Handoff in Cellular Systems
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Transcript of Handoff in Cellular Systems
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Handoff in Handoff in Cellular SystemsCellular Systems
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Defining HandoffsDefining Handoffs What?What? Why?Why? When?When?
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Major TopicsMajor Topics Deployment scenarios and handoffDeployment scenarios and handoff Resource management in cellular Resource management in cellular
systemsystem Implementation of handoffImplementation of handoff Analysis of handoff algorithmsAnalysis of handoff algorithms
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Deployment scenarios and Deployment scenarios and handoffhandoff
MacrocellsMacrocells
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Deployment scenarios and Deployment scenarios and handoffhandoff
MicrocellsMicrocells a) Half-square cell plana) Half-square cell plan b) Full- square cell plan b) Full- square cell plan c) Rectangular cell planc) Rectangular cell plan
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Deployment scenarios and Deployment scenarios and handoffhandoff
Macrocell/Microcell overlaysMacrocell/Microcell overlays
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Deployment scenarios and Deployment scenarios and handoffhandoff
Special ArchitecturesSpecial Architectures a) underlay/overlay systema) underlay/overlay system b) Multiple channel bandwidth systemb) Multiple channel bandwidth system
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Deployment scenarios and Deployment scenarios and handoffhandoff
Integrated Wireless SystemsIntegrated Wireless Systems a) Integrated Terrestrial Systemsa) Integrated Terrestrial Systems b) Integrated Terrestrial and Satellite b) Integrated Terrestrial and Satellite
SystemsSystems c) Handoff from Land Mobile Satellite Systemc) Handoff from Land Mobile Satellite System
to the Terrestrial System to the Terrestrial System d) Handoff from the Terrestrial system to the d) Handoff from the Terrestrial system to the
LandLand Mobile Satellite System Mobile Satellite System
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Handoff PrioritizationHandoff Prioritization Guard channelsGuard channels Queuing of HandoffsQueuing of Handoffs
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Resource management in Resource management in cellular systemcellular system
Admission controlAdmission control Channel allocationChannel allocation a) Fixed Channel Assignmenta) Fixed Channel Assignment b) Dynamic Channel Assignmentb) Dynamic Channel Assignment c) Flexible Channel Assignmentc) Flexible Channel Assignment
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Resource management in Resource management in cellular systemcellular system
Power controlPower control HandoffHandoff
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Implementation of handoffImplementation of handoffResource Management Integrated Handoff Resource Management Integrated Handoff
AlgorithmAlgorithm Combined Intracell Handoff and Channel Combined Intracell Handoff and Channel
assignmentassignment SIR based Integrated Handoff algorithmSIR based Integrated Handoff algorithm RSS based Integrated Handoff algorithmRSS based Integrated Handoff algorithm Integrated power control and Handoff Integrated power control and Handoff
algorithmalgorithm
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Implementation of handoffImplementation of handoff Network Controlled Handoff Network Controlled Handoff
ProtocolProtocol Mobile Assisted Handoff protocolMobile Assisted Handoff protocol Soft Handoff ProtocolSoft Handoff Protocol Mobile Controlled Handoff ProtocolMobile Controlled Handoff Protocol
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Analysis of handoff Analysis of handoff algorithmsalgorithms
The Analytical ApproachThe Analytical Approach The Simulation ApproachThe Simulation Approach a) Cell modela) Cell model b) Propagation modelb) Propagation model c) Traffic modelc) Traffic model d) Mobility modeld) Mobility model The Emulation ApproachThe Emulation Approach
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CONCLUSIONCONCLUSION
FUTURE???FUTURE???
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REFERENCESREFERENCES www.IEEE.comwww.IEEE.com http://portal.acm.org/portal.cfmhttp://portal.acm.org/portal.cfm www.awl.com/csengwww.awl.com/cseng
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THANK YOU!!THANK YOU!!