Tuesday, April 6, 2010

quantity of low-cost micro-sensor nodes

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Wireless sensor networks consist of a large quantity of low-cost micro-sensor nodes that are deployed in the monitoring region,and the nodes form a multi-hop ad-hoc networks through the wireless communication mode.With the development of sensor 12hot cheap prom dresses technology,microelectronics systems,modern networking,and wireless communication technology,on the basis of small size,low cost,data collection, short-range wireless communications and data processing capability of sensor nodes, Wireless sensor networks in environmental monitoring,military,industrial control, medical and health and other fields have broad application prospects.Because of discount wedding dresses energy-constrained,energy-efficient is of primary importance to wireless sensor networks but not other networks.So how to reduce the energy consumption of wireless sensor networks research in this field is a hot issue.In wireless sensor networks,MAC protocol(Medium Access Control,custom made prom dresses) defines the use mode of wireless channel,which may have a great impact on the performance of sensor networks,and MAC protocol is one of the key network protocols of energy consumption.Experts found the the flat iron shop for us a good cluster structure can improve the efficiency of polo shirts protocols,provide basis for data aggregation and many other aspects,reduce the overall energy consumption of wireless sensor networks,extend the survival time of networks.Therefore cluster structure can be used as a solution to reduce energy consumption of MAC protocol.
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