Energy consumption of TCP in ad hoc networks

  • Authors:
  • H. Singh;S. Saxena;S. Singh

  • Affiliations:
  • Department of Computer Science, Portland State University, Portland, OR;Department of Computer Science, Portland State University, Portland, OR;Department of Computer Science, Portland State University, Portland, OR

  • Venue:
  • Wireless Networks
  • Year:
  • 2004

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Abstract

In this paper we study the energy cost (protocol processing and communication cost) and goodput of different flavors of TCP (Transmission Control Protocol) in ad hoc networks. We implemented a testbed and measured the actual energy cost as well as goodput of running TCP Reno, Newreno, SACK (Selective ACKnowledgement) and a version that combines Explicit Link Failure Notification (ELFN) [7] and Explicit Congestion Notification (ECN) [5] in Newreno. We see that the use of ECN & ELFN does yield higher goodput in most cases with a corresponding lower total energy cost. We see an energy savings of between 20% and 500% depending on the network conditions.