Performance analysis of MRC and EGC based cooperative diversity system using incremental relaying

Cooperative diversity decreases the fading in communication system. It comprises of a source, a destination and a relay to do the error analyses. Analysis is done using Equal Gain Combining (EGC) and Maximal Ratio Combining (MRC) technique with Incremental Relaying. For a cooperative diversity system employing incremental relaying, it is assumed feedback channel is present to relay from the destination. Receiver sends the feedback to the relay then Incremental relaying works. when the receiver SNR value is below the threshold, the relay forwards source signal to the destination. This achieves better performance than other relaying protocols. The Symbol Error Probability (SEP) with incremental relaying for MRC and EGC Technique is analyzed in closed form.