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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。
Since TFRC protocol is not suitable for Ad hoc network environment, this will limit the application of TFRC protocol in Ad hoc networks. Aiming at the existing problems of TFRC protocol in Ad hoc networks, a TFRC congestion control strategy based on TFRC algorithm is proposed based on TFRC algorithm. It not only considers error errors, handover, packet loss caused by connection interruption But also considers the impact of the actual sequence itself caused by the error control packet chaos on the performance of the algorithm to solve the TFRC algorithm in the Ad hoc network because it can not correctly distinguish between the congestion loss and error packet loss Resulting in performance degradation, improving the performance of TFRC in Ad hoc networks. The simulation results show that the performance of the improved protocol is better than that of TFRC.