Performance analysis of multicast coded relay network with LDPC and Convolutional codes

In this paper, we have compared the performance of joint network channel coding (JNCC) for multicast relay network using low density parity check (LDPC) codes and Convolutional codes. Multicast relay transmission is a type of transmission scheme in which two fixed relay nodes contribute in the second hop of end-to-end transmission between BTS and a pair of mobile stations. Assuming no line of sight (LOS) between source and the destination we have considered one way and two way multicast scenarios and evaluated the bit error rate (BER) and throughput performance using LDPC and Convolutional block codes. In the proposed scheme we have implemented Exclusive-OR (XOR) based network coding at the intermediate relays in such a way that both diversity and multiplexing gain is achieved. It is worth notifying that BER and end-to-end throughput achieved for LDPC codes is better than Convolutional codes with JNCC implemented.