基于移动Agent的无线多媒体传感器网络QoS路由算法.pdf

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1、第26卷第7期传感技术学报V01．26No．7CHINESEJOURNALOFSENSORSANDACTUATORS2013年7月Ju1．2013AQoSRoutingAlgorithmBasedonMobileAgentforWirelessMultimediaSensorNetworksL／Zhiyuan，BIJunlei，WangRuchuan(1．DepartmentoflnternetofThings，JiangsuUniversity，ZhenjiangJiangsu212013，China；2．InformationCenter，Jiangsu

2、University，ZhenjiangJiangsu212013，China；3．MinistryofEducationKeyLaboratoryofBroadbandWirelessCommunicationandSensorNetworkTechnology，N8内tngUniversityofPostsandTelecommunications，NⅡtng210003，ChinaAbstract：Themaincharacteristicsofwirelessmultimediasensornetworks(WMSNs)includelimitede

3、nergyresources，delay—sensitiveandhighdataredundancy．Besides，thebandwidthfortheaudioandvideostreamstransmissionisseveraltimesthanthemaximumtransmissionbandwidthofthemultimediasensors．Thetwoaspectsmakethequalityofservice(QoS)routingofWMSNsbecomeagreatlychallengingissue．Firstly，thenet

4、workareaisdividedviaanunevenclusteringalgorithmbasedonarithmeticprogression．Thenamobileagent·basedQoSroutingalgorithmforWMSNs(MAQR)undertheunevennetworktopologyisproposed．MAQRconsistsofamultipathroutingdiscoveryphaseandadatatransmissionphase．Inthemultipathroutingdiscoveryphase，them

5、obileagenttechnologyisusedtoimplementthemuhipathroutingdiscovery．Inthedatatransmissionphase，theproposedmulti—prioritymulti—pathtransmissionmodelisusedtoclassifythedataflow，andtheproposedtrafficpredictionmodelisusedtoachieveloadbalancingoftheWMSNs．Finally，MAQRisimplementedontheplatf

6、ormofNS一2．ThesimulationresultsshowthatMAQRcansignificantlyimprovethequalityofservicesofmultimediastreamtransmissionandhavelowerenergyconsumptioncomparedwiththesimilaralgorithms．Keywords：wirelessmultimediasensornetworks；QoSrouting；unequalclustering；mobileagentEEACC：6150Pdoi：10．3969／

7、j．issn．1004-1699．2013．07．020基于移动Agent的无线多媒体传感器网络QoS路由算法术李致远，毕俊蕾，王汝传(1．江苏大学计算机科学与通信工程学院，江苏镇江212013；2．江苏大学信息化中心，江苏镇江212013；3．南京邮电大学宽带无线通信与传感网技术教育部重点实验室，南京210003)摘要：无线多媒体传感器网络(WMSNs)的主要特点包括资源有限、时延敏感和数据冗余性高。此外，音视频数据流传输所需的带宽是多媒体传感器节点所能承受的最大传输带宽的几倍。上述因素使得WMSNs的QoS路由成为一个亟待解决的关键技术问题。鉴于此，首先

8、通过基于等差数列的非均匀分簇算法对网络区域进行划分，