A sensor network for surveillance of disaster-hit region
ISWPC'09 Proceedings of the 4th international conference on Wireless pervasive computing
Bounded delay transmission of different traffic classes in wireless sensor networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
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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.