Networked and Embedded Systems Laboratory

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Energy harvesting offers a promising alternative to solve the
  sustainability limitations arising from battery size constraints in
  sensor networks. Several considerations in using an environmental
  energy source are fundamentally different from using
  batteries. Rather than a limit on the total energy, harvesting
  transducers impose a limit on the instantaneous power
  available. Further, environmental energy availability is often
  highly variable and a deterministic metric such as residual battery
  capacity is not available to characterize the energy source.  The
  different nodes in a sensor network may also have different energy
  harvesting opportunities. Since the same end-user performance may be
  achieved using different workload allocations at multiple nodes, it
  is important to adapt the workload allocation to the spatio-temporal
  energy availability profile in order to enable energy-neutral
  operation of the network. This paper describes power management
  techniques for such energy harvesting sensor networks. Platform
  design considerations as well as power scaling techniques at the
  node-level and network-level are described.

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