2g Seminar

2G-5G Networks: Evolution of Technologies, Standards, and Deployment .

ABSTRACT

This article presents an overview of the evolution of technologies, standards, and deployment from second to fifth generation mobile networks with emphasis on current and future trends in the areas of wireless networking, multimedia technology, network architecture, and network services. Related research in the development of future mobile systems has been highlighted. Issues of system integration, global roaming capabilities, handoff, high speed multimedia support, ad-hoc networking, quality of service, and physical layer problems has been addressed. In addition, global developments in multimedia network services and terminals have been discussed.

INTRODUCTION

The fourth and fifth generation wireless mobile systems, commonly known as 4G and 5G, are expected to provide global roaming across different types of wireless and mobile networks, for instance from satellite to mobile networks and to Wireless Local Area Networks (WLANs). 4G is an all IP-based mobile network using different radio access technologies providing seamless roaming and providing connection via always the best available network [1]. The vision of 4G wireless/mobile systems is the provision of broadband access, seamless global roaming, and Internet/data/voice everywhere, utilizing for each the most "appropriate" always best connected technology [2]. These systems are about integrating terminals, networks, and applications to satisfy increasing user demands ([3], [4]). 4G systems are expected to offer a speed of over 100 Mbps in stationary mode and an average of 20 Mbps for mobile stations reducing the download time of graphics and multimedia components by more than ten times compared to currently available 2 Mbps on 3G systems.

The fifth generation communication system is envisioned as the real wireless network, capable of supporting wireless world wide web (wwww) applications in 2010 to 2015 time frame. There are...