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Since nodes in a sensor network have limited energy, prolonging the network lifetime and improving scalability become an important issue. In clustered sensor networks, clusterheads are responsible for data fusion within each cluster and transmit the aggregated data to the remote base station. As we all know energy efficiency can be obtained by multi-hop communication. In this paper, we integrate the...
In wireless sensor networks, proposed an energy efficient routing strategy based on ant colony algorithm. The algorithm combined residual energy of nodes, and accorded to transition probability to choose the next node. When ants passed a node, updated the path list and node information table .Through the node information table, nodes in the network are divided into ordinary nodes and aggregation nodes,...
Target tracking is one of the non trivial applications of wireless sensor network which is set up in the areas of field surveillance, habitat monitoring, indoor buildings, and intruder tracking. Various approaches have been investigated for tracking the targets, considering diverse metrics like scalability, overheads, energy consumption and target tracking accuracy. This paper for the first time contributes...
The Wireless Sensor Network technology has been used widely; however the limited energy resource is one of the bottlenecks for its application. To enhance the robustness and accuracy of the information which is obtained by the entire network, certain redundancy exists in the data collected from the sensor node and thus data fusion processing is needed to reduce the redundant information. Firstly the...
Sensor deployment is a key issue in target detection. While a lot of works have been done to achieve "physical coverage'', few work addresses meeting high detection accuracy presented as a specific high detection probability and a low false alarm rate. In this paper, we employ a data-fusion based collaborative detection scheme for achieving guaranteed accuracy in sensor deployment. A "density...
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