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Group mobility is prevalent in many MANET applications, such as disaster recovery, military actions, etc., and group partitions are unavoidable under such dynamic network. Group partitioning may result in frequent link disconnections, which hence affects the inter-group communication. In this paper, we introduce a framework for predicting potential group partitions in MANETs such that remedial actions...
This paper proposes a distributed group mobility adaptive (DGMA) clustering algorithm for mobile ad hoc networks (MANETs) on the basis of a revised group mobility metric, spatial dependency, which is derived from the linear distance of a node's movement instead of its instantaneous speed and direction. In particular, it is suitable for reflecting group mobility pattern where group partitions and mergence...
Heterogeneous wireless networks (HWNs) are gaining popularity due to its convenience for mobile users to be connected to the network even when "on the move". Group key agreement (GKA) protocols are used to secure group communications in these networks. However, most of the GKA protocols in current literature do not consider protection against denial-of-service (DoS) attacks that can disrupt...
Wireless sensor networks have been receiving increasing attention in recent years due to their potential applications in the establishment of dynamic communications for emergency/rescue operations, disaster relief efforts, and military networks. In this paper, we investigate the problem of grouping the sensor nodes into clusters to enhance the overall scalability of the network. A selected set of...
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