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Improving the energy balance of field-based routing in wireless sensor networks

Goce Trajcevski; Oliviu Ghica; Peter Scheuermann; Marco Zuniga; Rene Schubotz; Manfred Hauswirth
In: Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE. Global Telecommunications Conference, Pages 1-5, IEEE, 2010.


For high-density networks, several studies have proposed field-based routing paradigms to uniformly distribute the traffic load throughout the network. However, as network density decreases, we observe major shortcomings of the current state-of-the-art: (i) fewer number of neighbors reduce the number of available paths and leads to path merging and (ii) the paths directed towards the border of the network merge into a single path. These path merging effects decrease significantly the energy balance, and as consequence, the lifetime of the network. In this paper, we propose a novel mechanism to enable a better load balancing for single-source and multiple-source scenarios. Our evaluations demonstrate that by using the proposed methodology, the network lifetime can be prolonged between 30% and 40%.

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