Critical nodes detection in mobile ad hoc network

Large numbers of applications and technical mechanisms in wireless ad hoc networks requiring that the network is connected, so critical nodes, whose removal will disconnect the network into two or more separate components, will play an important role in wireless ad hoc networks. In this paper, a novel critical node detection algorithm-DMCC (detection algorithm based on midpoint coverage circle ) is presented. DMCC is a distributed algorithm which adapts the dynamic topology adaptively, detects the critical node faster and more reliably, and decreases the detection overheads efficiently.