Authentication protocols for ad hoc networks: taxonomy and research issues
Proceedings of the 1st ACM international workshop on Quality of service & security in wireless and mobile networks
Achieving cooperation in multihop wireless networks of selfish nodes
GameNets '06 Proceeding from the 2006 workshop on Game theory for communications and networks
DARWIN: distributed and adaptive reputation mechanism for wireless ad-hoc networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Cooperative packet relaying model for wireless ad hoc networks
Proceedings of the 1st ACM international workshop on Foundations of wireless ad hoc and sensor networking and computing
Optimal forwarding for wireless ad hoc networks with game theory
International Journal of Autonomous and Adaptive Communications Systems
Game theoretic packet relaying model for wireless ad hoc networks
International Journal of Communication Networks and Distributed Systems
A trust model based on fuzzy recommendation for mobile ad-hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Multimodal security enforcement framework for wireless ad hoc networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
COFFEE: a context-free protocol for stimulating data forwarding in wireless ad hoc networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Cooperation in ad hoc networks with noisy channels
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Impact of a simple load balancing approach and an incentive-based scheme on MANET performance
Journal of Parallel and Distributed Computing
NTMS'09 Proceedings of the 3rd international conference on New technologies, mobility and security
Cooperative strategy by Stackelberg games under energy constraint in multi-hop relay networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Comparison of access control methods in mobile as-hoc networks
IMSAA'09 Proceedings of the 3rd IEEE international conference on Internet multimedia services architecture and applications
An efficient reputation-based mechanism to enforce cooperation in MANETs
CIT'10 Proceedings of the 4th international conference on Communications and information technology
A novel reputation computation model based on subjective logic for mobile ad hoc networks
Future Generation Computer Systems
Impact analysis of JellyFish attack on TCP-based mobile ad-hoc networks
Proceedings of the 6th International Conference on Security of Information and Networks
The Impact of Cooperative Nodes on the Performance of Vehicular Delay-Tolerant Networks
Mobile Networks and Applications
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For ad hoc networks to realize their potential in commercial deployments, it is important that they incorporate adequate security measures. Selfish behavior of autonomous network nodes could greatly disrupt network operation. Such behavior should be discouraged, detected, and isolated. In this paper, we propose a reputation-based mechanism to detect and isolate selfish nodes in an ad hoc network. The proposed mechanism allows a node to autonomously evaluate the "reputation" of its neighbors based on the completion of the requested service. The underlying principle is that when a node forwards a packet through one of its neighbors, it holds that neighbor responsible for the correct delivery of the packet to the destination. Our mechanism is efficient and immune to node collusion since, unlike most contemporary mechanisms for reputation-based trust, it does not depend on exchanging reputation information among nodes. We also explore various reputation functions and report on their effectiveness in isolating selfish nodes and reducing false positives. Our simulation results demonstrate that the choice of the reputation function greatly impacts performance and that the proposed mechanism, with a carefully selected function, is successful in isolating selfish nodes while maintaining false positives at a reasonably low level.