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Maximum Data Gathering in Networked Sensor Systems

Author

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  • Bo Hong
  • Viktor K. Prasanna

Abstract

We focus on data gathering problems in energy-constrained networked sensor systems. We study store-and-gather problems where data are locally stored at the sensors before the data gathering starts, and continuous sensing and gathering problems that model time critical applications. We show that these problems reduce to maximization of network flow under vertex capacity constraint. This flow problem in turn reduces to a standard network flow problem. We develop a distributed and adaptive algorithm to optimize data gathering. This algorithm leads to a simple protocol that coordinates the sensor nodes in the system. Our approach provides a unified framework to study a variety of data gathering problems in networked sensor systems. The performance of the proposed method is illustrated through simulations.

Suggested Citation

  • Bo Hong & Viktor K. Prasanna, 2005. "Maximum Data Gathering in Networked Sensor Systems," International Journal of Distributed Sensor Networks, , vol. 1(1), pages 57-80, February.
    • Handle: RePEc:sae:intdis:v:1:y:2005:i:1:p:57-80
    DOI: 10.1080/15501320590901847
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