A Comparative Study on Responding Methods for TCP’s Fast Recovery in Wireless Networks
When TCP operates in wireless networks, it suffers severe performance degradation because TCP’s fast retransmit/fast recovery (FR/FR) is often triggered regardless of congestion when a packet is lost due to wireless transmission errors. Although several loss differentiation schemes have been proposed to distinguish the cause of triggered FR/FRs, there has been a little try to find out an appropriate responding method to utilize the detection information of a LDA. In this paper, we observe the relationship between a responding method and TCP’s performance, and investigate the best way to respond to the FR/FRs non-related to congestion in order to improve TCP’s performance to the max. Our experiment results emphasize the importance of the responding method, which is overlooked in previous works, and suggest the best response for the FR/FRs non-related to congestion.
KeywordsPacket Loss Packet Loss Rate Round Trip Time Transport Control Protocol Congestion Avoidance
Unable to display preview. Download preview PDF.
- 1.Allman, M., Paxson, V., Stevens, W.: Tcp congestion control. RFC 2581 (1999)Google Scholar
- 4.Fu, Z., Zerfos, P., Luo, H., Lu, S., Zhang, L., Gerla, M.: The impact of multihop wireless channel on tcp throughput and loss, pp. 1744–1753 (2003)Google Scholar
- 6.Park, M., Chung, S., Sreekumari, P.: End-to-end loss differentiation algorithm based on estimation of queue usage in multi-hop wireless networks, vol. E92-D(10), pp. 2082–2093 (October 2009)Google Scholar
- 7.Park, M.Y., Chung, S.H.: Analyzing effect of loss differentiation algorithms on improving tcp performance. In: Proceedings of the 12th International Conference on Advanced Communication Technology, ICACT 2010, pp. 737–742. IEEE Press, Piscataway (2010)Google Scholar
- 8.Postel, J.: Transmission control protocol. RFC 793 (1981)Google Scholar