Detection Method of Gray-Hole Node in Wireless Mesh Networks
Peng Zhou, Zhengtao Xiang, Yufeng Chen · 2013
A Gateway Based Gray Hole Detection (GBGHD) algorithm in Wireless Mesh Networks (WMN) is proposed, which utilizes the architecture character of combination of centralized control and distributed control of WMN. GBGHD algorithm makes the gateway analyze and synthesize the monitoring information collected by the wireless nodes and decrease the routing overhead by piggybacking technology without bringing additional broadcast storm. Compared with the AODV+ protocol without gray-hole detection, GBGHD algorithm can detect gray-hole nodes quickly and exclude the gray-hole node from the network, which can greatly decrease the packets dropping caused by the gray-hole node and thus improve the network performance.