一种基于RCPT码的混合ARQ方法及其在衰落信道下的性能

Hybrid ARQ Scheme Using Rate Compatible Punctured Turbo (RCPT) Codes and Its Performance over Rayleigh Fading Channel

本文基于码率匹配截短Turbo(RCPT RateCompatiblePuncturedTurbo)码 ,综合利用“码字校验交替重传”方案及Chase组合技术 ,提出了一种新型混合ARQ(HybridAutomaticRepeatreQuest)方法 ,并进一步在瑞利衰落信道上对该方法的性能进行了仿真验证 ,同时将其与几种现有基于RCPT码的混合ARQ方法进行了比较 .数值结果表明 。

This paper presents a novel Hybrid ARQ (Automatic Repeat request) scheme, which jointly utilizes RCPT (Rate Compatible Punctured Turbo) codes and CPC (alternate Codeword retransmission and Parity retransmission and Chase combining) strategy. Performance of the proposed scheme is investigated by numerical simulations and compared with several current Hybrid ARQ schemes using RCPT codes over Rayleigh fading channel. Numerical results show that the proposed scheme can provide better performance with lower system complexity.