final thesis presentation
TRANSCRIPT
![Page 1: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/1.jpg)
Seamless MIPv6 based Mobility in Seamless MIPv6 based Mobility in Mobile WimaxMobile Wimax
Master Thesis PresentationBy Talha BinFidaDecember, 2009KTH The Royal Institute of TechnologyTelecommunication System Laboratory
Presenter: Talha Bin FidaExaminer: Peter SjödinSupervisor: Luca ValcarenghiOpponents: Ali Raza,Kryiakos Zarifis
![Page 2: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/2.jpg)
ContentsContents
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
2
![Page 3: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/3.jpg)
IntroductionIntroduction
Broadband Wireless Access Covergence toward ”All IP Networks” IEEE 802.16 an important 4G contender Mobility,nomadicity and portability
3
Challenges Triple Play (Voice,Video and Data) Quardruple Play and Killer Application Mobility and session continuation Varying QoS requirements
Figure: Bandwidth vs. Mobility
![Page 4: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/4.jpg)
Research Motivation and ScopeResearch 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.
4
![Page 5: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/5.jpg)
Problem StatementProblem 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?
5
![Page 6: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/6.jpg)
Mobile WiMAX ArchitectureMobile WiMAX Architecture
6Figure: WiMAX Network Reference Model[2]
![Page 7: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/7.jpg)
Mobility in Mobile WiMAXMobility 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
o Access Service Network Anchored Mobilityo Connectivity Service Network Anchored Mobility
7
![Page 8: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/8.jpg)
ASN-Anchored MobilityASN-Anchored Mobility
R6
8
Base Station 1 Base Station 2Base Station 3
NSPR3 R3
R4
ASN-GatewayNAP2
ASN-GatewayR6
R8
R6
HA
Figure: ASN-Anchored Mobility
![Page 9: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/9.jpg)
CSN-Anchored MobilityCSN-Anchored Mobility
R6
9
Base Station 1 Base Station 2Base Station 3
NSPR3 R3
R4
ASN-GatewayNAP2
ASN-GatewayR6
R8
R6
HA
Figure: CSN-Anchored Mobility
![Page 10: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/10.jpg)
Mobile IPv6Mobile IPv6
Dominant network layer mobiltiy protocol for next generation ”All IP based Networks”.
Two modes of communication Bidirectional Tunneling Route Optimization
10
Figure: Mobile IPv6 Operation
![Page 11: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/11.jpg)
IEEE 802.21/Media Independent IEEE 802.21/Media Independent HandoverHandover
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
11
![Page 12: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/12.jpg)
MIH FunctionalityMIH Functionality
12Figure: MIH Architecture and Functionality
![Page 13: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/13.jpg)
MIH Handover using LD TriggerMIH Handover using LD Trigger
13Figure: Handover using Link Down Trigger
![Page 14: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/14.jpg)
MIH Handover using LGD TriggerMIH Handover using LGD Trigger
14Figure: Handover using Link Going Down Trigger
![Page 15: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/15.jpg)
Layer 3 Handover ProcedureLayer 3 Handover Procedure
15Figure: Layer 3 Handover
![Page 16: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/16.jpg)
Simulation SetupSimulation Setup
Mobility is evaluated via simulation based on NS-2 with NIST mobility package for WiMAX
MIPv6 Agent Neighbour Discovery Module MIH Agent
16
![Page 17: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/17.jpg)
Simulation TopologySimulation Topology
17
![Page 18: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/18.jpg)
Performance EvaluationPerformance Evaluation
18
![Page 19: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/19.jpg)
Performance Evaluation(cont)Performance Evaluation(cont)
19
![Page 20: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/20.jpg)
Performance Evaluation(cont)Performance Evaluation(cont)
20
![Page 21: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/21.jpg)
Performance Evaluation(cont)Performance Evaluation(cont)
21
![Page 22: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/22.jpg)
Handoff Latency Analysis for Realistic Handoff Latency Analysis for Realistic ScenarioScenario
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
22
![Page 23: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/23.jpg)
Handoff Latency Analysis for Realistic Handoff Latency Analysis for Realistic Scenario (cont)Scenario (cont)
23
Figure: Realistic Mobility Scenario
![Page 24: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/24.jpg)
Handoff Latency Analysis for Realistic Handoff Latency Analysis for Realistic Scenario (cont)Scenario (cont)
24
![Page 25: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/25.jpg)
ConclusionConclusion
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
25
![Page 26: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/26.jpg)
Future WorkFuture WorkTraditionally RSSI is the main handoff metric
Cost of service Available Bandwidth Power and QOS requirements User preferences Network conditions
26
![Page 27: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/27.jpg)
ReferencesReferences[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
27
![Page 28: Final thesis presentation](https://reader033.vdocuments.mx/reader033/viewer/2022061122/5471d5d5b4af9f86368b45b8/html5/thumbnails/28.jpg)
Questions And AnswersQuestions And Answers
28