基于可逆RS码的第Ⅱ类多进制混合ARQ及其性能分析  

Invertible RS Codes Based Non-binary Type-II Hybrid ARQ and Its Performance Analysis

作　　者：张立军[1] 曹志刚[1] 李安国[2] 

机构地区：[1]清华大学电子工程系 [2]香港大学电机电子工程学系

出　　处：《上海交通大学学报》2006年第1期50-53,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(6001161943);香港研究资助局(RGC)基金(N-HKU709/00)

摘　　要：针对二进制第Ⅱ类混合自动请求重传差错控制系统流量偏低的问题,提出了基于Reed-Solomon(RS)码的多进制混合自动请求重传方案.该方案将信息经RS码编码后,采用多进制调制,信息部分与校验部分分开传输,码的可逆性使得仅由无误的校验部分便可恢复出信息,利于提高流量.数值结果表明,该方案在Rician衰落信道下的流量比传统的二进制方案有了明显提高,同时可靠性依然保持与二进制方案相同的水平.Reed-Solomon （RS） code based non binary type-Ⅱ hybrid automatic-repeat-request （HARO） was proposed to overcome the shortcomings of low throughput for the binary scenario. The non-binary HARQ encodes the information with RS code, and the information and parity-check parts are transmitted through multi-level modulation, respectively. The invertibility of RS code ensures that the information can be recovered by an error-free parity-check part alone, thus facilitating the increase of throughput. The numerical results show that the non-binary HARQ can get much higher throughput than the binary case in Rician fading channel, while the reliability is still kept at the same level as the binary scenario.

关 键 词：第2类混合自动请求重传 Reed—Solomon码 可逆性 

分 类 号：TN911.22[电子电信—通信与信息系统]