Multicluster, mobile, multimedia radio network
Wireless Networks
Mobility prediction and routing in ad hoc wireless networks
International Journal of Network Management
WCA: A Weighted Clustering Algorithm for Mobile Ad Hoc Networks
Cluster Computing
An Efficient Energy Aware Clusterhead Formation Infrastructure Protocol for MANETs
ISCC '03 Proceedings of the Eighth IEEE International Symposium on Computers and Communications
Distributed Clustering for Ad Hoc Networks
ISPAN '99 Proceedings of the 1999 International Symposium on Parallel Architectures, Algorithms and Networks
Distributed construction of connected dominating set in wireless ad hoc networks
Mobile Networks and Applications - Discrete algorithms and methods for mobile computing and communications
A survey of clustering schemes for mobile ad hoc networks
IEEE Communications Surveys & Tutorials
Multiagent based information dissemination in vehicular ad hoc networks
Mobile Information Systems
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In most MANET clustering protocols, the clusterhead nodes take on a special role in managing routing information. However, the frequent changes of the clusterheads affect the performance of all the protocols that rely on it. Due to the dynamic nature of the mobile nodes, their association and disassociation to and from clusters perturb the stability of the network and the problem becomes worse if these nodes are clusterheads. Eventually, the clustering stability in MANET would be significantly affected. To enhance the network stability, in this paper we introduce a new approach to reform the cluster, namely the Smooth and Efficient Re-Clustering (SERC) protocol. This approach is based on providing a secondary clusterhead (SCH) for each clusterhead which we call here primary clusterhead (PCH). This SCH, which is a regular member node, is identified and assigned by its PCH to be the future leader of the cluster. The SCH will be triggered to be the PCH when the former PCH can no longer be a clusterhead. Since the future clusterhead is known by the cluster members, the cluster leadership will be transferred smoothly and the cluster will be reformed immediately with no need to invoke the clustering algorithm. Also, since the member nodes are associated with the cluster with its subsequent clusterheads, the cluster looks stable to the other clusters. Hence, the smooth clusterhead transfer from a node to another aims at increasing the cluster residence time, which will sustain the stability of the network, decrease the clustering communication overhead and, minimize the time spent by each node to join or to reform a cluster.