JRGP: Jamming resilient geocasting protocol for mobile tactical ad hoc networks

Jamming attack by adversaries is the critical threat in Network Centric Warfare that uses tactical wireless networks. Thus research on developing new networking protocols that are resilient to such attacks are of high importance. Geocasting is a prominent routing mechanism in tactical networks to send critical messages such as alarm about chemical attack, guerrilla detection etc, to the nodes within a specific geographical region. To apply geocast protocols in the tactical environment, it should provide assurance that the packet delivery is reliable despite of jamming attacks. In this paper, we propose two jamming resilient geocasting schemes for tactical mobile ad hoc networks. Our first scheme called the “Failure-Based Learning” in which the sender nodes are not aware of the jamming attacks and try to send packets repeatedly. This method is enhanced by another scheme called “Detour by Anchor Point” with information about the jamming attack which sent to the source node, such that it can proactively avoid the jamming region for successful packet delivery. The simulation results show that our proposed schemes significantly outperform single and dual path geocasting protocols under jamming attack and mobile scenarios.