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Because of nodes mobility, one of important and fundamental issues in mobile sensor networks is how to cluster the nodes in network. The clustering is a method for best managing nodes energies, data collecting and sending information to base station and increasing network lifetime. In a wireless mobile network, the created clusters change continually and the nodes move from one cluster to another,...
Wireless Sensor Networks (WSN), consisting of a large number of sensor nodes connected through wireless medium has emerged as a ground-breaking technology that offers the unprecedented ability to monitor the physical world accurately. Because of resource-constrained nature of sensor nodes, a number of issues have emerged out of which energy-efficiency is an important matter of concern. In this work,...
Energy efficiency is of great importance for the wireless sensor network (WSN). A popular way to save energy is to construct clusters for data aggregation and forwarding. This paper studies the distributed cluster algorithm to improve the energy consumption efficiency. We observe that the cluster head has to lie within the transmission range of the base station (sink node) and the distance between...
A reliable and efficient clustering algorithm in wireless sensor networks is proposed, which can allow the structured representation of a network topology. According to the residual energy, number of the neighbors, and centrality of each node, the algorithm uses fuzzy petri nets to select cluster head. The algorithm not only balances the energy load of each node, but also provides global reliability...
Wireless sensor networks are simple, high speed and inexpensive networks that include large number of sensors. These networks are able to monitor a parameter where the coverage is impossible via wired networks. Since clustering improves energy consumption, clustering algorithms aim at this improvement. In this paper, an energy efficient algorithm entitled EECDP (energy efficient clustering with direct...
In this paper, we propose a new routing algorithm which can increase the network lifetime. We assume that each node can estimate its residual energy and then a new clustering method will be proposed for increase of network lifetime. This assumption is similar to many other proposed routing algorithms for WSN and is a possible assumption. In the new method, the predefined number of nodes which have...
In this paper, we study the cooperative data transmissions in distributed wireless sensor networks (WSNs) based on the grid cluster model. We propose a cooperative data transmission scheme by neighboring cluster head. We assume that the nodes are clustered through cluster-based routing protocol and the cluster head is selected in WSNs. The source node transmits data to base station (BS) or sink node...
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