Detection, penalization and handling of misbehavior in ad hoc wireless networks
Revoti Prasad Bora, Dheeraj Harihar, Saurabh Sehrawat · International MultiConference of Engineers and Computer Scientists · 2006
Devices in mobile ad hoc networks depend on the cooperation of other nodes for relaying of packets in the network. Medium Access Control protocols such as IEEE 802.11 are ecient with upper layer protocols only if the nodes adhere to the protocol and cooperate. Non-cooperating nodes may delay forwarding of frames or drop the frames altogether. This might be advantageous for individual nodes (from the point of view of saving energy) but it hampers the network as a whole. Such non-cooperating nodes disrupt communication between the cooperating nodes. We present a solution with a part modification of the IEEE 802.11 protocol to detect and penalize such non-cooperating nodes and thus making it unattractive to deny cooperation. For this we associate each node with an index, the Fairness Index, which is dynamically mapped to the behavior of the associated node. We not only penalize them but also ensure reliable routing throughout. In our scheme we also allow a convicted node to return to the mainstream if it shows its eagerness to cooperate. We prove the same using simulation results.