摘要
在基站与移动节点的单跳传输中,引入了网络编码的传输思想。在此基础上,提出了编码组的概念,并描述了以编码组为控制单元的传输模型。在该模型基础上,引入了网络编码和嵌套网络编码2种编码组传输方式,并通过对2种编码组传输方式的分析,提出了编码组传输控制算法及其改进算法。最后通过仿真实验表明,与传统单播传输相比,编码组传输模型确实可以提高无线网络传输的正确率,降低无线网路的重传率,提高移动IP的整体性能。
The concept of the network coding was introduced in the one-hop transmission between base station and the mobile nodes. Then the concept of the coding group was proposed, and transmission model was also described based on coding group. Furthermore, network coding and nest network coding transmission methods under this model were intro- duced, and then through the analysis of the methods, the coding group transmission control algorithm and the improved algorithms was proposed. At last, after the simulation, the coding group transmission can do improve the wireless transmission correct rate comparing to the traditional unicast transmission, at the same time it can decrease the retransmission which would lead to improvement of mobile IP performance.
出处
《通信学报》
EI
CSCD
北大核心
2008年第8期77-86,共10页
Journal on Communications
基金
国家自然科学基金重大研究计划项目(90604003)
;国家自然科学基金资助项目(60603067)~~
关键词
网络编码
编码组
无线传输
移动IP
network coding
coding group
wireless transmission
mobile IP