Performance of iteratively decoded bit-interleaved coded modulation with chaos based interleaving strategies  

作　　者：ZOU XueLan LIU WeiYan FENG GuangZeng 

机构地区：[1]Department of Electronic and Information Engineering, Zhejiang Institute of Media and Communications, Hanqzhou 310018, China [2]Department of Information Engineering, Jiangsu City Vocation College, Nanjing 210036, China [3]College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

出　　处：《Science China(Information Sciences)》2010年第4期833-841,共9页中国科学（信息科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10974171); the Scientific Research Project of Zhejiang Education Department (Grant No. Y200906484)

摘　　要：Bit-interleaved coded modulation with iterative decoding （BICM-ID） is a bandwidth efficient transmission scheme which is well suitable for next-generation mobile communications. The interleaver design is critical to the high performance of BICM-ID. In this paper we investigate the application of the chaos theory to the interleaver design to further improve the performance of BICM-ID. A new interleaving scheme based on the chaos theory is proposed. Compared with the random interleaver, the proposed approach has the advantages including lower system delay and higher transmission efficiency. Simulation results in both additive white Gaussian noise （AWGN） channel and Rayleigh fading channel are provided, which demonstrates that the new interleaver is better than the random interleaver and exhibits excellent performance when applied to the BICM-ID system.Bit-interleaved coded modulation with iterative decoding （BICM-ID） is a bandwidth efficient transmission scheme which is well suitable for next-generation mobile communications. The interleaver design is critical to the high performance of BICM-ID. In this paper we investigate the application of the chaos theory to the interleaver design to further improve the performance of BICM-ID. A new interleaving scheme based on the chaos theory is proposed. Compared with the random interleaver, the proposed approach has the advantages including lower system delay and higher transmission efficiency. Simulation results in both additive white Gaussian noise （AWGN） channel and Rayleigh fading channel are provided, which demonstrates that the new interleaver is better than the random interleaver and exhibits excellent performance when applied to the BICM-ID system.

关 键 词：chaos interleaving bit-interleaved coded modulation （BICM） iterative decoding 

分 类 号：TN929.5[电子电信—通信与信息系统] O415.5[电子电信—信息与通信工程]