Distributed random projection code scheme for decode and forward relay channel

Abstract

Random projection code (RPC) is a promising technique to implement the rate adaption in modern wireless communication system. This paper introduces RPC to decode-and-forward relay channel system, and proposes a scheme of distributed RPC (DRPC) with rate adaption nature. In this paper, we discuss how to demodulate and decode signal jointly for DRPC. Finally, we evaluate DRPC schemes by an evaluation metric named goodput. Experimental results show that the throughput of DRPC schemes is higher at least 0.4 bit/s/Hz than RPC scheme at SNR ranging from 5dB to 25dB.