Game Theory As A Tool To Strategize As Well As Predict Nodes Behavior In Peer-to-Peer Networks

Authors:
Rohit Gupta;Arun K. Somani
Affiliations:
Dependable Computing and Networking Laboratory Department of Electrical and Computer Engineering;Dependable Computing and Networking Laboratory Department of Electrical and Computer Engineering
Venue:
ICPADS '05 Proceedings of the 11th International Conference on Parallel and Distributed Systems - Volume 01
Year:
2005

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Abstract

Abstract-In this paper we use game theory to study nodes驴 behavior in peer-to-peer networks when nodes receive service based on their reputation. Reputation is used as a mechanism to incentivize nodes to share resources and provide services to others. The probability of a node obtaining service is directly proportional to its current reputation, and the only way to enhance reputation is by serving others. Thus, the problem of free-riding is minimized. Game theory can be used by individual selfish nodes to determine their optimal strategy for participation level in such a system. Moreover, game theory gives us interesting insight into the overall nature of nodes驴 interactions and system efficiency, and how system efficiency can be improved.