摘要
基于校正子的计算提出了一种第一类混合ARQ(HARQ)方案,该HARQ采用Reed-Solomon(RS)码作为纠错子系统,将检错功能巧妙融于译码过程中。对系统误比特率和吞吐量的分析与仿真表明,短码宜采用前向校正子结构,长码宜采用后向校正子结构,而系统的吞吐量与可靠性之间的最佳折衷,可以通过选择恰当的最大重传次数实现。
A syndrome-based type-1 Hybrid ARQ (HARQ) is proposed, where Reed-Solomon code is selected to be the FEC subsystem and the error-detection function is embedded ably in the decoding process. Analytical and simulation results of Bit Error Rate (BER) and throughput efficiency of the system show that syndrome-ahead and syndrome-behind structures are suited to short codes and long codes, respectively. By choosing the maximum of retransmission times, a perfect tradeoff can be obtained between the throughput efficiency and the reliability of the system.
出处
《电子与信息学报》
EI
CSCD
北大核心
2006年第2期242-246,共5页
Journal of Electronics & Information Technology
基金
国家自然科学基金(6001161943)香港研究资助局(RGC)基金(N_HKU 709/00)联合资助北京交通大学科技基金(2003RC042)资助课题