Wireless Multicasting with Diversity Combining Techniques

Rosni Sayed, Asaduzzaman Shobug
2016 IOSR Journal of Electronics and Communication Engineering  
We consider Rayleigh fading SIMO multicasting wireless network. At first, we characterize the channel capacity. Then the closed form expressions of Probability Density Function (PDF), Cumulative Distribution Function (CDF) and Complementary Cumulative Distribution Function (CCDF) of the capacity are derived by applying two diversity combining techniques, such as Selection Combining (SC) and Maximal Ratio Combining (MRC). Finally we present a comparison between these two types of diversity
more » ... of diversity combining techniques. Recently, there has been huge interest on diversity combining techniques, several work have been done on this topic. D. G. Brennan analysed different diversity combining techniques in practical use [2] . Luu Pham Tuyen et. Al applied combining and decoding technique at the receivers to reduce fading effect of MIMO (Multiple Input Multiple Output) channel [3] . Jorg Nuchell et. al evaluated results of different linear diversity combining techniques. They showed that the use of multiple receive antennas in combination with adequate signal combining can improve the reliability of communication system even under poor SNR [4] . A. Arokiamarie Johnsi, V. Saminadan proposed diversity combining techniques in Free space Optical (FSO) communication system to mitigate the harmful effect of atmospheric turbulence [5] . Sari khatalin, John Fonseka derived closed form expressions for the capacity of dual branch maximum ratio combining, equal gain combining, selection combining and switching and stay combining over correlated Nakagami-m fading channels [6] . In this paper, we consider a multicasting Rayleigh fading system. We derive closed form expression of outage probability of channel and CCDF of multicast capacity by applying diversity combining techniques. Rest of the paper is organized as follows. In section II, system model is shown. Chapter III, IV and V describes the formulation of PDF, outage probability and CCDF applying two different diversity combining
doi:10.9790/2834-110501103109 fatcat:zrmrxzwwlzaw5e5fnwsr4pzq64