4G Vision

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The 4G systems are projected to solve the still-remaining problems of 3G systems [1 – 3] . They are designed to provide a wide variety of new services, from high-quality voice to high definition video to high-data-rate wireless channels. The term 4G is used broadly to include several types of BWA communication systems, not only cellular systems. 4G is described as MAGIC — Mobile multimedia, Anytime anywhere, Global mobility support, Integrated wireless solution, and Customized personal service (see Figure 6.2 ). The 4G systems will not only support the next generation mobile services, but also will support the fixed wireless networks. The 4G systems are about seamlessly integrating terminals, networks, and applications to satisfy increasing user demands.

Accessing information anywhere, anytime, with a seamless connection to a wide range of information and services, and receiving a large volume of information, data, pictures, video, and so on, are the keys of the 4G infrastructure. The future 4G systems will consist of a set of various networks using IP as a common protocol. 4G systems will have broader bandwidth, higher data rate, and smoother and quicker handoff and will focus on ensuring seamless service across a multiple of wireless systems and networks. The key is to integrate the 4G capabilities with all the existing mobile technologies through the advanced techniques of digital communications and networking.

Source of Information : Elsevier Wireless Networking Complete 2010

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