Arbitrary Decode-Forward Relaying with Re-Encoded Bits Selection Strategy for Polar Codes  

作　　者：Di Guan Kai Niu Chao Dong 

机构地区：[1]Key Laboratory of Universal Wireless Communication,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China

出　　处：《China Communications》2023年第8期153-162,共10页中国通信（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant 92067202,Grant 62071058.

摘　　要：In this paper,we propose an arbitrary decode-forward single-relay scheme for finite blocklength polar codes,which can be applied to the general symmetric discrete memoryless relay channel with orthogonal receiver components.The relay node decodes the received message.The relay node selectively re-encodes the message and transmits it to the destination node.Furthermore,in order to minimize the upper-bound of the block error probability,we propose a selection strategy to decide the proper re-encoded bit set by the relay.Simulation results are presented to illustrate the improvement in decoding performance of the proposed scheme compared to conventional relay schemes in both additive white Gaussian noise(AWGN)channel and Rayleigh fading channel(RFC).

关 键 词：polar codes decode-and-forward relaying arbitrary relay channel block error rate estimation 

分 类 号：TN911.22[电子电信—通信与信息系统]