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This study introduces a geographical multi-layered clustering protocol for ad hoc wireless sensor networks (WSNs), where the size of clusters is variable so that the closer clusters to the base station (BS) have a smaller size than farther ones. Moreover, in each cluster, using some intelligent fuzzy rules and in a decentralised way, a novel sub-tree strategy is determined. In this way, some parent...
This paper proposes a novel clustering protocol which divides the overall network to virtual circles with variable radius and uses a novel approach for intra-cluster communications. In this protocol the radius of virtual circles and the size of clusters would be increased by the distance to base station (BS) and, therefore, the size of clusters are different. In each cluster, the leader nodes are...
The energy efficiency is an important issue for employ distributed wireless sensor networks in smart space and extreme environments. The cluster-based communication protocols play a considerable role for energy saving in hierarchical wireless sensor networks. In most of traditional clustering algorithms, a cluster head (CH) simultaneously serves as a relay sensor node to transmit its cluster/other...
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