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1、-------AbstractAsanewkindofinformationacquisitionandprocessingmode,wirelesssensornetwork(WSN)hasbecomearesearchfocusathomeandabroad.Becauseofthelimitationofenergyofthesensornodeitself,theperformanceofroutingalgorithmhasanimportantinfluenceforWSN.Thismainstudiedfocusofthepaperisclusteringrout
2、ingalgorithmforWSN,andtheclusteringandroutingmechanismistwoimportantresearchcontentsofclusteringroutingalgorithmforWSN.Theformerisresponsiblefortheoptimizationofnetworktopologicalstructure.Itisfocusontheoptimizationofthenumberofclusterheadsandreasonableconfigurationelementsoftheclusterheads.
3、Thelaterisfocusonthebestroutetotransmitthecollecteddatatobasestation.Goodclusteringandroutingmechanismcaneffectivelybalancethenetworkenergyconsumption,increasethelifecycleofthenetwork.(1)Thepaperproposestheimprovedparticleswarmalgorithm(IBPSO)onthebasisofinthebasicparticleswarmoptimizational
4、gorithm(BPSO)whichimprovedtheinertiaweightandacceleratingfactor.ThealgorithmmainlymadetwoimprovedaspectscomparedwiththeBPSOalgorithm:Thespeedoftheparticlecanbeadjustedaccordingtothesituationofconvergencebyintrodutingindividualoptimalandglobaloptimalfactorininertiaweight;Intheviewoflossesofth
5、ediversityofpopulationinthelateiterationsonBPSOalgorithm,anditiseasyconvergencetothelocaloptimalsolution,theaccelerationfactorisimprovedandmakestheaccelerationfactorisnolongerafixedvalue,butaccordingtotheexperienceoftheparticleitselfmemoryandgroup'sroleinthemovementtomakedynamicadjustment,wh
6、ichaffectsthesizeoftheparticlevelocity.FunctiontestresultsshowthattheimprovedIBPSOglobalsearchabilityandconvergencespeedofthealgorithmhascertainimprovement.(2)InviewoftherandomnessofselectingclusterheadsoftheLEACHalgorithm,thepaperuseparticleswarmalgorithmtoimprovetheclusteringmechanism.Thep
7、aperproposesaheterogeneousclusteringalgorithmforWSNbasedonparticleswarmoptimizationalgorithm(PSO-CRA).Thealgorithmimprovethefitnessfunctionofarticleswarmalgorithmandconsidertheresidualenergyofnodes,thedistanceofnodeandnode,thedistancebetweennodesan
