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Monitoring Systems White Papers

Energy-Efficient TCP Operation in Wireless Sensor Networks

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monitoring systems

Overview Many applications of wireless sensor networks require connectivity to external networks to let monitoring and controlling entities communicate with the sensors. By using the TCP/IP protocols inside the sensor network, external connectivity can be achieved anywhere in the sensor network. In such IP-based sensor networks, TCP can be used for remote management and reprogramming of sensor nodes. However, the high bit error rates in multi-hop sensor networks lead to energy-inefficiencies that reduce the lifetime of the sensor network. This paper introduces and compares two approaches to support energy-efficient operation of TCP in sensor networks: Distributed TCP Caching (DTC) and TCP Support for Sensor networks (TSS). Both concepts allow intermediate sensor nodes to cache TCP segments and to perform local retransmissions in case of errors.

Further White Paper Details
Publisher	University of Berne	File Format	PDF
Date Published	March 2005
Format	White Papers
Topics	Monitoring Systems, TCP - IP, Mobile - Wireless Communications

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