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《Sink節(jié)點(diǎn)移動(dòng)的無(wú)線(xiàn)傳感網(wǎng)生存時(shí)間優(yōu)化算法.pdf》由會(huì)員上傳分享，免費(fèi)在線(xiàn)閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、第25卷第5期傳感技術(shù)學(xué)報(bào)V01．25No．52012年5月CHINESEJOURNALOFSENSORSANDACTUATORSMav2012LifetimeOptimizedAlgorithmwithMobileSinkNodeinWirelessSensorNetworksRENTiaojuan，YANGHaibo，CHENYourong(CollegeofInfi*rmationScienceandTechnology，ZhefiangShurenUniversity，Hangzhou310015，China)Abstrac
2、t：Toprolongthenetworklifetime，lifetimeoptimizedalgorithmwithmobileSinknode(LOAMSN)isproposed．TheconstraintconditionswithmobileSinknodesuchasflowbalanceconstraint，maximumtransmissionrateconstraintandnodeenergyconstraintareanalyzed．ThentheoptimizedlifetimeproblemiSformul
3、izedintooptimizedmode1．ThemobilemethodofSinknodeisproposed．Sinknodeusesthedegreevaluesofnodestoconstructthemobilepathandmovescircularlytocollectdatefollowingthepath．ThemobilityofSinknodeisconsideredasdiscretemovement．Therefore．theoptimizedlifetimemodelofmobileSinknodei
4、SdividedintoseveraloptimizedmodelsofstaticSinknode．EachoptimizedmodelofstaticSinknodeiSsolvedbyNewtonalgorithm．Finallytheoptimalvaluesofnetworkmaximumlifetimeandnodetransmissiondataamountareobtained．SimulationresultsshowthatLOAMSNalgorithmcanreducethenodeenergyconsumpt
5、ioninwhichpositionstheSinknodestays，andbalancenetworkload，theothernodes’energyconsumption，andprolongthemaximumnetworklifetime．Undercertainconditions，LOAMSNalgorithmoutperformsthealgorithmwhenSinknodeisstatic．Keywords：wirelesssensornetworks；networklifetime；optimizationm
6、ethod；mobilesinknodeEEACC：6150Pdoi：10．3969／j．issn．1004—1699．2012．05．024Sink節(jié)點(diǎn)移動(dòng)的無(wú)線(xiàn)傳感網(wǎng)生存時(shí)間優(yōu)化算法術(shù)任條娟，楊海波，陳友榮(浙江樹(shù)人大學(xué)信息科技學(xué)院，杭州310015)摘要：為提高網(wǎng)絡(luò)最大生存時(shí)間，提出Sink節(jié)點(diǎn)移動(dòng)的無(wú)線(xiàn)傳感網(wǎng)生存時(shí)間優(yōu)化算法(LOAMSN)。該算法分析Sink節(jié)點(diǎn)移動(dòng)時(shí)的流量平衡約束、最大傳輸速率約束、節(jié)點(diǎn)能耗約束等約束條件，將生存時(shí)間優(yōu)化問(wèn)題轉(zhuǎn)化成優(yōu)化模型。提出Sink節(jié)點(diǎn)的移動(dòng)方法，即Sink節(jié)點(diǎn)利用節(jié)點(diǎn)的度值構(gòu)建其移動(dòng)
7、路徑，按照此路徑循環(huán)移動(dòng)收集數(shù)據(jù)。將Sink節(jié)點(diǎn)的移動(dòng)認(rèn)為是離散運(yùn)動(dòng)，Sink節(jié)點(diǎn)移動(dòng)的生存時(shí)間優(yōu)化模型分解成若干個(gè)Sink節(jié)點(diǎn)靜止的生存時(shí)間優(yōu)化模型．采用牛頓法求解每個(gè)Sink節(jié)點(diǎn)靜止的優(yōu)化模型，獲得網(wǎng)絡(luò)最大生存時(shí)間和節(jié)點(diǎn)發(fā)送數(shù)據(jù)量的最優(yōu)值。仿真結(jié)果表明：LOAMSN算法能減少Sink節(jié)點(diǎn)停留位置上的節(jié)點(diǎn)能耗，平衡網(wǎng)絡(luò)負(fù)載和節(jié)點(diǎn)能耗，提高網(wǎng)絡(luò)最大生存時(shí)間。在一定條件下，LOAMSN算法比Sink節(jié)點(diǎn)靜止時(shí)更優(yōu)。關(guān)鍵詞：無(wú)線(xiàn)傳感網(wǎng)；生存時(shí)間；最優(yōu)化方法：移動(dòng)Sink節(jié)點(diǎn)中圖分類(lèi)號(hào)：TP393文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1004—1699
8、(2012)05—0683—08網(wǎng)絡(luò)生存時(shí)間是衡量無(wú)線(xiàn)傳感網(wǎng)性能好壞的重外，如果還要實(shí)現(xiàn)有線(xiàn)網(wǎng)絡(luò)或無(wú)線(xiàn)網(wǎng)絡(luò)的安全性、多要指標(biāo)之一，也是無(wú)線(xiàn)傳感網(wǎng)的一個(gè)研究熱點(diǎn)。在大媒體、QoS保障等功能，都需要正常運(yùn)行的網(wǎng)絡(luò)和能部分隋況下無(wú)線(xiàn)傳感網(wǎng)的
