4g Eliminating The Imperfection Of 3g Information Technology Essay

4g Eliminating The Imperfection Of 3g Information Technology Essay

4g Eliminating The Imperfection Of 3g. In the field of mobile communication, the user requirements and demands are ever increasing. 3G mobile system has been partially able to fulfill the requirement in terms of higher bandwidth, seamless connectivity, and the most important of all quality of service.

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So, to cope up with these limitations, various researches are being carried on and 4G technology has been proposed. 4G is all about the next generation of mobile communication technology where the present available wireless communication technology will be integrated to provide seamless connectivity to the users with the benefit of higher bandwidth and quality assured services.

This paper discusses in brief about the generations of communication technology implemented till date and evaluates on the failure of third generation of mobile communication technology to fulfill today’s technological requirements .

This paper specially focuses on the medium access technology used in fourth generation of mobile communication technology to overcome the limitations of 3G and serve the purpose of higher bandwidth and quality of service to the users.

Index Terms-3G, 4G, OFDM, CDMA, MC-CDMA, DS-CDMA

INTRODUCTION

TODAY’S period is the world of communication and people demand their information sharing to be prominent and qualitative to the most. 3G is the latest technology serving till date with its highest possible capabilities.

But it is not enough to fulfill current demands like higher bandwidth in data transmission rate and QOS (Quality of Service) in terms of HQ videos and HQ voices. Also the present generation demands seamless connectivity so that they are not interrupted in the middle of communication and QOS is ever maintained.

All these issues have forced the researchers to come up with the technology to meet up the demands of users in terms of areas like high speed in data transfer, quality of service and uninterrupted connectivity.

So, the engineers have proposed 4G as the next generation of promising technology with characteristics like higher bandwidth, quality of service, seamless connectivity among any available wireless communication technology.

4G is not a completely new technology but the seamless integration of current available terminals, networks and applications…………………….