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When Both Transmitting and Receiving Energies Matter: An Application of Network Coding in Wireless Body Area Networks

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6827)

Abstract

A network coding scheme for practical implementations of wireless body area networks is presented, with the objective of providing reliability under low-energy constraints. We propose a simple network layer protocol for star networks, adapting redundancy based on both transmission and reception energies for data and control packets, as well as channel conditions. Our numerical results show that even for small networks, the amount of energy reduction achievable can range from 29% to 87%, as the receiving energy per control packet increases from equal to much larger than the transmitting energy per data packet. The achievable gains increase as a) more nodes are added to the network, and/or b) the channels seen by different sensor nodes become more asymmetric.

Keywords

wireless body area networks network coding medium access control energy efficiency 

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Copyright information

© IFIP International Federation for Information Processing 2011

Authors and Affiliations

  1. 1.Massachusetts Institute of TechnologyCambridgeUSA
  2. 2.Instituto de Telecomunicações, DEEC Faculdade de EngenhariaUniversidade do PortoPortugal

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