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A Predictive Movement Based Handover Algorithm for Broadband Wireless Networks

A Predictive Movement Based Handover Algorithm for Broadband Wireless Networks. Po-Hsuan Tseng , Kai-Ten Feng National Chiao-Tung University. WCNC 2008. Outline. Introduction Proposed Mechanism Performance Evaluation Conclusions.

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A Predictive Movement Based Handover Algorithm for Broadband Wireless Networks

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  1. A Predictive Movement Based Handover Algorithm for Broadband Wireless Networks Po-Hsuan Tseng , Kai-Ten Feng National Chiao-Tung University WCNC 2008

  2. Outline • Introduction • Proposed Mechanism • Performance Evaluation • Conclusions

  3. Introduction (Handover procedure of 802.16e -- Network Topology Acquisition)

  4. Introduction (Handover procedure of 802.16e – Handover Processing)

  5. Motivation and Goal • Conventional mechanism handover with signal only • To reduce the handover frequency with predictive mechanism

  6. Proposed PMHO Algorithm(Predictive Sideline-Traveling Scheme) • InitializationBSS: All the BSs that are within the transmission range of MS (except serving BS) BSS={BSA, BSC, BSD}

  7. Proposed PMHO Algorithm (Predictive Sideline-Traveling Scheme) • Periodic Updates of the Scanning Set BSS={BSA, BSC, BSD} BSS={BSC, BSD}

  8. Proposed PMHO Algorithm (Predictive Sideline-Traveling Scheme) • Prediction of Traveling Sideline(Delaunay triangulation)

  9. Proposed PMHO Algorithm (Predictive Sideline-Traveling Scheme) • Prediction of Traveling Sideline

  10. Proposed PMHO AlgorithmMSI (Moving State Indicator)

  11. Proposed PMHO AlgorithmMSI (Moving State Indicator)

  12. Proposed PMHO AlgorithmMSI (Moving State Indicator)

  13. Proposed PMHO Algorithm (Handover Decision)

  14. Performance Evaluation

  15. Performance Evaluation

  16. Performance Evaluation

  17. Performance Evaluation

  18. Conclusions • A predictive movement-based handover (PMHO) is proposed for the IEEE 802.16e. • Without calculating the precise location of the mobile device. • The simulation results illustrate that both the handover number and size of the neighbor-scanning set can be reduced.

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