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Network wide broadcasting is an energy intensive function. In this paper, the authors propose a new method that performs transmission power adaptations based on information available locally, to reduce the overall energy consumed per broadcast. In most of the prior work on energy efficient broadcasting it is assumed that the originator of the broadcast has global network information (both topology information as well as the geographical distance between nodes). This can be prohibitive in terms of the consumed overhead. In their protocol, each node attempts to tune its transmit power based on local information (of up to two hops from the transmitting node). They perform extensive simulations to evaluate their protocol.
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