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Open Access Publications from the University of California

Studying the Feasibility of Energy Harvesting in a Mobile Sensor Network

  • Author(s): Rahimi, Mohammed;
  • Shah, Hardik;
  • Sukhatme, Gaurav;
  • Heidemann, John;
  • Estrin, D
  • et al.
Abstract

We study the feasibility of extending the lifetime of a wireless sensor network by exploiting mobility. In our system, a small percentage of network nodes are autonomously mobile, allowing them to move in search of energy, recharge, and delivery energy to immobile, energy-depleted nodes. We term this approach energy harvesting. We characterize the problem of uneven energy consumption, suggest energy harvesting as a possible solution, and provide a simple analytical framework to evaluate energy consumption and our scheme. Data from initial feasibility experiments using energy harvesting show promising results.

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