4G Advantages And Disadvantages

Less than a decade ago, the telecom operators in the U.S., Western Europe, and Japan were upgrading their existing networks to high-speed 3G technologies. Now the world telecommunications industry is about the switching to the next-generation super-fast 4G technologies.

This paper is organized as follows: Section II will discuss the evolution of mobile wireless networks, Section III will introduce objectives of the 5G mobile network, Section IV will talk about goals to be evaluated in 5G wireless network communications, and Section V will present some concluding remarks.

When Cellular phones first came out the main use was to make phone calls. The first generation of the cell phone transmitted information the same analog format as a fixed line. The second generation (2G) transmission switched to digital which gave cell phones the ability to

The initial 4G technology Sprint offered was based of WiMAX technology. WiMAX proved to be fast technology, but lackluster in its performance and capabilities in regards to LTE. LTE has become the primary 4G technology in the United States while development of WiMAX has ceased. In addition, Sprint’s 4G vision has switched to LTE. The question is raised “Why did LTE win over WiMAX?”. From many perspectives, LTE proved to be the superior technology.

CDMA and GSM are the two types of technologies or way used in cell phones for transmitting the digital signal over the air . CDMA stands for Code Division Multiple Access as from the name it is clear that in this technologies the radio frequency are divided so that multiple user can access the same wireless spectrum . GSM stands for Global System for Mobile Communication as from the name it is clear that

The purpose of this write up is to introduce fundamental designs and architectures of Self-Organizing Networks. This concept was presented during the transitional period from 3G to 4G technology. During this period mobile communications began to grow rapidly. Self-Organizing Network functions are separated into three major groups: self-configuration, self-optimization, and self-healing. Self-configuration allows devices to function properly with a system the instant they are connected. Self-optimization supports networks by examining the performance of a system and modifying procedures to operate at an efficient level.

Telecommunication technologies have evolved rapidly over the past decades, a situation which led to the arrival of the 4G Long Term Evolution (LTE) to provide faster data speed better than the legacy 3G EVDO data technology. Certainly, LTE has been of great benefit to both individuals and corporations across the globe. However, operators are often faced with challenges such us Capacity constraints, slow throughput due to increased numbers of usage, interference from other wireless equipment, as well as poor coverage issues.

The First Generation of communication system is the Analog cellular system, means carrier is Analog. we just send wave forms primarily with voice. it is continuous in amplitude and time. variation in a signal disrupts over long distance . This Analog system was introduced in seventies.NMT , AMPS, TACS, CDPD technologies were used in 1G. It uses FDMA technique call to one country. All the Analog systems were used circuit switched technology and design only for voice communication not data. The cost for the system and voice transfer is also high in 1G.Problems with 1G is poor voice quality , less battery life , no security , the phone size is big and frequent call drops.

In this paper, it gives description about 4G network, architecture and discuss about functions of each layer. It is evident that 4G technologies will expand on web-based communication around the world. 4G technology will allow for improved applications such as telemedicine that may save lives. It is a fully imp-based network and will improve data transfer dramatically. Signal disruptions will be minimal and downloads will be done in a matter of seconds, faster than ever before. Within few days 4G network may replace all existing 2G, 2.5G, 3G networks and it

The era of new wireless communication is evolving and it will soon penetrate into daily life and change the way we live. The key concept is integrating the 4g capabilities with all of the existing mobile technology. The purpose of this paper is to provide an overview of different aspects of 4g technology which include its features, proposed architecture and key technological enabler.

The revolution of network technology began several years ago, with fourth generation (4G) network being the recently technological innovative of the internet world. Therefore, 4G networks is the fourth generation wireless network, which set the stage for broadband mobile communication that will succeed the third generation (3G) network which is currently in use in some many countries around the globe. It also provides mobile ultra-broadband internet access with USB wireless modem to laptops and even Smartphone ( HYPERLINK "https://profiles.google.com/118388133610479779997" Sascha Segan, 2011).

3G wireless technology represents the convergence of various 2G wireless telecommunications systems into a single global system that includes both terrestrial and satellite components. One of the most important aspects of 3G wireless technology is its ability to unify existing cellular standards, such as CDMA, GSM, and TDMA, under one umbrella. It improves the efficiency of data can be transferred through the cellular phone. The data transfer rates for third generation mobile telecommunications is up to 2 Megabits per second. Aside from this feature, 3G cellular phones also have conventional voice, fax and data services, as well as high-resolution video and multimedia services which can be used while on the move. It also includes mobile office services such as virtual banking and online-billing, video conferencing, online entertainment and access to the Internet.

All these systems were designed independently, targeting different service types, data rates, and users. As these systems all have their own merits and shortcomings, there is no single system that is good to replace all the other technologies. Instead of putting into developing new radio interface and technologies for 4G systems, it is believed in establishing 4G systems is a more feasible option.

Global system for mobile communication was widely used by 2G and it was standardised in Europe in 1992 but it is now used worldwide. In 1998 there were around 100 million subscribers of GSM and it reached 500 million subscribers at the end of year 2002 and it’s exceeding to 10 billion at the end of year 2004. The GSM technology is based on the TDMA (Time division multiple access) and FDMA (Frequency division multiple access) techniques. GSM works at 900 MHz and 1800 MHz frequency bands in Europe and 1900 MHz frequency bands used in North America.

The 2.5G it is basically an enhancement of the two major 2G technologies to provide increased