An efficient reputation-based system for wireless ad hoc networks

Gang Peng, Sammy Chan, Xueyuan Su

Research output: Journal article publicationJournal articleAcademic researchpeer-review


Consider multi-path routing and forwarding scenarios in wireless ad hoc networks. Selfish and malicious nodes both might deviate from the protocol. However, their intentions and behaviours are different. To extend our previous work on generalised second price auction for stimulating selfish nodes for cooperation, we propose a reputation-based mechanism to cope with malicious behaviours. The core of our mechanism is a decentralised reputation system. Based on available evidence, each node relies on Bayesian inference to internally update its reputation beliefs that how reliable each other node is. Instead of relying on the commonly used passive overhearing technique, 'watchdog', our proposed mechanism requires each source node to actively trigger the detection process to collect evidence towards malicious behaviours. In addition, our mechanism includes a flocking algorithm to allow careful dissemination of reputation information and thus shortens the misbehaviour detection time..
Original languageEnglish
Pages (from-to)196-210
Number of pages15
JournalInternational Journal of Autonomous and Adaptive Communications Systems
Issue number3
Publication statusPublished - 1 Jan 2014
Externally publishedYes


  • Bayesian inference
  • Flocking algorithm.
  • Reputation system
  • Wireless ad hoc networks

ASJC Scopus subject areas

  • General Computer Science
  • Electrical and Electronic Engineering


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