1 / 30

Mobility Management in Wireless Mesh Networks Utilizing Location Routing and Pointer Forwarding

Mobility Management in Wireless Mesh Networks Utilizing Location Routing and Pointer Forwarding. Bing Wang. Content . Background & Problem Formulation Wireless Mesh Network Mobility management Proposed Scheme: LMMesh Performance Model – SPN Model Parameterization Performance Analysis

rigg
Download Presentation

Mobility Management in Wireless Mesh Networks Utilizing Location Routing and Pointer Forwarding

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Mobility Management in Wireless Mesh Networks Utilizing Location Routing and Pointer Forwarding Bing Wang

  2. Content • Background & Problem Formulation • Wireless Mesh Network • Mobility management • Proposed Scheme: LMMesh • Performance Model – SPN Model • Parameterization • Performance Analysis • Conclusion

  3. Wireless Mesh Network

  4. Mobility management • Search: find a mobile user’s current location • Update: update a mobile user’s location • Location information • Gateway: location database • Each MR: routing table • Handoff Management • Location Management • Routing-based • Pointer forwarding

  5. Routing-Based Method • Basic Idea • Mobility management is integrated with routing • Embed location information into regular packet • Good • No additional signaling cost using regular packet to do location update • Bad • Location information may be out-of-date for idle client

  6. Pointer Forwarding Method • K=2 Anchor MR

  7. LMMesh • Objective • Dynamically minimize network cost on a per-user basis • Methodology • Integration of both routing-based and pointer forwarding method. • Feature • Dynamically set the threshold K for the forwarding chain length

  8. Location Search for Internet Sessions

  9. Location Search for Intranet Sessions

  10. Performance Model • The SPN model for LMMesh

  11. Performance Model

  12. Performance Model

  13. Performance Model 6 7

  14. Performance Model 5

  15. Performance Analysis • Define service-to-mobility ratio (SMR) Average packet arrival rate Mobility rate

  16. Performance Analysis • Total communication cost incurred per time unit

  17. Total communication cost vs. K

  18. Optimal K value vs. SMR

  19. Total communication cost vs. ζ

  20. Average forwarding chain length vs. ζ

  21. Total communication cost vs. active ratio

  22. Optimal K value vs. active ratio

  23. Total communication cost vs. SMR

  24. Average forwarding chain length vs. SMR

  25. Total communication cost vs. ζ

  26. Average forwarding chain length vs. ζ Total communication cost v.s. ζ

  27. Total communication cost vs. active ratio

  28. Total communication cost vs. 1/λand1/μ

  29. Conclusion • LMMesh scheme combines routing-based method and pointer forwarding method to minimize overall communication cost of location management. • A SPN model is used to model the scheme and to perform evaluation. • Simulation results show the LMMesh scheme outperforms other location management schemes.

  30. Thank You

More Related