Joint mobility and routing for lifetime elongation in wireless sensor networks

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Joint mobility and routing for lifetime elongation in wireless sensor networks

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by Jun Luo , Jean-pierre Hubaux

Venue:	In Proceedijngs of IEEE INFOCOM
Citations:	162 - 9 self

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@INPROCEEDINGS{Luo_jointmobility,
    author = {Jun Luo and Jean-pierre Hubaux},
    title = {Joint mobility and routing for lifetime elongation in wireless sensor networks},
    booktitle = {In Proceedijngs of IEEE INFOCOM},
    year = {},
    pages = {1735--1746}
}

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Abstract

Abstract — Although many energy efficient/conserving routing protocols have been proposed for wireless sensor networks, the concentration of data traffic towards a small number of base stations remains a major threat to the network lifetime. The main reason is that the sensor nodes located near a base station have to relay data for a large part of the network and thus deplete their batteries very quickly. The solution we propose in this paper suggests that the base station be mobile; in this way, the nodes located close to it change over time. Data collection protocols can then be optimized by taking both base station mobility and multi-hop routing into account. We first study the former, and conclude that the best mobility strategy consists in following the periphery of the network (we assume that the sensors are deployed within a circle). We then consider jointly mobility and routing algorithms in this case, and show that a better routing strategy uses a combination of round routes and short paths. We provide a detailed analytical model for each of our statements, and corroborate it with simulation results. We show that the obtained improvement in terms of network lifetime is in the order of 500%.

Keyphrases

wireless sensor network lifetime elongation base station joint mobility network lifetime short path major threat mobility strategy data collection protocol small number base station mobility obtained improvement sensor node routing protocol routing strategy round route large part detailed analytical model simulation result main reason many energy multi-hop routing data traffic

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