VirtualizedWirelessInfrastructure-KelloggSchoolof虚拟无线基础设施-凯洛格学院

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,Virtualized Wireless Infrastructure,Sachin Katti,Assistant Professor,EE&CS,Stanford University,What does it take to.,2,Open the wireless infrastructure so users can choose any free spectrum,any network,or many networks,any time?,3,AT&T,3G,Sprint,WiMAX,Any network.,4,AT&T,3G,Sprint,WiMAX,Many networks.,What does it take to give users choice?,5,Wish List,Instantaneous contracts with any physical network,independent of its owner or radio technology,A network-independent way to choose a network,and to control mobility,6,Design Choice,Establish my own instantaneous contracts and control the network(hard),or,Delegate to an entity in the infrastructure,A service provider,My own agent,Conceptually the same;we start by delegating,7,Requirement,Technical,Radio-independent control layer,A method for a service provider to control my flows on my behalf,Business,An incentive for infrastructure owners to open access to service providers,8,Network OS,“Slicing”Layer,Network OS,Network OS,Network OS,Feature,Billing,Mobility,New Service,“AT&T”,New Service,“Vodafone”,Billing,Mobility,New Service,Feature,OpenFlow,Switch,OpenFlow,Switch,OpenFlow,Switch,OpenFlow,AP,OpenFlow,BS,Consequences,Radio-independent control layer,Service provider controls user flows,Easy handover between physical networks,Can use several networks simultaneously,Service innovation by service providers,A method to share the physical infrastructure,Isolation between service providers,Short-term or long-term lease of rights-of-way,10,11,Radio Network:,Spectrum,Radios,Network Layer:,Wireline Network,Service Layer:,Authentication,Billing,Mobility Management,Routing,AT&T,Separating the service from the network,12,Radio Network:,Spectrum,Radios,Network Layer:,Wireline Network,Service Layer:,Authentication,Billing,Mobility Management,Routing,Separation/Virtualization,Service provider controls a slice across physical networks,13,Separation/Virtualization,Service,Network,Service,Service,Service,Network,Network,Network,Radio Network:,Spectrum,Radios,“AT&T,