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Routing for Data-Collection in Heterogeneous Wireless Sensor Networks

In this paper, the authors focus on Wireless Sensor Networks (WSNs) in a more realistic setting than classical studies and previous works: they consider wireless sensor nodes having different transmission ranges according to the environment and/or to the wireless chipset. The main consequence of this heterogeneity is the existence of asymmetric links. Such links in a WSN degrade the performance of most protocols which have not been designed to benefit from this heterogeneity and to deal with asymmetric links: most often, these links are essentially pruned. They propose a routing protocol for data collection from sensors nodes to the sink node in heterogeneous WSNs.

Provided by: INRIA Topic: Mobility Date Added: Apr 2011 Format: PDF

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