Performance of Half Duplex Cellular Network over a Multiple Access Relaying Channel

Abstract

In the perspective of improving coverage and spatial diversity the need for cooperative relaying has already proved mandatory. The need for multiple access relaying is also proportionately increasing with an enhanced signal reception and reduced system cost with less number of base stations. The use of Analog Network Coding (ANC) on the Multiple Access Relay Channel (MARC) with multiple relay has been under investigation. Two phases of transmission is performed in the relaying environment to enhance the performance in a co-operative wireless system. The data from the source to relay is communicated on a virtual MIMO scheme and the data from the relay to destination is time shared.  An analytical modeling has been derived for both direct and indirect links with MARC two phase transmissions. The performance analysis in terms of Bit Error Rate (BER) for both direct and indirect links is carried out for Rayleigh fading channel. The performance of the proposed model shows an optimal improvement in the error rate analysis.