NDLI: A Timestamp based Detection of fast retransmission loss for improving the performance of TCP NewReno over wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Sreekumari, P. Sang-Hwa Chung Won-Suk Kim
Copyright Year	2011
Description	Author affiliation: School of Computer Science and Engineering, Pusan National University, Busan, 609-735, South Korea (Sreekumari, P.; Sang-Hwa Chung; Won-Suk Kim)
Abstract	NewReno is the most widely deployed TCP protocol in today's internet. When NewReno operates in wireless networks, the performance of NewReno degrades significantly. Frequent retransmission timeout is one of the well-know problems of the performance degradation of TCP NewReno over wireless networks. In wireless networks, a retransmission timeout is unavoidable, when the fast retransmission of a lost packet fails to reach the destination particularly due to the changing level of congestion and bit error rate in wireless channel. There have been many schemes developed for reducing the retransmission timeouts. However, these schemes have no mechanism to detect the loss of fast retransmitted packets. In this paper, we introduce an efficient mechanism based on TCP NewReno, called T-DLRP (Timestamp based- Detection of the Loss of fast Retransmitted Packets) which is able to detect fast retransmission loss and react accordingly without waiting for retransmission timeouts even multiple loss of packets in a single window of data and the loss of its fast retransmission. T-DLRP consists of three schemes, called FRL (Fast Retransmission Loss)-Detection, FRL-Differentiation and Immediate fast recovery. Through extensive simulations using qualnet 4.5, we evaluate the performance of TDRLP and demonstrate that our mechanism achieves 40–90% performance improvement than key existing TCP schemes over wireless networks especially when the network co-existed with packet loss and retransmission losses.
Starting Page	60
Ending Page	67
File Size	820624
Page Count	8
File Format	PDF
ISBN	9781457720130
ISSN	21604886
e-ISBN	9781457720147
DOI	10.1109/WiMOB.2011.6085352
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation TCP Wireless networks Receivers Propagation losses Loss measurement Wireless Networks Internet Fast Retransmission Loss
Content Type	Text
Resource Type	Article

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