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Due to the special distribution of wireless sensor network nodes, the energy consumption of the nodes has strict requirements. In this paper, we propose an energy optimization scheme for wireless sensor networks based on modulation optimization. We analyze the relationship among energy consumption, modulation, the distance between nodes and modulation parameters. Finally, the simulation results show...
Most of the recent research on Object Tracking Sensor Networks has focused on collecting all data from the entire sensor network and placing it into the sink, which delivers the predicted locations to the corresponding nodes in order to predict an object's movement. This collection method affects the freshness of the data and creates latency in predicting movement patterns. In addition, due to the...
Designing a lifetime-maximization routing in wireless sensor networks poses a great challenge mainly due to unreliable wireless links and limited power supply. Recently, two natural advantages of opportunistic routing, i.e., path diversity and the improvement of transmission reliability, are exploited to develop a lifetime-extended opportunistic routing for wireless sensor networks. Besides, asynchronous...
This paper discusses how to dispatch mobile resources to provide services for users in wireless sensor networks. The sensor nodes are able to dispatch these mobile resources by themselves, when they detect events and need the special services of mobile resources. This paper presents four mobile resource dispatch mechanisms according to two objective functions, where one centralized mechanism and three...
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