A Cross-layer Scheme to Improve TCP Fairness in wireless networks
Guang Tao · Microcomputer Information · 2008
This paper focus on the improvement of TCP fairness in multi-hop wireless ad hoc networks.The reasons of TCP unfairness in ad hoc networks and the relationship between packet delay and channel utilization are analyzed.MDNRED has been proposed to improve TCP fairness.In this scheme, the MAC layer delay is used to detect congestion and to notify the nodes which use too much channel dropping their packets and giving the expressed node chance to transmit.There are four parts in this scheme, measuring MAC delay, detecting congestion, sending congestion notification and accounting drop probability.At last, the performance of MDNRED has been approved by the simulation and experiment.