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In this work we proposed a novel heterogeneity-aware group key management framework (HAGK) for wireless mesh networks (WMNs). In our framework a WMN multicast session involves both stationary backbone nodes and mobile client nodes: for backbone nodes which are topologically-stable but may spread over a large area, the distributed thresholdbased group key management technique is applied; for client nodes associated with each backbone node which are mobile but confined in a limited area, thedoi:10.1145/1460877.1460918 dblp:conf/securecomm/WangW008 fatcat:tmxwrjrqkvbcbghfczzaljtbj4