Distributed TCP Caching for Wireless Sensor Networks

Dunkels, Adam and Alonso, Juan and Voigt, Thiemo and Ritter, Hartmut (2004) Distributed TCP Caching for Wireless Sensor Networks. [SICS Report]



Previous research on transport layer protocols for wireless sensor networks (WSNs) has focused on designing protocols specifically targeted for sensor networks. Most sensor networks applications, however, are only useful when connected to an external network. The deployment of TCP/IP in WSNs would enable direct connection between the WSN and external TCP/IP networks. However, TCP performs badly in wireless environments both in terms of throughput and energy efficiency. To overcome these problems in WSNs we have designed Distributed TCP Caching. This mechanism greatly enhances TCP performance by caching TCP segments on the nodes in the sensor network and locally retransmitting lost segments. Our simulations demonstrate that with these enhancements TCP performs well enough to be useful in wireless sensor networks.

Item Type:SICS Report
Uncontrolled Keywords:sensor networks, reliable transport protocol, TCP
ID Code:2344
Deposited By:Vicki Carleson
Deposited On:25 Oct 2007
Last Modified:18 Nov 2009 16:06

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