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Handoff in Cellular Systems

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					Handoff in Cellular
    Systems
            Defining Handoffs
   What?
   Why?
   When?
                Major Topics
   Deployment scenarios and handoff
   Resource management in cellular system
   Implementation of handoff
   Analysis of handoff algorithms
    Deployment scenarios and handoff
   Macrocells
    Deployment scenarios and handoff
   Microcells
    a) Half-square cell plan
    b) Full- square cell plan
    c) Rectangular cell plan
    Deployment scenarios and handoff
   Macrocell/Microcell overlays
    Deployment scenarios and handoff

   Special Architectures
    a) underlay/overlay system
    b) Multiple channel bandwidth system
    Deployment scenarios and handoff
   Integrated Wireless Systems
    a) Integrated Terrestrial Systems
    b) Integrated Terrestrial and Satellite Systems
    c) Handoff from Land Mobile Satellite System
       to the Terrestrial System
    d) Handoff from the Terrestrial system to the Land
       Mobile Satellite System
         Handoff Prioritization

   Guard channels
   Queuing of Handoffs
Resource management in cellular system
  Admission control
  Channel allocation

   a) Fixed Channel Assignment
   b) Dynamic Channel Assignment
   c) Flexible Channel Assignment
Resource management in cellular system
    Power control
    Handoff
     Implementation of handoff
      Resource Management Integrated Handoff
                      Algorithm
   Combined Intracell Handoff and Channel
    assignment
   SIR based Integrated Handoff algorithm
   RSS based Integrated Handoff algorithm
   Integrated power control and Handoff
    algorithm
      Implementation of handoff
   Network Controlled Handoff Protocol
   Mobile Assisted Handoff protocol
   Soft Handoff Protocol
   Mobile Controlled Handoff Protocol
    Analysis of handoff algorithms
 The Analytical Approach
 The Simulation Approach

  a) Cell model
  b) Propagation model
  c) Traffic model
  d) Mobility model
 The Emulation Approach
CONCLUSION



  FUTURE???
              REFERENCES
   www.IEEE.com
   http://portal.acm.org/portal.cfm
   www.awl.com/cseng
THANK YOU!!

				
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posted:12/6/2011
language:English
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