1 / 28

Seamless MIPv6 based Mobility in Mobile Wimax

Seamless MIPv6 based Mobility in Mobile Wimax. Master Thesis Presentation By Talha BinFida December, 2009 KTH The Royal Institute of Technology Telecommunication System Laboratory. Presenter: Talha Bin Fida Examiner: Peter Sjödin Supervisor: Luca Valcarenghi

premala
Download Presentation

Seamless MIPv6 based Mobility in Mobile Wimax

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. Seamless MIPv6 based Mobility in Mobile Wimax Master Thesis Presentation By Talha BinFida December, 2009 KTH The Royal Institute of Technology Telecommunication System Laboratory Presenter: Talha Bin Fida Examiner:Peter Sjödin Supervisor:Luca Valcarenghi Opponents: Ali Raza,Kryiakos Zarifis

  2. Contents • Introduction • Research Motivation and Scope • Problem Statement • Mobile WiMAX Architecture based on IEEE 802.16e • Mobility in Mobile WiMAX • IEEE 802.21 and Handover Procedures • Simulation Setup • Performance Evaluation and Analysis • Conclusion and Future Work • Q&A

  3. Introduction • Broadband Wireless Access • Covergence toward ”All IP Networks” • IEEE 802.16 an important 4G contender • Mobility,nomadicity and portability Challenges • Triple Play (Voice,Video and Data) • Quardruple Play and Killer Application • Mobility and session continuation • Varying QoS requirements Figure: Bandwidth vs. Mobility

  4. Research Motivation and Scope Research Motivation • Analysis of mobility in Mobile WiMAX • Measurement of handoff delay and packet losses • Handoff latency analysis for realistic scenario Scope • Handover type will be hard handover i.e. break-before-make • Host based mobility procedures • Handover is terminal initiated depending upon received signal strength indication (RSSI). • Mobile IPv6 based mobility procedures implemented in MN • Inter-ASN handover procedures are within the scope of this thesis. • Inter-NAP (Network Access Provider) handover are not considered due to roaming and other contractual agreement reasons.

  5. Problem Statement • What is the effect of mobility on real time and multimedia applications at higher speeds during handovers in Mobile WiMAX? • How and when it is suitable to trigger handoff when MS is changing its attachment point frequently from one BS to another BS?

  6. Mobile WiMAX Architecture Figure: WiMAX Network Reference Model[2]

  7. Mobility in Mobile WiMAX Mobility a promminent feature of Mobile WiMAX “Handover (HO) is the process when MS moves from the air-interface provided by one BS to the air-interface provided by another BS” [1]. Mobility in WiMAX can be classified into two domains • Access Service Network Anchored Mobility • Connectivity Service Network Anchored Mobility

  8. ASN-Anchored Mobility Figure: ASN-Anchored Mobility

  9. CSN-Anchored Mobility Figure: CSN-Anchored Mobility

  10. Mobile IPv6 Dominant network layer mobiltiy protocol for next generation ”All IP based Networks”. Two modes of communication Bidirectional Tunneling Route Optimization Figure: Mobile IPv6 Operation

  11. IEEE 802.21/Media Independent Handover MIH/IEEE 802.21 enables handover between hetrogenous networks (e.g 802.11, 802.16e,UMTS,Ethernet) Optimization and interoperability MIH Events Service MIH Command Service MIH Information Services

  12. MIH Functionality Figure: MIH Architecture and Functionality

  13. MIH Handover using LD Trigger Figure: Handover using Link Down Trigger

  14. MIH Handover using LGD Trigger Figure: Handover using Link Going Down Trigger

  15. Layer 3 Handover Procedure Figure: Layer 3 Handover

  16. Simulation Setup Mobility is evaluated via simulation based on NS-2 with NIST mobility package for WiMAX MIPv6 Agent Neighbour Discovery Module MIH Agent

  17. Simulation Topology

  18. Performance Evaluation

  19. Performance Evaluation(cont)

  20. Performance Evaluation(cont)

  21. Performance Evaluation(cont)

  22. Handoff Latency Analysis for Realistic Scenario There can be four major communication scenarios between the MS and CN MS and HA are located close to each other, but far from CN MS is close to CN but far from HA MS is far from both CN and HA MS is located close to both CN and HA

  23. Handoff Latency Analysis for Realistic Scenario (cont) Figure: Realistic Mobility Scenario

  24. Handoff Latency Analysis for Realistic Scenario (cont)

  25. Conclusion • Evaluated handoff procedures in Mobile WiMAX • MIH integrates cross layer inforamtion • Two important triggers LD and LGD • Higher packet losses and delay using LD • Performacne improvement using LGD

  26. Future Work Traditionally RSSI is the main handoff metric • Cost of service • Available Bandwidth • Power and QOS requirements • User preferences • Network conditions

  27. References [1.] IEEE 802.16 Working Group IEEE Standard for Local and Metropolitan area networks, Part 16: Air Interface for Fixed Broadband Wireless Access Systems Amendment 2 IEEE Std 802.16e-2005, February 2006 [2.] Yan Zhang, Hsiao-Hwa Chen Mobile WiMAX towards Broadband Wireless Metropolitan Area Networks Concepts Published by Auerbach Publications Taylor and Francis Group, ISBN: 978-0-8493-2624-0

  28. Questions And Answers

More Related