or using drugs, ask your doctor to help you. Consult your doctor before taking any medication during pregnancy. This includes medicines sold over the counter, prepared herbal supplements and vitamins.

Unsafe Sex

Talk to your doctor about sex during pregnancy. If your doctor allows you to have sex during pregnancy, you should use a condom to avoid contracting a sexually transmitted disease (STD in English). Because some STDs can cause blindness, pneumonia or meningitis in the newborn, it is important for you to protect yourself and protect the baby.

How to take care during pregnancy

Feeding

Many young people are concerned by the appearance of your body and fear of weight gain during pregnancy. But this is not the time to cut calories or go on a diet because you are feeding two people. Both you and your baby need certain nutrients for the baby to grow properly. If you eat a variety of healthy foods, drink enough water and you reduce the junk food, high fat, help to both you and the baby are healthy and growing.

Doctors generally recommend adding about 300 calories a day to the diet, so as to provide the baby with adequate nutrition growth. According to the weight you had before becoming pregnant, you should gain between 11 and 15 kilos (25 to 35 pounds) during pregnancy, mostly during the last 6 months. Your doctor will advise you about this depending on your particular situation.

Eat more fiber from -25 to 30 grams daily, and drinking enough water can help prevent common problems such as constipation. Fruits and vegetables and whole grain breads, cereals or whole wheat muffins are good sources of fiber.

It is necessary that you avoid some foods and beverages during pregnancy, such as:

  • some types of fish such as swordfish, canned tuna and other fish that may have a high content of mercury (your doctor can help you decide which fish to eat);
  • foods containing raw eggs, such as mousse or salad type “Caesar”;
  • raw meat, fish or just cooked;
  • processed meats such as sausages or cold cuts;
  • Unpasteurized soft cheeses such as feta, brie, blue or goat, and
  • milk, unpasteurized juice or cider.

It is also desirable to limit the consumption of artificial sweeteners and caffeine and artificial sweeteners.

Exercise

Exercising during pregnancy is good for your health when you have no complications with the pregnancy and choose appropriate activities. Doctors generally recommend low-impact activities such as walking, swimming and yoga. In general, you should avoid contact sports and high impact aerobic activities that pose a higher risk of injury. It is also not recommended to do a job that involves heavy lifting for women during pregnancy. Talk to your doctor if you have questions about what kind of exercises are safe for you and your baby.

Sleep

It is important to get plenty of rest during pregnancy. During the first months of pregnancy, trying to acquire the habit of sleeping on your side. As pregnancy progresses, lying on your side, knees bent, will be the most comfortable position. It will facilitate the functioning of the heart, since the baby’s weight will not exert any pressure on the vein that carries blood from the feet and legs back to the heart.

Some doctors specifically recommend that pregnant girls should sleep on his left side. Because some of the major blood vessels are in the right side of the abdomen, lying on the left side helps keep the uterus puts pressure on them. Ask your doctor what your recommendation. In most cases, the trick is to lie on either side, to reduce pressure on the back.

Throughout the pregnancy, but particularly in the later stages, it is likely that you wake up frequently at night to go to the bathroom. While it is important to drink plenty of water during pregnancy, try to drink more during the day instead of night. Go to the bathroom before bed. As the pregnancy progresses, you might be hard to find a comfortable position in bed. You can try placing pillows around and under the stomach, back or legs to feel more comfortable.

Stress can also affect sleep. Perhaps you’re concerned about the health of the baby, birth, or how it will play this new role of mother. All these feelings are normal, but can produce insomnia. Talk to your doctor if you have trouble sleeping during pregnancy.

Emotional Health

It is common for pregnant adolescents experience a variety of emotions such as fear, anger, guilt, confusion and sadness. Maybe you take some time to adjust to the fact that you are having a baby. It means a huge change and it is natural for pregnant teens wonder if they are ready for the responsibilities involved in becoming mothers.

The feelings of a young often depend on how much support received by the baby’s father, his family (and family of the baby’s father) and his friends. The situation of each youth is different. Depending on your situation, you may need to seek more support for people who are not part of your family. It is important to talk with people who can support you, guide you and help you share and sort out your feelings. Your school counselor or nurse can guide you to find the resources offered to help your community.

In some cases, teenage pregnancies and spontaneous abortions have lost the baby. This can be very sad and difficult to overcome for some, but to others it causes a feeling of relief. It is important to talk about these feelings and receive support from friends and family, if this is not possible, go to counselors or teachers.

The school and the future

Some girls plan to raise her baby by themselves. Sometimes grandparents or other family members help them. Some young people choose to deliver her baby for adoption. These difficult decisions involve a great deal of courage and concern for the baby.

Young women who have completed high school will have greater chances of getting a good job and enjoy a more successful life. As far as possible, you should finish high school now instead of trying to go back to school later. Ask your school counselor or a trusted adult that you provide information about what programs and classes offered in the community for pregnant teens.

Some communities have support groups especially devoted to teen parents. In some schools, no childcare. Perhaps a member of your family or a friend can take the baby while you’re at school.

You can learn more about what happens when you mother if you read books, attend classes or consultations reliable websites on parenting. Your pediatrician, your parents, your family members and other adults can guide you when you’re pregnant and when you become a mother.

EDGE: A Stepping-stone Toward 3G Technologies in Pakistan

ABSTRACT

The business of wireless data is expected to grow in the region of 100-200 % per annum and the mobile communication industry agrees that wireless data services will form the foundation for future business. The enormous success of short messaging in many countries proves that people accept the benefits of non-voice services.

Enhanced Data Rate for Global Evolution (EDGE) is a technology that gives Global Systems for Mobile Communications (GSM) the capacity to handle services for the third generation of mobile telephony. It provides three times the data capacity of General packet Radio Service (GPRS). Using EDGE, operators can handle three times more subscribers than GPRS; triple their data rate per subscriber, or add extra capacity to their voice communications.

This article provides an overview of EDGE technology. In particular, starting from the introduction of this 2.5G technology I describe the core technical aspects and distinct features. I will provide a comparison with GPRS for data services and then a survey of the current state of this technology in Pakistan. I have also covered some benefits for operators and customers.

1. Introduction

The importance of wireless data and multimedia services both for business and end customers are increasing on an unparalleled scale. Enhanced Data Rates for GSM Evolution (EDGE) is a new radio interface solution and is based on an enhanced modulation. EDGE offers GSM network operators an evolution path to mobile data and multimedia services with a three fold increase of data throughput in the existing GSM spectrum. EDGE therefore provides an alternative for operators who do not have a Universal Mobile Telecommunication System (UMTS) license. Moreover it also represents a complement to UMTS for operators intending to first deploy UMTS only in densely populated areas, but who can also use EDGE to provide wide area coverage of future oriented 3G services. In the US market operators have chosen EDGE as the 3G solutions. [8].

We are presently experiencing the Wireless Application Protocol (WAP) as well as the higher   transmission  speeds of High Speed Circuit Switched Data (HSCSD), joined by the convenience of “always on-line” direct Internet connections with GPRS. [1]

EDGE, new radios interface technology with enhanced modulation, increases the HSCSD and GPRS data rates by up to three fold. EDGE modulation is going to increase the data throughput provided by the packet switched service even over 400 kbps per carrier. Similarly, the data rates of circuit switched data can be increased, or existing data rates can be achieved using fewer timeslots, saving capacity. Accordingly, these higher speed data services are referred to as EGPRS (Enhanced GPRS) and ECSD (Enhanced Circuit Switched Data).

EDGE, is a major improvement in GSM phase 2+. As a modification to existing GSM networks, EDGE does not require new network elements. [1]

In the US, for instance, EDGE is part of the IS-136 High Speed concept, which is one of the third generation Radio  Transmission  Technology (RTT) proposals from TR.45. EDGE is eventually going to be standardized which makes possible to achieve a global mobile radio system with many services characteristic to third generation systems.

2. Overview

The increased bit rates of EDGE put requirements on the GSM/GPRS network architecture. Figure. 1 illustrates the GSM/GPRS architecture, the shaded parts of which are discussed in this section. Other nodes and interfaces are not affected at all by EDGE introduction. An apparent bottleneck is the A-bis interface, which today supports up to 16 kb/s per traffic channel. With EDGE, the bit rate per traffic channel will approach 64 kb/s, which makes allocation of multiple A-bis slots to one traffic channel necessary. Alternative asynchronous transfer mode (ATM) or IP-based solutions to this problem can also be discusses.

One important fact is, however, that the 16 kb/s limit will be exceeded already by the introduction of two coding schemes (CS3 and CS4) in GPRS, which have a maximal bit rate per traffic channel of 22.8 kb/s. Consequently, the A-bis limitation problem is being solved outside the EDGE standardization, and it is therefore a GPRS related, not EDGE-related, modification. For GPRS-based packet data services, other nodes and interfaces are already capable of handling higher bit rates, and are thus not affected. For circuit-switched services, the A interface can handle 64 kb/s per user, which is not exceeded by EDGE circuit-switched bearers. [9]

2.1. Impact on GSM Network Planning

An important prerequisite, which to a large extent will determine the success of EDGE in GSM, is that a network operator be able to introduce EDGE gradually. For initial deployment, EDGE-capable transceivers will supplement standard GSM/GPRS transceivers in a subset of the existing cells where EDGE coverage is desired. Hence, an integrated mix of GSM, GPRS, and EDGE users will coexist in the same frequency band. To minimize effort and cost for the network operator, radio network planning (including cell planning, frequency setting of power and other cell parameters) must not require extensive modification.

2.1.1. Coverage Planning

One characteristic of non-transparent radio link protocols that include automatic repeat request (ARQ), is that low radio link quality only results in a lower bit rate for the user. Hence, low SIR for a user does not result in a dropped call, as for speech, but in a temporary decrease of user bit rate. For transparent bearers, which typically offer a constant bit rate, link quality control must be extended to incorporate resource allocation, in the sense that the number of dynamically allocated time slots fits the bit rate and bit error rate (BER) retirements. Transparent bearers, will thus be available in the entire GSM cell, but require fewer time slots in the center of the cell (where 8-PSK coding schemes can be used).

2.1.2. Frequency Planning

Most mature GSM networks of today have an average frequency reuse factor of around 9 (meaning that available frequencies are divided into nine frequency groups). However, there is also a trend toward tighter reuse factors. With the use of frequency hopping, multiple reuse patterns (MRP), and discontinuous  transmission  (DTX), reuse factors as low as 3 become feasible. EDGE supports a variety of reuse patterns. In fact, by its use of link quality control, EDGE can be introduced in an arbitrary frequency plan, and benefit from high SIR closer to the base stations. EDGE can be introduced in an existing GSM frequency plan, and that it also supports future high-capacity solutions based on tighter frequency reuse.

2.1.3. Radio Network Planning

An important prerequisite (and to a large extent, one that will determine the success of Edge) is that network operators should be able to introduce Edge gradually. The initial deployment of Edge-capable transceivers will supplement standard GSM transceivers in a subset of cells where Edge coverage is desired. An integrated mixture of circuit-switched, GPRS and Edge users will thus coexist in the same frequency band. To minimize operator efforts and costs, Edge-related implementation must not require extensive modification of the radio network plan (including cell planning, frequency planning, the setting of power levels and other cell parameters).

2.1.4. Channel Management

After Edge has been introduced, a cell will typically include two types of transceiver: standard GSM transceivers and Edge transceivers. Each physical channel (time slot) in the cell can be viewed as being one of at least four channel types:

1. GSM speech and GSM circuit-switched data (CSD);

2. GPRS packet data;

3. Circuit-switched data, enhanced circuits witched data (ECSD), and GSM speech;

4. Edge packet data (EGPRS), which allows a mix of GPRS and EGPRS users simultaneously.

While standard GSM transceivers only support channel types 1 and 2, Edge transceivers support all four channel types. Physical channels are dynamically defined according to terminal capabilities and needs in the cell. For example, if several speech users are active, the number of type-1 channels is increased, at the expense of GPRS and Edge channels. Obviously, channel management must be automated, to avoid the splitting of channels into static groups. Otherwise, trunking efficiency would diminish.

3. Interleaving

To increase the performance of the higher coding schemes in EGPRS (MCS7 to MCS9) even at low C/I, the interleaving procedure has been changed within the EGPRS standard. When frequency hopping is used, the radio environment is changing on a per-burst level. Because a radio block is interleaved and transmitted over four bursts for GPRS, each burst may experience a completely different interference environment. [7]

If just one of the four bursts is not properly received, the entire radio block will not be properly decoded and will have to be retransmitted. In the case of CS4 for GPRS, hardly any error protection is used at all. With EGPRS, the standard handles the higher coding scheme differently than GPRS to combat this problem. MCS7, MCS8 and MCS9 actually transmit two radio blocks over the four bursts, and the interleaving occurs over two bursts instead of four. This reduces the number of bursts that must be retransmitted should errors occur. The likelihood of receiving two consecutive error free bursts is higher than receiving four consecutive error free bursts. This means that the higher coding schemes

for EDGE have a better robustness with regard to frequency hopping.

4. EDGE & GPRS

EDGE, or the Enhanced Data Rate for Global Evolution, is the new mantra in the Global Internet Connectivity scene. EDGE is the new name for GSM 384. The technology was named GSM 384 because of the fact that it provided Data  Transmission  at a rate of 384 Kbps. It consists of the 8 pattern time slot, and the speed could be achieved when all the 8 time slots were used. The idea behind EDGE is to obtain even higher data rates on the current 200 KHz GSM carrier, by changing the type of the modulation used.

Now, this is the most striking feature. EDGE, as being once a GSM technology, works on the existing GSM or the TDMA carriers, and enables them to many of the 3G services. Although EDGE will have a little technical impact, since its fully based on GSM or the TDMA carriers, but it might just get an EDGE over the up coming technologies, and of course, the GPRS. With EDGE, the operators and service providers can offer more wireless data application, including wireless multimedia, e-mail (Web Based), Web Infotainment, and above all, the technology of Video Conferencing.

Now all these technologies that were named earlier, were the clauses of the IMT-UMTS 3G Package. But, with EDGE, we can get all these 3G services on our existing GSM phones, which might just prove to be a boon to the user.

The current scenario clearly states that EDGE will definitely score higher than GPRS. The former allows its users to increase the data speed and throughput capacity, to around 3-4 times higher than GPRS.

Secondly, it allows the existing GSM or the TDMA carriers to give the sophisticated 3G services. And with 1600 Million subscribers of GSM in over 170 countries, offer the full Global Roaming, anywhere between India to Japan and to San Francisco. Based on an 8 PSK modulation, it allows higher bit rate across the air Interface. There is one symbol for every 3 bits. Thus, EDGE Rate is equal to 3x GPRS Rate.

5. Future Evolution Towards WCDMA

The next evolutionary step for the GSM/EDGE cellular system includes enhancements of service provisioning for the packet-switched domain with the service provisioning in UMTS/UTRAN (UMTS terrestrial radio access network). GERAN will provide improved support for all quality of service (QoS) classes defined for UMTS: interactive, background, streaming and conversational. By doing so, a new range of applications, including IP multimedia applications, will be adequately supported. This part of the GSM/EDGE evolution focuses on support for the conversational and streaming service classes, because adequate support for interactive and background services already exists. Additionally, parallel simultaneous bearers will support multimedia applications with different QoS characteristics towards the same MS, such as multiple media streams handled through IMS domain. A driver for such evolution on the packet-switched side is the paradigm shift within the telecommunications world from circuit to packet-switched communications.

Both the core network defined for GPRS and the current GSM/EDGE radio access network require modifications to support enhanced packet services. The GPRS/EGPRS networks can quickly and cost effectively evolve with market needs, and align with services provided by WCDMA networks. The current evolution of GSM/EDGE, which covers all of the above aspects, is being standardized in 3GPP TSG GERAN. [4]

6. EDGE in Pakistan

Pakistan has the sixth largest population in the world – approximately 150 million. There are currently four mobile operators in the country. Mobile penetration at the end of 2003 was just 2.3% with a subscriber base of 3.4 million, while fixed line penetration was approximately 2.4%. Many geographic areas in Pakistan are without telephone coverage. To accompany recent positive economic development in Pakistan and the inherently low mobile penetration, high growth within the mobile segment is expected. At the moment the people in Pakistan are more concern with the text-enabled facility like SMS. Although the introduction of GPRS gave a new concept and new boost in Cellular network but still, people are not that much concern using Internet by their terminal. Few think that it still more costly and few believe that GPRS didn’t develop the interest for using Internet if we compared it by computer.

In April 2004 Norwegian mobile telecom operator, Telenor, bid for and ultimately won a license to operate a cellular network in Pakistan. The license covers the operation of Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS) and Enhanced Data Rates for Global Evolution (EDGE) technology for the network. [14]

Telenor Pakistan has signed two deals with mobile infrastructure contractors for different areas of the network:

Nokia have signed a three-year deal to build and operate a GSM / GPRS / EDGE network to cover the central and Northern Punjab region (phase one), centered around Lahore.

Siemens have signed a deal to build a GSM / GPRS / EDGE network to cover the southern areas of Pakistan, centered around Islamabad.

Further enhancements in data capability over the core GPRS / GSM network will be provided in both networks with the installation of Enhanced Data for Global (GSM) Evolution technology. This component of the two systems will be installed after the initial roll-outs and will allow the subscribers to have the use of advanced mobile services such as downloading video and music clips, full multimedia messaging, high-speed color Internet access and email on the move.

Nortel Networks will upgrade Ufone’s existing wireless systems and supply new GSM/GPRS core network and radio access equipment, including Mobile Switching Center, Home Location Register (HLR) and advanced Base Transceiver Stations (BTS).

A key component of the Ufone expansion will be Nortel Networks BTS 12000, designed to deliver additional capacity within a GSM/GPRS network while positioning operators to drive lower costs and to offer advanced wireless services based on third generation (3G) EDGE (Enhanced Data for GSM Evolution) technology. The expansion will also include Nortel Networks Passport Packet Voice Gateway (PVG) for migration of TDM voice trunking to a packet-based infrastructure.

7. Benefits

As highlighted previously the need to reduce business risk and make the best use of existing resources is of paramount importance within today’s business environment.

7.1. Financial

GSM based networks have become the standard within the cellular landscape. As EDGE is a GSM based technology and provides an enhancement for GPRS at a little additional cost it is considered the best way in which to capitalize on existing resources. [1]

7.1.1. Radio Access Network

In most cases GPRS enabled base stations and BSC’s can be simply upgraded to EDGE by way of relatively low-cost software and hardware upgrades, which will pro-long the life cycle of the deployed RAN elements.

7.1.2. Core Network

For GPRS enhancement, there is very little modification to be completed within a GPRS enabled core network, thus enhancing the sunk core network investment.

7.1.3. Antenna Sites

There is no requirement for additional antenna sites when deploying EDGE. Assuming high quality linear amplifiers with high RF output power are used within the BTS, the coverage pattern will be the same as the existing GPRS deployment, so protecting existing site investment.

7.1.4. Spectrum Utilization

EDGE triples the GPRS data capacity whilst using the existing GSM spectrum and offers up to three times the GPRS data rate to the end user. EDGE is spectrally the most efficient radio technology for data applications requiring up to 100Kb/s throughput (compared to CDMA and WCDMA), and only WCDMA is spectrally better for higher throughputs.

7.1.5. Applications

GPRS enabled applications and services will generally not require any additional investment to become EDGE compatible. This is also valid for known WCDMA applications.

Although the financial benefits of EDGE can be apportioned to individual network elements as outlined above, one of the main business drivers is that EDGE forms an essential part of the overall GSM evolution towards a seamless multi-radio GSM/ GPRS/EDGE/WCDMA network. As mentioned previously GSM is the main standard for cellular communications worldwide and the business benefits of deploying an industry standard technology can be seen in nearly every aspect of a network deployment, from end-user devices, to applications to hardware.

7.2. For Operator

Operators can also experiences the advantages of EDGE in following ways.

7.2.1. Migration to wireless multimedia services

The operator can increase data revenues by offering attractive new types applications to end-users.

7.2.2. Improved customer satisfaction

Increased data capacity and higher data throughput will decrease response times for all data services, thus keeping end users satisfied and connected.

7.2.3. Early deployment of 3G type applications

EDGE networks are expected to emerge in year 2001, when mature markets are likely to start demanding multimedia applications.

7.2.4. Quick network implementation

EDGE will not require new network elements and EDGE capability can be introduced gradually to the network.

7.3. For User

7.3.1. Improved quality of service

Increased data capacity and higher data throughput will eventually satisfy the customers’ need for QoS.

7.3.2. Personal multimedia services

Attractive new types of applications and terminals will become available.

7.3.3. Potentially lower price per bit

Lower cost of data capacity for high-speed data applications gives the operator flexibility in pricing.

8. Conclusion

While the tug of war between access technologies – CDMA vs. UMTS vs. GSM — continues to be debated globally, EDGE provides an ideal solution for GSM carriers to add data capacity using limited spectrum. Keeping in view the fact that GSM supports more subscribers today than any other access technology (roughly 65 to 70% of the global subscriber market), and that GSM/GPRS operators are scrambling to add capacity to support user growth and launch next generation data services, the increased capacity and throughput offered by EDGE becomes very compelling. And, in a market where wireless carriers must squeeze the most out of capital outlays–past and future, it is no real surprise that we are going to see a renewed wave of interest in EDGE from our GSM customers.

Today the position of EDGE as a technology evolution of GSM is clear. Initially promoted as an alternative to WCDMA and generally a niche technology, EDGE is now regarded as a key enabler for GSM/EDGE and WCDMA operators alike. Being able to drive business value from existing GSM infrastructure and spectrum is one of the main advantages, and along-with the ability of EDGE to reduce CAPEX, time-to-market and time-to-revenue, with regards the delivery of global high-speed data services, EDGE is a must technology.

The cellular companies working in Pakistan did not have the license for the EDGE. Now as the introduction of some new companies like Telenor and WARID, it is possible that in near future Pakistan will also be able to use this facility. Then GPRS can become a real important factor in cellular network, as the people in Pakistan will use the Internet not only for downloading ring tones but also can enjoy the streaming videos by their cell phone and so many other facilities.

Researching the Pros and Cons of Getting Your Degree Online

Are you considering getting your bachelor’s or master’s or other degree online? It’s a growing field that’s receiving acceptance and approval for all types of career and education goals.

The biggest advantage to online degree education is that it’s a complete college degree program that is delivered via the Internet. All classes, materials, tests and lectures are delivered online. This process allows the student to “attend” class from anywhere at any time that is convenient to them.

According to educators from Cornell University, “the web provides significant new functionality in transmitting information to the student and providing forums for exchange. The web is revolutionizing some areas of study through increased opportunities for learning and alternative formats for information.” (Dwyer, Barbieri, and Doerr, 1995).

One of the ways it has done this is through enhanced student-to-student and faculty-to-student communication. Students and faculty can both benefit from using the communication and assessment tools that are made available via online learning.

The technology also enables students to exercise more flexibility in their approach to education, depending on what best suits their personal learning styles and busy schedules.

In addition, the class material and program is continuously updated for up to the minute, real world application. This allows the student to immediately begin applying their new knowledge to their existing work environment.

There are many different types of programs available. Students can receive a bachelor’s or master’s degree in many areas such as accounting, marketing, human resources, e-business, information technology, nursing and even elementary education.

The typical online program takes three years to complete. A master’s degree program may take up to four years depending on the type of degree sought and the prior education of the student.

Most programs are accredited and they usually accept the transfer of prior credits from other accredited universities. Some of them are also well-known off-line schools such as Duke, Stanford, Jones International, and Capella.

While enrolled, a student typically takes just one class at a time for a five to six week period. This allows the student to concentrate solely on that material before moving on to the next module of information.

The price of an online degree education program is comparable to that of a regular college degree. Plus, many students are eligible for financing in the way of a student loan. Sometimes employer education programs can even reimburse a student’s tuition fees.

Keep in mind though, that you may have to be a little more organized and self-motivated for this type of education and you will have to manage time demands in other areas of your life. Because you normally won’t have set class times, it will be up to you to the time into your schedule. Then again, some programs require that you log on to the Internet at designated times for virtual class sessions.

Another potential disadvantage is that some employers still prefer that their employees have degrees from traditional colleges. However, these views are rapidly changing.

A recent survey of 1,300 graduates and 80 employers asked supervisors to rate the value of the degree earned by their employee compared to a resident school degree in the same field. Sixty-nine percent of the supervisors rated the online degree “just as valuable” or “more valuable” than traditional degrees. This means that one out of three supervisors need to be convinced that an online degree offers the same quality and content as a traditional degree.

Plus, traditional brick and mortar universities who offer online courses often make no separation between their programs and the type of degree awarded. And transcripts do not indicate whether a course was done at a distance or on campus.