EFFORT: Energy-efficient opportunistic routing technology in wireless sensor networks

Michael Chien Chun Hung, Ching-Ju Lin*, Cheng Fu Chou, Chih Cheng Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The utilization of limited energy in wireless sensor networks (WSNs) is the critical concern, whereas the effectiveness of routing mechanisms substantially influence energy usage. We notice that two common issues in existing specific routing schemes for WSNs are that (i) a path may traverse through a specific set of sensors, draining out their energy quickly and (ii) packet retransmissions over unreliable links may consume energy significantly.In this paper, we develop an energy-efficient routing scheme (called EFFORT) to maximize the amount of data gathered in WSNs before the end of network lifetime. By exploiting two natural advantages of opportunistic routing, that is, the path diversity and the improvement of transmission reliability, we propose a new metric that enables each sensor to determine a suitable set of forwarders as well as their relay priorities. We then present EFFORT, a routing protocol that utilizes energy efficiently and prolongs network lifetime based on the proposed routing metric. Simulation results show that EFFORT significantly outperforms other routing protocols.

Original languageEnglish
Pages (from-to)760-773
Number of pages14
JournalWireless Communications and Mobile Computing
Volume13
Issue number8
DOIs
StatePublished - 10 Jun 2013

Keywords

  • network lifetime
  • opportunistic routing
  • wireless sensor networks

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