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4601.(2.33.4.5.6.7.8.9.IEEE10.11.12._800MHz___915M_____5GHz13.___14.(1)(2)(3)15.SIFS28sa)PIFSSIFS(slot)78sb)DIFSDIFS=PIFS+1DIFS128s16.161117.SSID18.19.20.RFIDRIFD5401.CSMA/CACSMA/CADIFSACKSIFSACKACK2.LAN?94cellAP5APAP?PCFAP?AP?AP?APAP?4?APAPAPAP??RC43.(WSN)4.RBSTPSNRBSTPSN5.ABDDABDABD6.7.ZigBeeZigBeeChipconCC2430ZigBeeRFZigBee8.:::WSN():NS2TinyOSOPNETOMNET++TinyOSNS2:NSREAL.NS,C++OTCLC++C++NSOTCL,C++,OTCL,OTCL,,,,,.NSNS,OPNET:(1),,,(2)OPNET(3)OPNET,()(4)OPNET,OPNETC(5)OPNET,(6)OPNET,TinyOSnesCTinyOSTOSSIMAvrora1TOSSIM(TinyOSsimulation)TinyOSPC.TOSSIM,TinyOS2AvroraAtmelMica2AVR9.:(1)QoSQoS(2)WSNs,,(3)WSNs,WSNs(4)WSNs,,(5)WSNs,,10.WSN(WSNOS)WSNWSNWSNOS/WSNOSWSNOSTinyOSWSNOSTinyOSnesCnesC:CCcomponentinterfaceMantisOS0.9.5(MultimodalNetworksofIn-situSensors)cRAM500SOSC11.WSNAd-hocWSNWSNAdhocWSNAdhoc1WSN2WSN3WSNAdhoc4WSN5WSN6WSNWSNAdhocAdhocWSNAdhoc12.(Mesh)(Clustertree)(Sink)RS232PC(1)(2)(3)(4)(5)13.S-MACMAC(CSMA)IEEEMAC(CSMAwithCollisionAvoidanceCSMA/CA)MACCSMA/CA:14.MACNear/FarCSMA/CDCSMA/CA(CarrierSenseMultipleAccesswithCollisionAvoidance)DCF(DistributedCoordinationFunction)CSMA/CAACKACK15.1216.meshmeshmeshmeshroutersmeshclientsmeshroutersinternetmeshclientsinternetMeshmulti-hop1.2.(NLOS)3.4517.WSNa)10PCMb)18.BPSKO-QPSK1BPSKBinaryPhaseShiftKeyingBPSK012(1)4QPSK88PSK2O-QPSKoffsetQPSKOQPSKQPSK,19.Greedyalgorithm20.GPSR),)(#$%$&&/%((%(%#$%$&$)!$)!#$%$&$)%$)%#$%$&-)21.1SDITTDTDSDAATTD122.MECNTBF1MECNMECNMECNMECN2BelmanFondMECN2MECN2TBFTBFTemporaryBlockFlowPDCHLLCPDUTBFTBFGPRSTBF----TemporaryBlockFlowTBF----ThermalBondingFilmGPRS,,,,GPS323.DirectedDiffusionDDBL1117C-33C(Interest)Gradient)3Rumorsink,DirectedDiffusion,Rumor..,Agent,.Agent,Agent,Agent.sink,;,sinkflooding.sink,Rumor.,Agent