Optimal topologies for wireless sensor networks

Jason C. Tillett; Shanchieh Jay Yang; Raghuveer M. Rao; Ferat Sahin

doi:10.1117/12.578518

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30 November 2004 Optimal topologies for wireless sensor networks

Jason C. Tillett, Shanchieh Jay Yang, Raghuveer M. Rao, Ferat Sahin

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Proceedings Volume 5611, Unmanned/Unattended Sensors and Sensor Networks; (2004) https://doi.org/10.1117/12.578518
Event: European Symposium on Optics and Photonics for Defence and Security, 2004, London, United Kingdom

Abstract

Since untethered sensor nodes operate on battery, and because they must communicate through a multi-hop network, it is vital to optimally configure the transmit power of the nodes both to conserve power and optimize spatial reuse of a shared channel. Current topology control algorithms try to minimize radio power while ensuring connectivity of the network. We propose that another important metric for a sensor network topology will involve consideration of hidden nodes and asymmetric links. Minimizing the number of hidden nodes and asymmetric links at the expense of increasing the transmit power of a subset of the nodes may in fact increase the longevity of the sensor network. In this paper we explore a distributed evolutionary approach to optimizing this new metric. Inspiration from the Particle Swarm Optimization technique motivates a distributed version of the algorithm. We generate topologies with fewer hidden nodes and asymmetric links than a comparable algorithm and present some results that indicate that our topologies deliver more data and last longer.

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Jason C. Tillett, Shanchieh Jay Yang, Raghuveer M. Rao, and Ferat Sahin "Optimal topologies for wireless sensor networks", Proc. SPIE 5611, Unmanned/Unattended Sensors and Sensor Networks, (30 November 2004); https://doi.org/10.1117/12.578518

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