High efficiency LDPC coded modulation:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Aachen
Shaker
2014
|
| Series: | Dortmunder Beiträge zur Kommunikationstechnik
9 |
| Subjects: | |
| Online Access: | Zusätzliche Angaben Inhaltsverzeichnis |
| Physical Description: | XXVII, 202 S. graph. Darst. |
| ISBN: | 9783844025514 |
Staff View
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| 245 | 1 | 0 | |a High efficiency LDPC coded modulation |c Stefan Neuhaus |
| 264 | 1 | |a Aachen |b Shaker |c 2014 | |
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Record in the Search Index
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| adam_text | CONTENTS
NOTATION XV
ABSTRACT XXIX
KURZFASSUNG XXXI
1 INTRODUCTION 1
1.1 MOTIVATION 1
1.2 A SHORT HISTORY OF CODING FOR RELIABLE COMMUNICATION . . 3
1.3 OUTLINE AND CONTRIBUTIONS 7
2 FUNDAMENTALS AND BASIC CONCEPTS 9
2.1 SYSTEM MODEL 9
2.1.1 DIGITAL COMMUNICATION SYSTEM 9
2.1.2 CHANNEL MODEL 10
2.1.3 CHANNEL CAPACITY 15
2.2 CHANNEL CODING 19
2.2.1 BLOCK CODES 19
2.2.2 PERFORMANCE FIGURES 20
2.2.3 DECISION RULES 21
2.3 APPROACHES TO CODED MODULATION 23
2.3.1 TRELLIS-CODED MODULATION 23
2.3.2 MULTILEVEL CODING 25
2.3.3 BIT-INTERLEAVED CODED MODULATION 28
2.3.4 DEMAPPER EQUATIONS FOR BICM(-ID) 31
2.3.5 DISCUSSION 35
2.4 PROPERTIES OF HIGHER-ORDER MODULATION 36
2.5 CONCLUSION 38
3 LOW-DENSITY PARITY-CHECK CODES 39
3.1 BASICS 39
3.2 GRAPHICAL REPRESENTATION 41
3.3 DEGREE DISTRIBUTIONS 43
3.4 CODE CLASSIFICATION AND CONSTRUCTION 45
3.4.1 IRREGULAR REPEAT-ACCUMULATE CODES 46
3.4.2 QUASI-CYCLIC LDPC CODES 48
3.4.3 PROGRESSIVE EDGE GROWTH ALGORITHM 49
3.4.4 ACE ALGORITHM 51
HTTP://D-NB.INFO/1046691872
IV
CONTENTS
3.4.5 FURTHER CODE DESIGNS 52
3.5 DECODING 54
3.5.1 SUM-PRODUCT ALGORITHM 54
3.5.2 MIN-SUM ALGORITHM 56
3.5.3 ALGORITHMIC SUMMARY 57
3.5.4 EVALUATION AND COMPARISON 59
3.6 ANALYSIS AND OPTIMIZATION OF LDPC CODES 60
3.6.1 BASIC PRINCIPLE 61
3.6.2 DENSITY EVOLUTION 61
3.6.3 EXIT CHARTS 64
3.6.4 CODE OPTIMIZATION 70
3.6.5 AREA PROPERTY OF EXIT CHARTS 72
3.7 FINITE-LENGTH ISSUES 73
3.7.1 CYCLES AND ITERATION NUMBERS 74
3.7.2 NEAR CODEWORDS, TRAPPING SETS, PSEUDOCODEWORDS . 75
3.8 UNEQUAL ERROR PROTECTION PROPERTIES 79
3.9 SYSTEM EXAMPLES 82
3.9.1 DVB-X2 82
3.9.2 IEEE 802.1 IN 84
3.9.3 EXEMPLARY LDPC MATRICES 86
3.10 CONCLUSION 91
4 EXIT CHARTS FOR LDPC CODED HIGHER-ORDER MODULATION 93
4.1 INTRODUCTION 93
4.1.1 RELATED WORK 93
4.2 BIT-LEVEL CAPACITIES 96
4.3 ELEMENTARY EXIT FUNCTIONS AND MAPPING DISTRIBUTIONS . . 97
4.4 MAPPING DISTRIBUTIONS 99
4.5 ANALYSIS OF TRIVIAL INTERLEAVERS 101
4.5.1 TRIVIAL INTERLEAVERS 101
4.5.2 ANALYSIS AND DISCUSSION 106
4.6 CONCLUSION 109
5 BIT-INTERLEAVED LDPC CODED MODULATION 111
5.1 INTRODUCTION ILL
5.2 FROM TRIVIAL INTERLEAVERS TO A HEURISTIC APPROACH 113
5.2.1 VARIABLE NODE CONNECTIVITY METRIC 114
5.2.2 HEURISTIC APPROACH 114
5.2.3 RESULTS 116
5.3 OPTIMIZED MAPPING DISTRIBUTIONS FOR SHORT LDPC CODES . 117
5.3.1 SHORT LDPC CODES 117
5.3.2 UNDETECTED CODEWORD ERRORS 119
5.3.3 OPTIMIZATION APPROACH 121
5.3.4 RESULTS 122
CONTENTS V
5.4 INTERLEAVER DESIGN FOR BIT-INTERLEAVED LDPC CODED MODU
LATION 126
5.4.1 MODEL DEVIATION 126
5.4.2 OPTIMIZATION APPROACH 128
5.4.3 RESULTS 129
5.5 CONCLUSION 131
6 SYMBOL-BASED LDPC CODED MODULATION 135
6.1 INTRODUCTION 135
6.2 LDPC CODES OVER GF(2
S
) 135
6.2.1 OVERVIEW 135
6.2.2 CONSTRUCTION 136
6.2.3 DECODING 137
6.2.4 REGULAR AND IRREGULAR PARITY-CHECK MATRICES .... 137
6.3 MAPPING AND DEMAPPING STRATEGIES 138
6.3.1 SYMBOL-BASED MAPPING 139
6.3.2 SYMBOL-BASED DEMAPPING 140
6.4 RESULTS AND DISCUSSION 141
6.4.1 EXEMPLARY LDPC CODES 141
6.4.2 SYSTEM MODEL 143
6.4.3 DISCUSSION 144
6.5 CONCLUSION 149
7 APPROACHES TO HIGH EFFICIENCY LDPC CODED MODULATION 151
7.1 ITERATIVE DEMAPPING 152
7.1.1 APPLICATION OF LDPC CODES 152
7.1.2 SUITABLE BIT MAPPINGS 153
7.1.3 ITERATIVE DEMAPPING OF HIGHER-ORDER MODULATION . . 155
7.1.4 ACCURACY OF THE EXIT CHART ANALYSIS 156
7.1.5 ADAPTED INTERLEAVER OPTIMIZATION 157
7.1.6 ITERATION SCHEDULES 159
7.2 SIGNAL SHAPING 161
7.2.1 MAXIMUM SHAPING GAIN 161
7.2.2 APPROACHES TO SIGNAL SHAPING 161
7.2.3 NON-UNIFORM SIGNAL CONSTELLATIONS 162
7.2.4 BIT-LEVEL CAPACITY 165
7.3 CAPACITY CONSIDERATIONS , 165
7.4 RESULTS AND DISCUSSION 166
7.4.1 COMPETITIVE APPROACHES TO LDPC CODED MODULATION 167
7.4.2 EVALUATION AND DISCUSSION 167
7.5 CONCLUSION 179
8 CONCLUSION AND OUTLOOK 181
VI
REFERENCES
CURRICULUM VITAE
CONTENTS
185
203
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| spelling | Neuhaus, Stefan 1980- Verfasser (DE-588)1047606380 aut High efficiency LDPC coded modulation Stefan Neuhaus Aachen Shaker 2014 XXVII, 202 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Dortmunder Beiträge zur Kommunikationstechnik 9 Zugl.: Dortmund, Techn. Univ., Diss., 2013 Interleaving (DE-588)4603410-9 gnd rswk-swf Modulation (DE-588)4039849-3 gnd rswk-swf Low-Density-Parity-Check-Code (DE-588)7614708-3 gnd rswk-swf Bandbreiteneffizienz (DE-588)1043466274 gnd rswk-swf Kanalcodierung (DE-588)4163183-3 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Low-Density-Parity-Check-Code (DE-588)7614708-3 s Modulation (DE-588)4039849-3 s Interleaving (DE-588)4603410-9 s Kanalcodierung (DE-588)4163183-3 s Bandbreiteneffizienz (DE-588)1043466274 s DE-604 Dortmunder Beiträge zur Kommunikationstechnik 9 (DE-604)BV036493236 9 http://digitool.hbz-nrw.de:1801/webclient/DeliveryManager?pid=5528247&custom_att_2=simple_viewer High efficiency LDPC coded modulation Zusätzliche Angaben DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027205483&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Neuhaus, Stefan 1980- High efficiency LDPC coded modulation Dortmunder Beiträge zur Kommunikationstechnik Interleaving (DE-588)4603410-9 gnd Modulation (DE-588)4039849-3 gnd Low-Density-Parity-Check-Code (DE-588)7614708-3 gnd Bandbreiteneffizienz (DE-588)1043466274 gnd Kanalcodierung (DE-588)4163183-3 gnd |
| subject_GND | (DE-588)4603410-9 (DE-588)4039849-3 (DE-588)7614708-3 (DE-588)1043466274 (DE-588)4163183-3 (DE-588)4113937-9 |
| title | High efficiency LDPC coded modulation |
| title_auth | High efficiency LDPC coded modulation |
| title_exact_search | High efficiency LDPC coded modulation |
| title_full | High efficiency LDPC coded modulation Stefan Neuhaus |
| title_fullStr | High efficiency LDPC coded modulation Stefan Neuhaus |
| title_full_unstemmed | High efficiency LDPC coded modulation Stefan Neuhaus |
| title_short | High efficiency LDPC coded modulation |
| title_sort | high efficiency ldpc coded modulation |
| topic | Interleaving (DE-588)4603410-9 gnd Modulation (DE-588)4039849-3 gnd Low-Density-Parity-Check-Code (DE-588)7614708-3 gnd Bandbreiteneffizienz (DE-588)1043466274 gnd Kanalcodierung (DE-588)4163183-3 gnd |
| topic_facet | Interleaving Modulation Low-Density-Parity-Check-Code Bandbreiteneffizienz Kanalcodierung Hochschulschrift |
| url | http://digitool.hbz-nrw.de:1801/webclient/DeliveryManager?pid=5528247&custom_att_2=simple_viewer http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027205483&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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