Correlated Data Gathering on Dynamic Network Coding Policy and Opportunistic Routing in Wireless Sensor Network

This paper studies the problem of correlated data gathering in wireless sensor networks. For a maximum network utility, an efficient data capture and transmission framework is proposed for correlated sources, where localized S-W source coding, network coding based flow control and opportunistic routing are jointly optimized. To increase the throughput and guarantee the decodability simultaneously, a dynamic network coding strategy is proposed, with which the intermediate node can easily decide whether to make a combination among the incoming flows. Also, an opportunistic routing approach is presented, which adopts a new metric (minimum congestion price) for forwarding node selection and results in a maximum utility benefit for the sensor nodes.

Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: Apr 2011 Format: PDF

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