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AP Load Balance Based Handover in Software Defined Wifi Systems

ABSTRACT第6页
Symbols Description第7-8页
Acknowledgements第8-12页
Chapter 1 Introduction第12-18页
    1.1. Background第12页
    1.2. Enterprise WLAN第12-13页
    1.3. Issues in traditional wireless networks第13-14页
        1.3.1 Handover latency第13页
        1.3.2 The load balancing problem第13-14页
        1.3.3 Client dependent第14页
        1.3.4 Probing waiting time第14页
    1.4. Solution第14-15页
    1.5. Contributions第15-16页
    1.6. Organization of this thesis第16-18页
Chapter 2 SDN and Wireless Networks第18-28页
    2.1. Traditional wireless systems第18-19页
    2.2. Concept of SDN第19-20页
    2.3. SDN architecture第20-22页
    2.4. SDN in WLAN第22-24页
    2.5. Enterprise WLAN management第24-25页
    2.6. Association in WLAN第25-26页
        2.6.1. Active scanning第26页
        2.6.2. Passive scanning第26页
    2.7. Handover in WLAN第26-27页
    2.8. Load balancing solutions第27页
    2.9. Summary第27-28页
Chapter 3 AP Load Balance Based Handover in Software Defined WiFi Systems第28-40页
    3.1. AP load balance based handover in WiFi systems第28页
    3.2. Design goals for AP load balance based handover第28-29页
        3.2.1. Security第28页
        3.2.2. Station Transparency第28-29页
        3.2.3. System's Extensibility第29页
    3.3. System architecture第29-30页
    3.4. Station's association with the AP第30-31页
    3.5. Controller action第31-32页
    3.6. Methods to force a station to handover第32页
        3.6.1. Disassociation notification第32页
        3.6.2. Stop replying ACK frames第32页
        3.6.3. Power control第32页
    3.7. Load transfer policy第32-33页
        3.6.1. Threshold based policy第33页
        3.6.2. Relative transfer based policy第33页
    3.8. Station selection policy第33页
        3.8.1. Best candidate selection第33页
        3.8.2. Random station selection policy第33页
    3.9. Station's location policy第33-34页
    3.10. Design issues and assumptions第34页
    3.11. Load metric第34页
    3.12. Handover mechanism第34页
    3.13. Architecture modules第34-36页
        3.13.1. Load control module第34-35页
        3.13.2. Decision conversion module第35-36页
        3.13.3. Metric monitoring module第36页
    3.14. OpenFlow message from Controller to AP第36页
    3.15. Flowchart for AP load balance based handover第36-38页
    3.16. AP load balance based handover algorithm第38-39页
    3.17. Summary第39-40页
Chapter 4 Implementation of AP Load Balance Based Handover in Mininet WiFi第40-64页
    4.1. Software architecture and implementation第41页
    4.2. Access points (APs)第41页
    4.3. Stations(STAB)第41-42页
    4.4. Get started with Mininet-WiFi and installation第42页
    4.5. Installation commands第42页
    4.6. Creating a simple topology in Mininet-WiFi第42-43页
    4.7. Mininet-WiFi examples第43页
    4.8. VND (Visual Network Description)第43-47页
    4.9. Working achievement using Mininet Wi-Fi第47-52页
    4.10. Experiment assumptions第52页
    4.11. Experimental setup and performance results第52-62页
        4.11.1. Experiment 1第53-55页
        4.11.2. Experiment 2第55-57页
        4.11.3. Experiment 3第57-60页
        4.11.4. Experiment 4第60-62页
    4.12. Summary第62-64页
Chapter 5 Conclusions and Future Work第64-68页
    5.1. Discussion第64-65页
    5.2. Deficiency and improvement scheme第65页
    5.3. Future directions第65-68页
REFERENCES第68-72页
APPENDIX第72-74页

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