Abstract:
In order to improve the data transmission efficiency of wireless networks, reduce the number of retransmission, a new network coded retransmission method is proposed. The network coding technology is applied to retransmission process of wireless network, and according to the packet loss information of the network node, the sender retransmits combined packets with network coding. According to decoding rules, the network node recovers the lost data from the combined packets. Theoretical analysis and simulation experimental results show that the network retransmission method based on network coding can effectively reduce the number of retransmission, and improve the performance of wireless networks.
Key words:
network coding,
wireless network,
network retransmission,
Automatic Repeat-reQuest(ARQ),
broadcast,
transmission bandwidth
摘要： 为提高无线网络数据传输效率，减少数据包丢失重传次数，提出一种基于网络编码的丢包重传方法。将网络编码技术应用到无线网络重传过程中，当有数据包丢失时，发送方重传经过网络编码的组合数据包。根据解码规则，网络节点从组合数据包中恢复丢失的数据。理论分析和模拟实验结果表明，该方法能够有效减少重传数据包的次数，提升无线网络编码性能。
关键词:
网络编码,
无线网络,
网络重传,
自动重传请求,
广播,
传输带宽
CLC Number:
ZHANG Chao, LIANG Song-Chao. Wireless Network Retransmission Technology Based on Network Coding[J]. Computer Engineering, 2013, 39(8): 153-155.
张涛, 梁松涛. 基于网络编码的无线网络重传技术[J]. 计算机工程, 2013, 39(8): 153-155.