The existing wireless mesh network (WMN) security monitoring methods do not consider the resource constraint of the nodes in WMN, so they are not practical. Centralized and distributed intrusion detection algorithms are proposed based on the link complete coverage. The security of each link is maintained by base station in centralized intrusion detection algorithm, and the genetic algorithm is used to find the optimized solution of the problem of link complete coverage, so the detection rate is improved; IDS is adaptively distributed into the nodes with enough remaining resource based on the prediction machinery of the resource cost, so the resource cost of each node is balanced. Simulation experiments results show that the proposed two methods are of better security in single hop intrusion attack, multi-hop intrusion attack, and compromised attack.
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