Study on TCP Performance Improvement over MANET
Liang Liang · Communications technology · 2009
TCP is originally designed for wired networks,and the TCP congestion control mechanism assumes that all packet loss is caused by congestion. This assumption is no longer applicable in MANET,because high bit error rate and movement of nodes would also cause packet loss. The TCP’s poor performance in MANET is principally due to the fact that TCP makes all non-congestion packet loss as congestion packet loss. This paper first summarizes several major causes for the decline of TCP performance in MANET,and then analyzes some popular TCP enhancement schemes. Finally,comparison of these schemes is proposed,and some new research direction for improving TCP performance in MANET are suggested.