Cooperative Scheduling for Coexisting共存的协同调度 体域网络

《Cooperative Scheduling for Coexisting共存的协同调度 体域网络》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、IEEETRANSACTIONSONWIRELESSCOMMUNICATIONS,ACCEPTEDFORPUBLICATION1CooperativeSchedulingforCoexistingBodyAreaNetworksLushengWang,ClaireGoursaud,NavidNikaein,LauraCottatellucci,andJean-MarieGorceAbstract—Bodyareanetworks(BANs),referringtoembeddedThedesignofBANMACcouldrefertoIEEE802.15.3/15.4w

2、irelesssystemsin,on,andaroundbodies,areexpectedtostandards[8],[9]andtheprogressesofIEEE802.15.6workingtakeanimportantroleforhealth,leisure,sports,andallthegroup[10].AsshowninFig.1,aBANsuperframecontainsfacetsofourdailylife.Inmanycases,severalBANscoexistfourperiods:controlperiod,contention

3、accessperiod(CAP),inasmallarea,resultinginverystronginter-BANinterference,whichseriouslydisturbsintra-BANcommunications.Thegoalofcontentionfreeperiod(CFP),andinactiveperiod.TheCFPthispaperistodecreaseinter-BANinterferencebycooperativeiscomposedofanumberoftimeslots.Inthisperiod,trans-sched

4、uling,henceincreasingpacketreceptionrate(PRR)ofintra-missionisbasedontimedivisionmultipleaccess(TDMA).BANcommunications.CooperativeschedulinghereisdividedGuaranteedtimeslot(GTS)requestsinthecontrolperiodareintotwosub-problems:single-BANschedulingasanassignmentusedtodemandtimeslotsintheCFP

5、ofthenextsuperframeproblemandmulti-BANconcurrentschedulingasagame.Forthefirstsub-problem,alowcomplexityalgorithm,horseracingoranumberoffollowingsuperframes.SinceTDMA-basedscheduling,isproposed,whichachievesnear-optimalPRRforprotocolsoutperformcontention-basedonesfornon-dynamictheBANperform

6、ingscheduling.Forthesecondsub-problem,typesofnetworks(e.g.,BANs)[4],[11],dataframesareweprovetheexistenceofasetofmixedstrategyNashequilibriamainlytransmittedintheCFP.Therefore,itisofprimary(MSNE).Then,weproposeadistributedcooperativeschedulingimportancetoimprovetheutilizationoftheCFP.When

7、therescheme,whichefficientlyachieveshigherPRRthantheMSNEwithoutdegradingfairness.isanisolatedBAN,transmissionsofsensorsarescheduledbythecoordinatorintodifferenttimeslotswithoutcausinganyIndexTerms—Bodyareanetwork(BAN),cooperativeschedul-ing,combinatorialoptimization,