摘要
在分析基于802.11的Ad Hoc多跳网络中存在的TCP不公平性问题及其产生原因的基础上,提出了一种新的方案——DWDB(double windows dynamic backoff)算法,对基本802.1l MAC协议进行了退避算法和重传机制的修改。仿真结果表明该方案有效地解决了不公平性问题。
The unfairness problem of TCP connections was analyzed, and the DWDB (double Windows dynamic backoff) mechanism to solve this problem was proposed to modify the exponential back-off algorithm and retransmission scheme in 802.11 MAC sub-layer. The proposed mechanism is dynamic and sensitive to the change in the network condition and topology. Also, the simulation results show that the problems mentioned above were solved by using our new method.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
2004年第1期32-36,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国防预研基金资助项目