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  • Authors: Portu-Repollés, E.; Beferull-Lozano, B.
  • (2009).
  • Publication types: Article
  • URL Publication: Joint Sensor Selection and Routing for Distributed Estimation in Wireless Sensor Networks
  • Abstract:

    The authors consider a Wireless Sensor Network (WSN) deployed over a large geographical area, where a querying node wishes to perform a estimation of a localized phenomenon. The authors formulate the problem as a joint optimization of sensor selection and routing structure where they minimize the estimation distortion subject to a total communication power constraint for the WSN. Two scenarios are analyzed: measurement forwarding and estimation-and-forward at the nodes. The authors show that the optimization problems corresponding to these scenarios are both NP-hard and they propose two approximation algorithms.