Comparison of selection and maximal ratio combining in cooperative network coding with AF and DF

Cooperative communication of network coding system is a technique used to overcome the problems of multipath fading, despite the obstacles that still occur are not yet optimal SNR to be good performance. In this paper the author provides a solution by considering two concepts combining which used selection combining (SC) and maximal ratio combining (MRC). By using two general strategies relay protocols of cooperative that amplify-and-forward (AF) and decode-and-forward (DF). Components of the measurement are to calculate the bit error rate (BER) and throughput. Results of the research are SC value BER better than MRC, because network coding have fading coefficient MRC becomes greater than SC only choose one of the best signal. Throughput which on using MRC and SC resulted greater value using network coding than without using network coding.