Gossip versus Deterministically Constrained Flooding on Small Networks
DISC '00 Proceedings of the 14th International Conference on Distributed Computing
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In the wireless embedded sensor network (WESN), a broadcast mechanism is required for flooding to embedded computers. These embedded computers or sensor nodes are energy-constrained because they are battery-powered. In this paper, we propose an energy-efficient flooding mechanism which suits well to the static WESN by designating a subset of sensor nodes in order to forward broadcast messages. When deciding forwarding nodes, we consider the connectivity to the sink and the coverage of the entire sensor network. To validate feasibility, we implement the prototype of our mechanism on TinyOS 2.0 with Mica-2 motes. Through simulations, we show that our mechanism outperforms conventional mechanisms in terms of the network lifetime and the data delivery ratio.