21-03-2012, 06:13 PM
i'm veerabhadra, i want distributed wireless communication system ppt's, iam not getting it any where
ABSTRACT
The basic problems of wireless access are that the available spectrum is too limited and there is great attenuation of energy.These can be solved by frequency reuse and by reducing the maximum distance from the terminal to the nearest base station.
Distributed wireless communication system (DWCS) is a new architecture for a wireless access system with distributed antennas, distributed processors, and distributed controlling. The basic idea is to flatten the tree cellular structure. With distributed antennas, system capacity can be expanded through dense frequency reuse, and transmission power can be greatly decreased. With distributed processors controlling, the system works like a software or network radio, so different standards can coexist, and the system capacity can be increased by co-processing of signals to and from multiple antennas.
The beyond 3G ie. 4G mobile communications is aimed at much larger capacity and coverage requirements. DWCS is candidate architecture to fulfill these requirements.