Handover mechanisms in next generation heterogeneous wireless ...

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LIST OF FIGURES Figure 4.9 The cumulative first-passage-time probabilities of entering into boundaries [n=6] ................................................................................................................................ 72 Figure 4.10 The mean number of possible cell crossings ............................................... 73 Figure 4.11 NTC exchange finish ratio vs. time [Size of rings=6, MCRT=30mins] ...... 74 Figure 4.12 Number of mobile users vs. NTC exchange finish ratio ............................. 75 Figure 4.13 Size of rings vs. Number of mobile users required per cell [MCRT=30mins] ......................................................................................................................................... 76 Figure 4.14 Cumulative signalling cost vs. time [MCRT=30mins] ................................ 77 Figure 4.15 Number of mobile users per cell vs. regional NTC pattern construction time ......................................................................................................................................... 78 Figure 4.16 NTC update interval vs. NTC exchange error rate ...................................... 79 Figure 5.1 RSS-based handover decision algorithm ....................................................... 84 Figure 5.2 Network selection problem in a PLMN-WLAN interworking ...................... 88 Figure 5.3 Trust-assisted handover algorithm flow chart ............................................... 92 Figure 5.4 Trust coefficient function (with H � 6) ....................................................... 93 Figure 5.5 An Analysis of delay in WLAN�UMTS handover ..................................... 96 Figure 5.6 Handover delay vs. Trust density [ p � 50% ] ............................................... 102 Figure 5.7 Load balance factor vs. Trust density [ p � 50% ] ........................................ 103 Figure 5.8 Handover delay vs. Trust density vs. Probability of no TA [THOA, ETS=10] ....................................................................................................................................... 104 Figure 5.9 Handover delay vs. Trust density vs. Probability of no TA [MHOA] ........ 104 Figure 5.10 The effect of THOA ETS on handover delay ............................................ 105 Figure 5.11 The effect of THOA ETS on load balance factor ...................................... 106 Figure 5.12 Comparison of the THOA and the MHOA on QoS .................................. 109 Figure 6.1 A trust model for security analysis of handover .......................................... 112 Figure 6.2 Classification of fast authentication approaches.......................................... 115 Figure 6.3 An overview of trust associations for fast authentication ............................ 118 Figure 6.4 Fast authentication ticket generation procedure .......................................... 122 Figure 6.5 Fast authentication procedure ...................................................................... 124 Figure 6.6 Session key renewal procedure initiated by MH ......................................... 126 Figure 6.7 Session key renewal procedure initiated by AN .......................................... 127 Figure 7.1 General Media Independent Handover reference model [119] ................... 139 eff - viii - A A
LIST OF FIGURES Figure 7.2 A generic multi-interface model for media independent handover ............. 141 Figure 7.3 Schematic of a dual-interface mobile terminal under the generic multiinterface model .............................................................................................................. 143 Figure 7.4 Mobility scenario 1 ...................................................................................... 145 Figure 7.5 Received signal power at the MH ................................................................ 145 Figure 7.6 The dual-interface MH’s throughput ........................................................... 146 Figure 7.7 The single-interface MH’s throughput ........................................................ 147 Figure 7.8 End-to-end packet delay from the CN to the dual-interface MH ................ 148 Figure 7.9 End-to-end packet delay from the CN to the single-interface MH .............. 148 Figure 7.10 Mobility Scenario 2 ................................................................................... 149 Figure 7.11 Heterogeneity of ADI vs. Handover delay (with cross-layer trigger mechanism) ................................................................................................................... 150 Figure 7.12 Heterogeneity of ADI vs. Handover delay (without cross-layer trigger mechanism) ................................................................................................................... 151 Figure 7.13 ADI vs. Handover delay (with cross-layer trigger) ................................... 152 Figure 7.14 ADI vs. Handover delay (without cross-layer trigger) .............................. 152 Figure 7.15 TCP sequence number (with cross-layer trigger) ...................................... 153 Figure 7.16 TCP sequence number (without cross-layer trigger) ................................. 154 - ix -
Page 1 and 2: Handover Mechanisms in Next Generat
Page 3 and 4: ACKNOWLEDGMENT First of all, I woul
Page 5 and 6: TABLE OF CONTENTS 4.4.2 Power Save
Page 7: LIST OF FIGURES LIST OF FIGURES Fig
Page 11 and 12: ABSTRACT New access technologies su
Page 13 and 14: Chapter 1 INTRODUCTION New access t
Page 15 and 16: INTRODUCTION becomes available. Han
Page 17 and 18: INTRODUCTION The above multipliciti
Page 19 and 20: INTRODUCTION network trust pattern
Page 21 and 22: INTRODUCTION 1.3 Related Publicatio
Page 23 and 24: INTRODUCTION TECHNICAL REPORTS XIII
Page 25 and 26: HANDOVER MANAGEMENT horizontally. H
Page 27 and 28: HANDOVER MANAGEMENT The objective o
Page 29 and 30: HANDOVER MANAGEMENT air interface,
Page 31 and 32: HANDOVER MANAGEMENT proposed archit
Page 33 and 34: HANDOVER MANAGEMENT Access point (A
Page 35 and 36: HANDOVER MANAGEMENT users. Moreover
Page 37 and 38: HANDOVER MANAGEMENT For IEEE 802.11
Page 39 and 40: HANDOVER MANAGEMENT The two schemes
Page 41 and 42: HANDOVER MANAGEMENT When a MH is mo
Page 43 and 44: 3.1 Introduction Chapter 3 HANDOVER
Page 45 and 46: SECURITY FOR HANDOVER ACROSS HETERO
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SECURITY FOR HANDOVER ACROSS HETERO
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DYNAMIC NEIGHBOUR TRUST INFORMATION
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Chapter 5 TRUST ASSISTED HANDOVER A
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TRUST ASSISTED HANDOVER ALGORITHM F
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Chapter 6 PROXY BASED AUTHENTICATIO
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PROXY BASED AUTHENTICATION LOCALISA
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MULTI-INTERFACE MOBILE MODEL FOR ME
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CONCLUSIONS AND FUTURE RESEARCH WOR
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ABBREVIATIONS 3G 3rd Generation Wir
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ABBREVIATIONS LS Location Server MH
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ABBREVIATIONS THOA Trust Assisted H
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REFERENCES [12] C. Politis, T. Oda,
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REFERENCES [37] Wi-Fi Alliance, "Wi
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REFERENCES presented at IEEE Intern
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REFERENCES [90] R. Verdone and A. Z
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REFERENCES [116] K. E. Malki and H.
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