Performance Analysis of a Simple Relay Coding Scheme Based on XOR Operation

Network coding emerging as a promising technology in wireless communication refers to coding at the relays. This paper presents a relay coding scheme that one relay processes the source’s data by XOR operation and then transmits to the destination. We analyzed the theoretical performance of the presented scheme using system outage probability, and did Monte Carlo simulation by the criterion of bit error rate (BER). Results show that this scheme provides an additional diversity gain, outperforms the conventional scheme with two relays, and approaches to the conventional scheme with three relays.