摘要
提出了一种能够通过带宽估计来判断无线链路分组丢失原因,并采取相应拥塞控制机制的无线TCP协议——TCP_LD(TCPlosedetection).采用Padhye模型的建模方法,推导了TCP_LD的稳态流量模型.理论分析和仿真结果说明,TCP_LD能够有效地区分出发生分组丢失的原因,即拥塞丢失或者链路差错丢失,提高了系统的流量,并且具备较好的公平性.
We propose an improved wireless transport control protocol-TCP__LD(TCP lose detection). Using bandwidth estimation, this scheme can distinguish the reason of packets errors, hence adopt appropriate congestion control mechanism. Based on the TCP throughput model of Padhye, an analytical model of TCP__LD steady state throughput is educed. The results show that our scheme is simple and effective for dealing with random packet loss, and can achieve significant throughput improvements without adversely affecting other concurrent TCP connections.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2005年第2期42-45,共4页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(90104018
60172052
60002009)
