Reliability-Based Subpacket Transmission for Hybrid ARQ with LDPC Codes

摘要：

An irregular LDPC coded sub-packet hybrid ARQ(HARQ) scheme based on instantaneous reliability is presentedfor selection and retransmission. Reliability-based (RB) HARQwas initially proposed for Turbo coded case with iterativedecoding, whereas for irregular LDPC coded scenario, adegree distribution based (DDB) retransmission strategy waspresented that the nodes with large degree have higherretransmission priority in 10. In this paper, we focus on theimproved approach to segment and select sub-packetsaccording to instantaneous reliability for potential throughputperformance enhancement. Numeral results with link levelsimulation demonstrate that a significant throughput gain isrealized by setting suitable length of sub-packets for reliabilitybased retransmission than DDB scheme.

作者: Jia Minli He Zunwen Kuang Jingming Fei Zesong

作者单位: Dept.of Electronic Engineer Beijing Institute of Technology Beijing, China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）