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cTrust: Trust Aggregation in Cyclic Mobile Ad Hoc Networks

  • Huanyu Zhao
  • Xin Yang
  • Xiaolin Li
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6272)

Abstract

In a Cyclic Mobile Ad Hoc Network (CMANET) where nodes move cyclically, we formulate trust management problems and propose the cTrust scheme to handle trust establishment and aggregation issues. Unlike trust management in conventional peer-to-peer (P2P) systems, trust management in MANETs is based on simple neighbor trust relationships and also location and time dependent. In this paper, we focus on trust management problem in highly mobility environment. We model trust relations as a trust graph in CMANET to enhance accuracy and efficiency of trust establishment among peers. Leveraging a stochastic distributed Bellman-Ford based algorithm for fast and lightweight aggregation of trust scores, the cTrust scheme is a decentralized and self-configurable trust aggregation scheme. We use the NUS student contact patterns derived from campus schedules as our CMANET communication model. The analysis and simulation results demonstrate the efficiency, accuracy, scalability of the cTrust scheme. With increasing scales of ad hoc networks and complexities of trust topologies, cTrust scales well with marginal overheads.

Keywords

Markov Decision Process Reputation System Message Overhead Direct Trust Trust Graph 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Huanyu Zhao
    • 1
  • Xin Yang
    • 1
  • Xiaolin Li
    • 1
  1. 1.Scalable Software Systems Laboratory, Department of Computer ScienceOklahoma State UniversityStillwaterUSA

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