Routing protocol based on social characteristics for opportunistic networks-中国期刊网

摘要 Opportunisticnetworksarederivedfromdelaytolerantnetworks,wheremobilenodeshavenoend-to-endconnections.Nodesarerepresentedbypeople,whichmeansthatopportunisticnetworkscanberegardedassocialnetworks.Humanmobilityplaysanimportantroleinaffectingtheperformanceofforwardingprotocolsinsocialnetworks,furthermore,thetrajectoryofpeople'smovementsaredrivenbysocialcharacteristics.However,currentroutingprotocolsrelyonsimplemobilitymodels,andrarelyconsidersocialcharacteristics.Consideringtwoheterogeneousnetworkmodels,ansocialopportunisticnetworksrouting(SONR)wasproposedwhichbringsanadapteddiscreteMarkovchainintonodes'mobilitymodelandcalculatesthetransitionprobabilitybetweensuccessivestatus.ComparisonwasmadebetweenSpray,WaitandEpidemicprotocol.SimulationshowthatSONRcanimproveperformanceondeliveryratio,deliverylatencyandnetworkoverhead,meanwhile.SONRapproachestheperformanceofEpidemicrouting.

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Routing protocol based on social characteristics for opportunistic networks

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Routing protocol based on social characteristics for opportunistic networks

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