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Distributed Data Aggregation in Multi-sink Sensor Networks Using a Graph Coloring Algorithm

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2 Author(s)
Kawano, R. ; Univ. of Aizu, Fukushima ; Miyazaki, T.

In this paper, we propose an algorithm to minimize the multihop route from each sensor node to a sink node in wireless sensor networks with multiple sink nodes. In addition to solving the shortest path problem, the algorithm solves a time slot problem to support TDMA (time division multiple access) communication. TDMA is effective for avoiding packet collisions; however, the time slot allocation itself is a difficult problem to solve. We introduce a distributed coloring algorithm to solve it. After describing the algorithm, some experimental results proving its effectiveness are presented.

Published in:

Advanced Information Networking and Applications - Workshops, 2008. AINAW 2008. 22nd International Conference on

Date of Conference:

25-28 March 2008