基于群智能优化技术的无线传感网分簇路由算法-研究

《基于群智能优化技术的无线传感网分簇路由算法-研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、AbstractAsanewkindofinformationacquisitionandprocessingmode,wirelesssensornetwork(WSN)hasbecomearesearchfocusathomeandabroad.Becauseofthelimitationofenergyofthesensornodeitself,theperformanceofroutingalgorithmhasanimportantinfluenceforWSN.Thismainstudiedfocusofthep

2、aperisclusteringroutingalgorithmforWSN,andtheclusteringandroutingmechanismistwoimportantresearchcontentsofclusteringroutingalgorithmforWSN.Theformerisresponsiblefortheoptimizationofnetworktopologicalstructure.Itisfocusontheoptimizationofthenumberofclusterheadsandre

3、asonableconfigurationelementsoftheclusterheads.Thelaterisfocusonthebestroutetotransmitthecollecteddatatobasestation.Goodclusteringandroutingmechanismcaneffectivelybalancethenetworkenergyconsumption,increasethelifecycleofthenetwork.(1)Thepaperproposestheimprovedpart

4、icleswarmalgorithm(IBPSO)onthebasisofinthebasicparticleswarmoptimizationalgorithm(BPSO)whichimprovedtheinertiaweightandacceleratingfactor.ThealgorithmmainlymadetwoimprovedaspectscomparedwiththeBPSOalgorithm:Thespeedoftheparticlecanbeadjustedaccordingtothesituationo

5、fconvergencebyintrodutingindividualoptimalandglobaloptimalfactorininertiaweight;IntheviewoflossesofthediversityofpopulationinthelateiterationsonBPSOalgorithm,anditiseasyconvergencetothelocaloptimalsolution,theaccelerationfactorisimprovedandmakestheaccelerationfacto

6、risnolongerafixedvalue,butaccordingtotheexperienceoftheparticleitselfmemoryandgroup'sroleinthemovementtomakedynamicadjustment,whichaffectsthesizeoftheparticlevelocity.FunctiontestresultsshowthattheimprovedIBPSOglobalsearchabilityandconvergencespeedofthealgorithmhas

7、certainimprovement.(2)InviewoftherandomnessofselectingclusterheadsoftheLEACHalgorithm,thepaperuseparticleswarmalgorithmtoimprovetheclusteringmechanism.ThepaperproposesaheterogeneousclusteringalgorithmforWSNbasedonparticleswarmoptimizationalgorithm(PSO-CRA).Thealgor

8、ithmimprovethefitnessfunctionofarticleswarmalgorithmandconsidertheresidualenergyofnodes,thedistanceofnodeandnode,thedistancebetweennodesandsinkno