adhoc网络学习报告

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1、IntroductionofFiber-WirelessAccessNetwork123ContentsSimulationbasedonOPNETIntroductionMainresearchhotpointsIntroductionIntroduction1.IntroductionFig.1Typesofopticalaccessnetwork1.IntroductionFig.2IllustrationofthePONarchitecture1.IntroductionFig.3Typesofwirelessaccessnetw

2、ork1.IntroductionFig.4BasicarchitectureofFiWiaccessnetwork123ContentsSimulationbasedonOPNETIntroductionMainresearchhotpointsIntroductionIntroduction2.MainresearchhotpointsDeploymentRoutingalgorithmEnergysavingmechanismSurvivabilityRoutingalgorithmTheywereallevolvedfromAODV

3、（AdhocOn-DemandDistanceVectorRouting）andDSR（DynamicSourceRouting）（MinimumHopRoutingAlgorithm，MHRA）（ShortestPathRoutingAlgorithms，SPRA）（PredictiveThroughputRoutingAlgorithm，PTRA）（Delay-AwareRoutingAlgorithm，DARA）（CapacityandDelayAwareRouting，CaDAR）（Risk-and-DelayAwareRoutin

4、g，RADAR）2.MainresearchhotpointsEnergysavingmechanismTheaccessnetworkconsumes70%energyofallnetwork;ONUsconsume60%-80%energyofPON.ThetypicaltechnologyisONUsleep-modeandenergy-awareroutingalgorithm.2.MainresearchhotpointsSurvivabilityNetworkprotectionmechanismcanbedividedinto

5、linkprotectionandpathprotection,inaddition,thereisasegmentprotectionbetweenthesetwokindsofprotectionmechanism.Accordingtothearrangeoffaultinfluence,therearethreetypesofnetworkfault:OLTclass,ONUclassandwirelessrouterclass.2.MainresearchhotpointsFig.5Domiansaffectedbydiffere

6、ntlevelsoffailuresinFiWiaccessnetwork2.Mainresearchhotpoints2.MainresearchhotpointsFig.6Illustrationoffeederfiberprotectionapproach2.MainresearchhotpointsFig.7Illustrationoffullprotectionapproach2.MainresearchhotpointsFig.8IllustrationofPONprotectionapproachbasedonwireless

7、rerouting2.MainresearchhotpointsFig.9SegmentProtectionalgorithmwithLocalConnectionAvailability,SPLCA(Sharingschemefortheallocationofworkingwirelesslinkcapacity)2.MainresearchhotpointsFig.10PathProtectionalgorithmwithGlobalConnectionAvailability,PPGCA(Sharingschemefortheall

8、ocationofworkingwirelesslinkcapacityinpathprotection)2.MainresearchhotpointsFig.11Compari