TFRC协议在Ad Hoc网络中的改进及仿真  

Improve and Simulate the TFRC Protocol in Ad Hoc Network

作　　者：房晓斌[1] 

机构地区：[1]中国科学院研究生院,北京100094

出　　处：《电子技术（上海）》2009年第12期84-87,共4页Electronic Technology

摘　　要：由于TFRC协议不适合Ad hoc网络环境,这将限制TFRC协议在Ad hoc网络中的应用。针对TFRC协议在Ad hoc网络中存在的问题,本文在TFRC算法的基础上提出了一种基于丢包区分机制的TFRC拥塞控制策略,它不仅考虑到了差错误码,切换、连接中断引起的丢包对传输的影响,而且还考虑到了实际的链路本身的差错控制导致的乱序包对算法性能的影响,解决了TFRC算法在Ad hoc网络中因不能正确区分拥塞丢包和误码丢包而造成性能下降的问题,改善了TFRC在Ad hoc网络中的性能。仿真结果表明改进协议的性能优于TFRC。TFRC protocol is not suitable as a result of Ad hoc network environment, this will limit the TFRC protocol in the actual network. TFRC protocol for Ad hoc network problems, TFRC algorithm in this paper based on the distinction between a mechanism based on packet loss TFRC Congestion Control Strategy, which not only takes into account the errors in error, switch to connect the packet loss caused by interruption the impact of transmission, but also takes into account the actual link itself, lead to the error control of out-of-order packets on the impact of algorithm to solve the TFRC algorithm in Ad hoc network congestion because they can not correctly distinguish between packet loss and packet loss and bit error performance degradation caused by the problem. Well overcome the shortcoming of TFRC, TFRC has improved in the Ad hoc network performance. The simulation results show that the performance of the agreement is better than TFRC.

关 键 词：无线网络 TFRC协议 AD HOC网络 丢包率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]