Channel Adaptive MAC Protocol with Traffic-Aware Distributed Power Management in Wireless Sensor Networks-Some Performance Issues

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Channel Adaptive MAC Protocol with Traffic-Aware Distributed Power Management in Wireless Sensor Networks-Some Performance Issues

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dc.contributor.author Binu, G S
dc.contributor.author Poulose Jacob,K
dc.date.accessioned 2011-01-22T04:18:14Z
dc.date.available 2011-01-22T04:18:14Z
dc.date.issued 2010-07
dc.identifier.other International Journal of Computer Science and Network Security, VOL.10 No.7, July 2010
dc.identifier.uri http://dyuthi.cusat.ac.in/xmlui/purl/2076
dc.description.abstract In Wireless Sensor Networks (WSN), neglecting the effects of varying channel quality can lead to an unnecessary wastage of precious battery resources and in turn can result in the rapid depletion of sensor energy and the partitioning of the network. Fairness is a critical issue when accessing a shared wireless channel and fair scheduling must be employed to provide the proper flow of information in a WSN. In this paper, we develop a channel adaptive MAC protocol with a traffic-aware dynamic power management algorithm for efficient packet scheduling and queuing in a sensor network, with time varying characteristics of the wireless channel also taken into consideration. The proposed protocol calculates a combined weight value based on the channel state and link quality. Then transmission is allowed only for those nodes with weights greater than a minimum quality threshold and nodes attempting to access the wireless medium with a low weight will be allowed to transmit only when their weight becomes high. This results in many poor quality nodes being deprived of transmission for a considerable amount of time. To avoid the buffer overflow and to achieve fairness for the poor quality nodes, we design a Load prediction algorithm. We also design a traffic aware dynamic power management scheme to minimize the energy consumption by continuously turning off the radio interface of all the unnecessary nodes that are not included in the routing path. By Simulation results, we show that our proposed protocol achieves a higher throughput and fairness besides reducing the delay. en_US
dc.description.sponsorship Cochin university of Science and technology en_US
dc.language.iso en en_US
dc.publisher International Journal of Computer Science and Network Security en_US
dc.subject Wireless sensor network en_US
dc.subject MAC en_US
dc.subject Fairness en_US
dc.subject error rate en_US
dc.subject energy consumption en_US
dc.subject throughput en_US
dc.title Channel Adaptive MAC Protocol with Traffic-Aware Distributed Power Management in Wireless Sensor Networks-Some Performance Issues en_US
dc.type Working Paper en_US
dc.contributor.faculty Technology en_US


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