摘要
ＴＣＰ是利用接收端返回的确认信息调整发送端数据发送的传输层协议．在非对称信道存在的网络中， 当传输确认信息的信道带宽远小于传输数据的信道带宽， 确认信息的传输速率小于数据包的传输速率时， ＴＣＰ数据传输的吞吐量受到确认信息返回速率的限制．经过分析发现， 非对称信道上产生的问题主要是由于信道对确认包的“瓶颈”而引起的．本文以此为出发点， 从减少确认信息返回的数量和频率方面， 对ＴＣＰ的接收端和发送端算法进行改进，
TCP is a transport layer protocol that regulate its forward data sending through reverse ACKs.In asymmetric network where the bandwidth of reverse link is far less than forward link and the link rate of ACKs is slower than data, TCP data throughput is greatly limited by the reverse limk.The main reason for this limitation arisen is the bottleneck of ACKs in the reverse link.Serving this as the starting point, this paper presents algorithms to decrease the number of ACKs and to reduce ACK frequency as solutions.These improving algorithms may be implemented in both sender and receiver.We also tested them through simulations.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
1999年第4期60-64,共5页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金重大课题资助项目!(69896240)
