Mobilewirelesssensornetworks(MWSNs),thecontinuousmovementofsensornodes,maycause
completedisconnectionofthenetworkoratbestapartofit.Thedesignofsuchnetworksshould
guaranteethatallsensornodesatalltimeshaveapathtothesinknode(s).Prolongingthelifetimesof
the MWSNsisacrucialdesignissuebutshouldnotbeattheexpenseofotheressentialfunctionssuch
as connectivity.Inthispaper,weproposeanenergyefficientdistributedframeworkforconnectivity
maintenanceofMWSNs.Intheproposedframework,sensornodesoftheMWSNsscheduleandcontrol
their radiofrequency(RF)modulesbasedondynamiccoordinatedreconstructionmechanism,some
senornodesmaylosetheirconnectivitywiththenetworkduetomobility,depletionofenergyand/or
incurredfaults.TwoprotocolsaredevelopedtopatchupthedisconnectionoftheMWSNs.Thefirst
protocolreestablishesthenetworkconnectionconsumingfarlessenergythanstate-of-the-art
alternatives.However,itiscapableofreestablishingtheconnectionwhennomorethan20%ofthe
MWSN backbonenodesloseconnectionconcurrently.Thesecondprotocolextendsthislimittooperate
when upto35%oftheMWSNbackbonenodesloseconnectionsimultaneously.
Research Member
Research Department
Research Year
2012
Research Journal
Journal of Network and Computer Applications 35(2012)
Research Vol
Vol.35, No.5
Research Rank
1
Research_Pages
PP. 1598–1605
Research Abstract