Joint power control, scheduling and routing for multihop energy harvesting sensor networks

  • Authors:
  • Vinay Joseph;Vinod Sharma;Utpal Mukherji

  • Affiliations:
  • Indian Institute of Science, Bangalore, India;Indian Institute of Science, Bangalore, India;Indian Institute of Science, Bangalore, India

  • Venue:
  • Proceedings of the 4th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
  • Year:
  • 2009

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Abstract

We study wireless multihop energy harvesting sensor net works employed for random field estimation. The sensors sense the random field and generate data that is to be sent to a fusion node for estimation. Each sensor has an energy harvesting source and can operate in two modes: Wake and Sleep. We consider the problem of obtaining jointly optimal power control, routing and scheduling policies that ensure a fair utilization of network resources. This problem has a high computational complexity. Therefore, we develop a computationally efficient suboptimal approach to obtain good solutions to this problem. We study the optimal solution and performance of the suboptimal approach through some numerical examples.