An Evolution Wireless Channel Model System and Its Diversity Schemes

Abstract

Wireless channels operate through electromagnetic radiation from the transmitter to the receiver. A channel can be modeled physically by trying to calculate the physical processes which modify the transmitted signal. Channel models may be continuous channel models in that there is no limit to how precisely their values may be defined [1]. In the telecommunication system diversity scheme refers to a process for improving the reliability of a message signal by using two or more communication channels with different characteristics.
Key word: Wireless, channel, PCS, AWGN, LOS, Fading.