多路径TCP
计算机网络
计算机科学
TCP调整
网络拥塞
传输控制协议
多径传播
TCP友好的速率控制
数据包丢失
TCP Westwood plus
网络数据包
TCP全局同步
无线
稳健性(进化)
TCP加速
无线链路协议
无线网络
实时计算
频道(广播)
电信
基因
生物化学
化学
作者
Pingping Dong,Jianxin Wang,Jiawei Huang,Haodong Wang,Geyong Min
标识
DOI:10.1109/tcomm.2016.2584615
摘要
Multipath transmission control protocol (MPTCP) allows a TCP connection to operate across multiple paths simultaneously and becomes highly attractive to support the emerging mobile devices with various radio interfaces and to improve resource utilization as well as connection robustness. The existing multipath congestion control algorithms, however, are mainly loss-based and prefer the paths with lower drop rates, leading to severe performance degradation in wireless communication systems, where random packet losses occur frequently. To address this challenge and improve the performance of MPTCP in wireless networks, this paper proposes a new mVeno algorithm, which makes full use of the congestion information of all the subflows belonging to a TCP connection in order to adaptively adjust the transmission rate of each subflow. Specifically, mVeno modifies the additive increase phase of Veno so as to effectively couple all subflows by dynamically varying the congestion window increment based on the receiving ACKs. The weighted parameter of each subflow for tuning the congestion window is determined by distinguishing packet losses caused by random error of wireless links or by network congestion. We implement mVeno in a Linux server and conduct extensive experiments both in test bed and in real WAN to validate its effectiveness. The performance results demonstrate that compared with the existing schemes, mVeno increases the throughput significantly, achieves load balancing, and can keep the fairness with regular TCP.
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