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MOBICOM
1999
ACM

WTCP: A Reliable Transport Protocol for Wireless Wide-Area Networks

9 years 24 days ago
WTCP: A Reliable Transport Protocol for Wireless Wide-Area Networks
Wireless wide-area networks (WWANs) are characterized by very low and variable bandwidths, very high and variable delays, significant non-congestion related losses, 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 addresses rate control and reliability 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 results indicate that WTCP can improve on the performance of comparable algorithms such as TCP-NewReno, TCP-Vegas, and Snoop-TCP by between 20% t...
Prasun Sinha, Narayanan Venkitaraman, Raghupathy S
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where MOBICOM
Authors Prasun Sinha, Narayanan Venkitaraman, Raghupathy Sivakumar, Vaduvur Bharghavan
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