华中科技大学学报（自然科学版）2013，Vol.41Issue(6)：30-36,7.
广播重传中基于多包解码的高效快速网络编码
Efficient rapid multi-packet decoding and network coding based broadcasting retransmission
摘要
Abstract
At current wireless broadcasting retransmission approach based on network coding,NCWBR (network coding wireless broadcasting retransmission) would decline the performance of the network and increase the retransmission numbers if the same node has more than two losing packets.An approach of efficient rapid MDNCBR (multi-packet decoding and network coding based broadcasting retransmission) was presented according to the idea of recovering packets from the encoded packets which cannot be decoded and stored in buffer.IMDNCBR (improved MDNCBR) was further put forward by using the optimization scheme,retransmitting when breaking cross relation.Theoretical analysis and simulation results reveal that this way can improve the efficiency of decoding in the received nodes,and determine the packets which need to be retransmitted.Compared with NCWBR approach,MDNCBR and IMDNCBR can effectively reduce the retransmission numbers,transmission delay and network overhead,and improve the efficiency of transmission.关键词
无线网络/广播重传/网络编码/多包解码/重传次数Key words
wireless networks / broadcasting retransmission / network coding / multi-packet decoding/retransmission numbers分类
信息技术与安全科学引用本文复制引用
姚玉坤,易建琼,任智,温亚迪..广播重传中基于多包解码的高效快速网络编码[J].华中科技大学学报（自然科学版）,2013,41(6):30-36,7.基金项目
国家自然科学基金资助项目(60972068) （60972068）
重庆市科委自然科学基金资助项目(cstc2012jjA40040). （cstc2012jjA40040）
