PARO: Conserving power in wireless ad-hoc networks

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Introduction

A reduction in the power consumption increases the operational lifetime of network enabled devices. Especially for small computing and communication devices with built-in or attached radios reducing the transmission power may extend operational lifetime.


What is PARO?

PARO is a power-aware routing technique for wireless ad hoc networks where all nodes are located within the maximum transmission range of each other.

PARO uses a packet forwarding technique where immediate nodes can elect to become redirectors on behalf of source-destination pairs.

As the required transmission power to communicate between any source and destination node is not proportional to the distance of them adding multiple intermediate redirectors may result in an overall lower power consumption compared to the direct communication.

PARO in comparison to other MANET routing techniques

PARO's approach is in direct contrast to existing MANET routing protocols:

  • MANET protocols try to minimize the amount of hops therefore wasting power
  • MANET routing protocols are not suitable for discovering optimal power-aware routes in wireless ad hoc networks
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