Transport Congestion Protocol Based on Congestion-probabity Prediction over Wired/Wireless Hybird Networks
Ye Jin, Wang Jian-xin · Journal of Chinese Computer Systems · 2008
To decouple congestion control from corruption control is necessary for TCP enhancement over wired-cum-wireless networks.There are dropping events,explicit congestion notice or round trip time etc.that trigger congestion control.While these methods are weak in loss differentiation,and result in error losses misinterface congestion control action.This paper proposed a new scheme called PceReno,in which sender make prediction on probability of congestion or error by ECN marks and act correctly.This new scheme combine reactive feedback and proactive avoidance without extra cost,because it depends on orginal congestion control scheme.Simulate result show that PceReno is immune to lossy links,and the throughput of connection over hybrid networks can be significantly improved.