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WTCP: A Reliable Transport Protocol for Wireless Wide-Area Networks (1999) [120 citations — 13 self]

by Prasun Sinha ,  Narayanan Venkitaraman ,  Raghupathy Sivakumar ,  Vaduvur Bharghavan
In Proceedings of ACM MOBICOM
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Abstract:

Wireless wide-area networks (WWANs) are characterized by very low and variable bandwidths, very high and variable delays, significant non-congestion related loss, asymmetric uplink and downlink channels, and occasional blackouts. Additionally, the majority of the latency in a WWAN connection is incurred over the wireless link. Under such operating conditions, most contemporary wireless TCP algorithms do not perform very well. In this paper, we present WTCP, a reliable transport protocol that is designed to operate efficiently and fairly over commercial WWAN networks such as CDPD. WTCP is rate-based, uses only end-to-end mechanisms, performs rate control at the receiver, and uses inter-packet delays as the primary metric for rate control. We have implemented and evaluated WTCP over the CDPD network, and also simulated it in the ns-2 simulator. Our initial results indicate the WTCP can improve on the performance of comparable algorithms such as TCPNewReno, TCP-Vegas, and Snoop-TCP by b...

Citations

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1 Biographies Prasun Sinha received his B.Tech. in Computer Science and Engineering from IIT Delhi, India in 1995 and his MS in Computer Science from Michigan State University in 1997. Currently he is working on his PhD in the TIMELY research group in Unive – com - 1998
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