DANORM
2012-03-24, 02:57 PM
Pablo Vidales
University Of Cambridge Computer Laboratory
1 Introduction 13
1.1 Terminology . . . . . . . . . . . . . 13
1.2 Motivation . . . . . . . . . . . . . .15
1.3 Contribution . . . . . . . . . . . . . . . 16
1.4 Outline of the rest of the dissertation . . . . . . . . . 17
2 Mobility Management Overview 19
2.1 IPv6: Next generation Internet protocol . . . . . . . 19
2.2 Terminal mobility . . . . . . . . . . . . . . . . . 22
2.2.1 Mobile IPv6: How does it work? . . . . . . . 22
2.3 Terminal mobility protocols . . . . . . . . . .23
2.3.1 Micro-mobility solutions . . . . . . . . . . . . 25
2.3.2 Macro-mobility solutions . . . . . . . . . . . . . . 26
2.4 Policy models to enable seamless mobility . . . . . . . . 27
3 The LCE-CL Experimental Setup 31
3.1 Integration techniques . . . . . . . . . 32
3.1.1 OSI-layer integration . . . . . . . . . . . . . . 33
3.1.2 Networking-component integration . . . . . . 33
3.1.3 OSI-functionality integration . . . . . . . . . . 34
3.2 The testbed . . . . . . . . . . . . . . . . . . . . . 35
3.3 Related work . . . . . . . . . . . . . . . . . . . 36
3.4 Hardware . . . . . . . . . . . . . . . . . 39
3.4.1 The Sentient Car . . . . . . . . 40
3.5 Software . . . . . . . . . . . . . . . . . . . . . . 41
3.5.1 Operational software . . . . . . . . . . 42
3.5.2 Analysis tools . . . . . . . . . 42
3.6 Remarks . . . . . . . . . . . . . . . . . 43
4 Evaluation and Networking Improvements for 4G Systems 45
4.1 Optimisations to Mobile IPv6 . . . . . . . . . 46
4.2 Experimental environment . . . . . . 47
4.3 Experiments to evaluate MIPv6 . . . . . . . . . . . . . . . 48
4.3.1 Mobile IPv6 network layer performance (IP) . . . . . 48
4.3.2 Mobile IPv6 transport layer performance (UDP) . . . . 49
4.3.3 Mobile IPv6 impact on the transport layer (TCP) . . . 50
4.3.4 Packet overhead . . . . . . . . . . . . . . . . 51
4.4 Vertical handover latency characterisation . . . . . . . .52
4.4.1 Analytical representation of latency partition . . . . . 54
4.4.2 Experimental latency partition . . . . . . 56
4.5 Impacting MIPv6 latency . . . . . . . 60
4.5.1 RA frequency . . . . . . 60
4.5.2 RA caching . . . . . . . . 61
4.5.3 BU simulcasting . . . . . . 61
4.5.4 Soft handover . . . . . . 62
4.6 Related work . . . . . . . . 64
4.7 Remarks . . . . . . . . . . 65
And Please Add Reputation
University Of Cambridge Computer Laboratory
1 Introduction 13
1.1 Terminology . . . . . . . . . . . . . 13
1.2 Motivation . . . . . . . . . . . . . .15
1.3 Contribution . . . . . . . . . . . . . . . 16
1.4 Outline of the rest of the dissertation . . . . . . . . . 17
2 Mobility Management Overview 19
2.1 IPv6: Next generation Internet protocol . . . . . . . 19
2.2 Terminal mobility . . . . . . . . . . . . . . . . . 22
2.2.1 Mobile IPv6: How does it work? . . . . . . . 22
2.3 Terminal mobility protocols . . . . . . . . . .23
2.3.1 Micro-mobility solutions . . . . . . . . . . . . 25
2.3.2 Macro-mobility solutions . . . . . . . . . . . . . . 26
2.4 Policy models to enable seamless mobility . . . . . . . . 27
3 The LCE-CL Experimental Setup 31
3.1 Integration techniques . . . . . . . . . 32
3.1.1 OSI-layer integration . . . . . . . . . . . . . . 33
3.1.2 Networking-component integration . . . . . . 33
3.1.3 OSI-functionality integration . . . . . . . . . . 34
3.2 The testbed . . . . . . . . . . . . . . . . . . . . . 35
3.3 Related work . . . . . . . . . . . . . . . . . . . 36
3.4 Hardware . . . . . . . . . . . . . . . . . 39
3.4.1 The Sentient Car . . . . . . . . 40
3.5 Software . . . . . . . . . . . . . . . . . . . . . . 41
3.5.1 Operational software . . . . . . . . . . 42
3.5.2 Analysis tools . . . . . . . . . 42
3.6 Remarks . . . . . . . . . . . . . . . . . 43
4 Evaluation and Networking Improvements for 4G Systems 45
4.1 Optimisations to Mobile IPv6 . . . . . . . . . 46
4.2 Experimental environment . . . . . . 47
4.3 Experiments to evaluate MIPv6 . . . . . . . . . . . . . . . 48
4.3.1 Mobile IPv6 network layer performance (IP) . . . . . 48
4.3.2 Mobile IPv6 transport layer performance (UDP) . . . . 49
4.3.3 Mobile IPv6 impact on the transport layer (TCP) . . . 50
4.3.4 Packet overhead . . . . . . . . . . . . . . . . 51
4.4 Vertical handover latency characterisation . . . . . . . .52
4.4.1 Analytical representation of latency partition . . . . . 54
4.4.2 Experimental latency partition . . . . . . 56
4.5 Impacting MIPv6 latency . . . . . . . 60
4.5.1 RA frequency . . . . . . 60
4.5.2 RA caching . . . . . . . . 61
4.5.3 BU simulcasting . . . . . . 61
4.5.4 Soft handover . . . . . . 62
4.6 Related work . . . . . . . . 64
4.7 Remarks . . . . . . . . . . 65
And Please Add Reputation