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http://dx.doi.org/10.6109/jkiice.2008.12.8.1384

An Dynamic Congestion Window Tuning Algorithm for TCP Performance Improvement in Wireless Ad-hoc Network  

Kim, Kwan-Woong (원광대학교 전기전자정보공학부)
Bae, Sung-Hwan (한려대학교 멀티미디어정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.8, 2008 , pp. 1384-1390 More about this Journal
Abstract
The TCP protocol is originally designed for wired network, however it performs very poor in wireless network due to different nature of wireless network from wired networks. In terms of TCP performance improvement in wireless Ad-hoc network, many researches show that small congestion window size of TCP connection can improve TCP performance. We propose a new TCP algorithm to improve TCP performance in wireless Ad-hoc network. The basic idea of our approach is that TCP receiver estimates the optimum window size and then sets congestion window limit of TCP sender to an optimum value by using the advertised window field in TCP ACK packet. From extensive computer simulation, the proposed algorithm shows superior performance than traditional TCP protocols in terms of packet delivery ratio and packet loss.
Keywords
TCP; Congestion control; MANET(Mobile Ad Hoc-NETwork);
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