Observation-based Cooperation Enforcement in Ad Hoc Networks

By Sorav Bansal, Mary Baker. arXiv.org, 2003

479 citations recorded by the source corpus.

Ad hoc networks rely on the cooperation of the nodes participating in the network to forward packets for each other. A node may decide not to cooperate to save its resources while still using the network to relay its traffic. If too many nodes exhibit this behavior, network performance degrades and cooperating nodes may find themselves unfairly loaded. Most previous efforts to counter this behavior have relied on further cooperation between nodes to exchange reputation information about other nodes. If a node observes another node not participating correctly, it reports this observation to other nodes who then take action to avoid being affected and potentially punish the bad node by refusing to forward its traffic. Unfortunately, such second-hand reputation information is subject to false accusations and requires maintaining trust relationships with other nodes. The objective of OCEAN is to avoid this trust-management machinery and see how far we can get simply by using direct first-hand observations of other nodes' behavior. We find that, in many scenarios, OCEAN can do as well as, or even better than, schemes requiring second-hand reputation exchanges. This encouraging result could possibly help obviate solutions requiring trust-management for some contexts.

Subfields: Computer Networks and Communications

View Paper: https://www.semanticscholar.org/paper/3c8cdace2ec15b865aafdbb387b3bf39e81c0a15

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In Computer Networks and Communications

Citations in the corpus

A Survey of Attacks and Countermeasures in Mobile Ad Hoc Networks (2007, unknown): “Buchegger’s CONFIDANT [41], Michiard’s CORE [60], and S.Bansel’s OCEAN [ 61 ] are reputation-based schemes.”
A Survey on Intrusion Detection in Mobile Ad Hoc Networks (2007, methodology): “Two techniques were proposed by Marti, Giuli, and Baker [5], watchdog and pathrater, to be added on top of the standard routing protocol in ad hoc networks.”