Handover in DVB-H : investigations and analysis

"European industry has already developed successful standards in the past, and I am very con?dent that on the basis of DVB-H, Mobile TV services can developtheeconomiesofscaletheyneedfortake-upacrossEuropeandaround the world," With these words of EU's Telecom Commissioner Viviane Reding, DVB-H is destined to be a dominating mobile TV technology in Europe and even in the world. I was ?rst getting in touch with the DVB technology when I was doing my PhD research in Brunel University in UK in 2002. At that time DVB-T was already a mature and widely used digital broadcast technology and anyone could easily buy a DVB-T receiver in the market to try the digital broadcast signals that have been already broadcasted in UK since 1998. Then the DVB technology world changed dramatically. As a more ?exible and robust terr- trial broadcast system targeting handsets, DVB-H was developed based on DVB-T. In 2003 the DVB-H community were continuously working to ?n- ize the standard. Finally in November 2004 DVB-H was adopted as an ETSI standard EN 302 304. I was lucky to see all these changes when I was doing my PhD research in DVB technology. And I was very proud to be involved in the di?erent DVB-H research projects since the beginning of the DVB-H standard development stage. I was also lucky enough that I am one of the ?rst persons who ?nished PhD degree by focusing on DVB-H research.

1 Introduction	p. 1
1.1 Telecommunication and Broadcast	p. 1
1.2 Handover in DVB-H	p. 3
1.3 Handover in Converged Networks	p. 3
1.4 Handover in Hybrid Broadcast Networks	p. 5
1.5 Passive Handover and Active Handover in DVB-H	p. 5
1.6 Soft Handover in DVB-H	p. 7
1.7 Technical Features of DVB-H	p. 7
1.7.1 DVB-H Protocol Stack	p. 8
1.7.2 Time Slicing	p. 9
1.7.3 MPE-FEC	p. 11
1.7.4 4K Mode and In-depth Interleavers	p. 13
1.7.5 DVB-H Signalling	p. 14
1.7.6 5 MHz Bandwidth	p. 16
1.8 DVB-H System Components	p. 17
1.9 Book Structure	p. 19
Problems	p. 20
2 Motivation and Approaches	p. 21
2.1 Motivation	p. 21
2.2 Approaches	p. 26
2.2.1 Handover Stages	p. 26
2.2.2 Handover Challenges	p. 28
2.3 Designing a Better Handover Algorithm for DVB-H	p. 31
Problems	p. 32
3 Survey of Handover Research in DVB-H	p. 35
3.1 Instantaneous RSSI Based Handover	p. 35
3.2 SNR Based Handover	p. 38
3.3 CDT Based Handover	p. 38
3.4 Repeater Aided Handover	p. 39
3.5 Fast Scattered Pilot Synchronization Based Handover	p. 39
3.6 Phase Shifting Based Handover	p. 42
3.7 Handover in Converged Networks	p. 42
3.8 Handover Proposed By DVB Project	p. 43
3.9 Research Projects Related to DVB-H Handover	p. 43
3.9.1 IST INSTINCT	p. 43
3.9.2 IST MING-T	p. 44
3.10 Conclusion	p. 44
Problems	p. 44
4 DVB-H Signalling Information	p. 45
4.1 Introduction	p. 45
4.2 PSI/SI Tables	p. 45
4.3 TPS Information	p. 48
4.4 Electronic Service Guide	p. 49
4.4.1 Service Description Protocol	p. 49
4.5 Electronic Program Guide	p. 50
4.6 Analysis of DVB-H Signalling	p. 50
4.7 Conclusions	p. 50
Problems	p. 50
5 Electronic Service Guide	p. 51
5.1 Introduction	p. 51
5.2 IPDC ESG	p. 51
5.2.1 IPDC ESG Layers	p. 51
5.2.2 IPDC ESG Bootstrap Processing Flow	p. 52
5.2.3 DVB IPDC 1.0 and 2.0	p. 53
5.3 OMA BCAST ESG	p. 54
5.3.1 Service Guide Discovery over Broadcast Channel	p. 55
5.3.2 Service Guide Discovery over Interaction Channel	p. 56
5.3.3 Service Guide Transmitted over Interaction Channel	p. 56
5.3.4 Scenario of using Single Service Guide to Provide Service Description for Multiple Service Providers	p. 57
5.4 OMA BCAST BMCO Profile	p. 57
5.5 ESG Sharing	p. 58
5.6 Comparison between DVB IPDC ESG and OMA BCAST ESG	p. 59
5.7 Conclusions	p. 60
Problems	p. 61
6 Handover Algorithm for a Dedicated DVB-H Network	p. 63
6.1 Introduction	p. 63
6.2 Handover Decision-making Algorithms	p. 65
6.2.1 Context Aware Handover Decision-making	p. 65
6.2.2 Location Aided Handover Decision-making	p. 67
6.2.3 UMTS Aided Handover Decision-making	p. 69
6.2.4 Repeater Aided Handover Decision-making	p. 70
6.2.5 Other Handover Decision-making Algorithms	p. 71
6.3 Comparison of Different Handover Decision-making Algorithms	p. 72
6.4 Hybrid Handover Decision-making Algorithm	p. 72
6.5 Conclusions	p. 74
Problems	p. 74
7 Post Processing of SNR Based Handover	p. 75
7.1 Introduction	p. 75
7.2 Description of the Algorithm	p. 75
7.3 Simulation and Analysis	p. 77
7.4 Conclusion	p. 79
Problems	p. 80
8 Repeater Aided Soft Handover	p. 81
8.1 Introduction	p. 81
8.2 DVB-H Signalling For RA_Handover	p. 82
8.3 RA_handover Algorithm	p. 83
8.4 Simulation Model and Analysis	p. 86
8.5 Conclusions	p. 92
Problems	p. 94
9 Repeater Aided Soft Handover Probability	p. 95
9.1 Network Topology for Handover probability	p. 96
9.2 Mathematical Model for Reduced Power Consumption	p. 99
9.3 Conclusions	p. 103
Problems	p. 103
10 Handover Algorithm for Converged Networks	p. 105
10.1 Introduction	p. 105
10.2 Research Background	p. 107
10.3 Converged Network Overview	p. 108
10.4 Handover Between UMTS and DVB-H	p. 110
10.4.1 Performing DVB-H Measurements with the Compressed Mode of UMTS	p. 110
10.4.2 Performing UMTS Measurements with the Time Slicing Mode of DVB-H	p. 111
10.4.3 Intersystem Handover Criteria	p. 111
10.4.4 Handover Execution between UMTS and DVB-H	p. 115
10.4.5 Handover Performance Evaluation	p. 117
10.5 Stochastic Tree Model and Analysis	p. 119
10.5.1 Stochastic Tree instead of Multi-dimensional Markov Chain with Loops	p. 120
10.5.2 Stochastic Tree Model for Converged Network	p. 121
10.5.3 Stochastic Tree Model for Intersystem Soft Handover	p. 125
10.5.4 Simulation and results	p. 127
10.6 Conclusions	p. 130
Problems	p. 130
11 Handover Algorithm for Hybrid Broadcast Networks	p. 131
11.1 Introduction	p. 131
11.2 Hybrid Broadcast Network Overview	p. 133
11.3 Vertical Handover in the Hybrid Broadcast Networks	p. 134
11.3.1 Handover between DVB-H and DMB-T	p. 135
11.4 Open Issues	p. 138
11.5 Conclusions	p. 138
Problems	p. 139
12 Conclusions and Future Work	p. 141
12.1 Conclusions	p. 141
12.2 Current and Future Research Work	p. 143
Problems	p. 146
Solutions	p. 147
References	p. 159
Index	p. 167

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