End to end improvement of TCP Vegas over Mobile Ad Hoc Networks
Yang Zhang · Computer Engineering and Applications Journal · 2007
TCP Vegas's congestion control is based on the minimum value of the round-trip-time calls baseRTT,so it's important to get the accurate baseRTT.However,in MANET,the regularly changing route caused by the constant node movement leads to a bad baseRTT evaluation.As a result of this inaccurate baseRTT value,TCP's performance degrades a lot.However,the existing end-to-end detection methods can not tell the route change when neither timeout nor out of order phenomenon occurred.In this paper,we try to use descend detection method to detect the route change,so we can adjust the baseRTT to the right value and advance the throughput of TCP Vegas in MANET.