Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems: Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Herzogenrath
Shaker
2013
|
| Schriftenreihe: | Erlanger Berichte aus Informations- und Kommunikationstechnik
33 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | X, 246 S. Ill., graph. Darst. 210 mm x 148 mm, 387 g |
| ISBN: | 9783844024081 |
Internformat
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| 245 | 1 | 0 | |a Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems |b Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems |c Christian Rohde |
| 264 | 1 | |a Herzogenrath |b Shaker |c 2013 | |
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| 336 | |b txt |2 rdacontent | ||
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| 490 | 1 | |a Erlanger Berichte aus Informations- und Kommunikationstechnik |v 33 | |
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CONTENTS
ABSTRACT III
ZUSAMMENFASSUNG (ABSTRACT IN GERMAN) V
1 INTRODUCTION 1
2 THE MULTI-CARRIER TRANSMISSION SCHEME OFDM 5
2.1 TRANSMISSION CHAIN 5
2.1.1 OFDM MODULATOR 6
2.1.2 TRANSMISSION CHANNEL 8
2.1.3 OFDM DEMODULATOR 10
2.2 PROPERTIES AND MODELING OF THE TRANSMISSION CHANNEL 16
2.2.1 FADING OF THE MOBILE RADIO CHANNEL 17
2.2.2 THE WSSUS CHANNEL MODEL 18
2.2.3 DESCRIPTION OF THE CHANNEL VARIABILITY OVER TIME 20
2.2.4 CHOSEN CHANNEL MODEL PARAMETERS 27
2.3 OFDM WAVEFORM PARAMETERS OF THE DVB-SH STANDARD 30
2.3.1 PILOTS AND PILOT PATTERN 31
2.3.2 CONSIDERED SYSTEM CONFIGURATION 32
2.4 DISTORTIONS DUE TO NOISE AND INTERFERENCE 33
2.4.1 ADDITIVE WHITE GAUSSIAN NOISE 33
2.4.2 INTER-CARRIER INTERFERENCE 37
2.4.3 INTER-SYMBOL INTERFERENCE 40
2.5 SUMMARY 41
3 CONCEPT OF PILOT-AIDED CHANNEL ESTIMATION 43
3.1 FUNDAMENTALS OF PILOT-AIDED CHANNEL ESTIMATION 43
3.1.1 LEAST SQUARES ESTIMATE 44
3.1.2 PILOT PATTERN SAMPLING THEOREM 44
3.1.3 ESTIMATION BY LINEAR FILTERING 45
3.1.4 DISCUSSION OF ALGORITHM CONCEPTS 45
3.2 MINIMUM MEAN-SQUARED ERROR (MMSE) ESTIMATION 49
3.2.1 DERIVATION AND DEFINITION OF THE MEAN-SQUARED ERROR (MSE) . 49
3.2.2 OPTIMAL FILTER COEFFICIENTS 50
3.2.3 REAL-VALUED FILTER COEFFICIENTS 50
3.2.4 CASCADED 2X ID MMSE ESTIMATION 51
3.2.5 BIAS OF MMSE ESTIMATES 55
3.3 ROBUST CHANNEL ESTIMATION 57
3.3.1 ESTIMATION IN TIME DIRECTION 57
HTTP://D-NB.INFO/1044259329
VIII CONTENTS
3.3.2 ESTIMATION IN FREQUENCY DIRECTION 58
3.3.3 METHOD OF ADAPTIVE ROBUST FILTER SELECTION 59
3.4 ANALYZING THE CHANNEL ESTIMATION PERFORMANCE 60
3.4.1 PERFORMANCE OF 2D MMSE CHANNEL ESTIMATION 61
3.4.2 2D VERSUS 2X ID MMSE CHANNEL ESTIMATION 62
3.4.3 REAL-VALUED VERSUS COMPLEX-VALUED MMSE CHANNEL ESTIMATION . . 72
3.4.4 ROBUST FILTERS VERSUS MMSE CHANNEL ESTIMATION 77
3.5 SUMMARY AND CONTRIBUTION 82
4 LOW-COMPLEXITY ALGORITHMS FOR ADAPTIVE CHANNEL ESTIMATION 85
4.1 STATE-OF-THE-ART ADAPTIVE CHANNEL ESTIMATION 85
4.1.1 DETERMINATION OF THE ESTIMATION SCENARIO 85
4.1.2 ADAPTATION BY SWITCHING OR RECALCULATION OF FILTERS 87
4.1.3 ITERATIVE/RECURSIVE SCHEMES CONVERGING TO THE MMSE SOLUTION . 87
4.1.4 METHODS BASED ON DECISION FEEDBACK 88
4.1.5 CONNATURAL BLOCK PROCESSING METHODS 89
4.1.6 CONCLUDING REMARKS 91
4.2 BLOCK PROCESSING ALGORITHMS FOR THE ADAPTIVE INTERPOLATION TASK 92
4.2.1 RESTRICTIONS AND ASSUMPTIONS 93
4.2.2 LEAST-MEAN-SQUARE-BASED APPROACHES 94
4.2.3 RECURSIVE LEAST-SQUARES-BASED APPROACHES 101
4.3 MODIFICATIONS OF THE ALGORITHMS FOR THE ADAPTIVE SMOOTHING TASK 109
4.3.1 LEAST-MEAN-SQUARE-BASED ALGORITHMS FOR SMOOTHING 109
4.3.2 RECURSIVE LEAST-SQUARES-BASED ALGORITHMS FOR SMOOTHING 113
4.4 DIFFERENCE BETWEEN ADAPTATION IN TIME AND FREQUENCY DIRECTION 115
4.5 SUMMARY AND CONTRIBUTION 116
5 ANALYSIS AND ESTIMATION ACCURACY OF THE ADAPTIVE ALGORITHMS 119
5.1 SETUP AND IMPLEMENTATION EFFORT 119
5.1.1 APPLICATION STRATEGIES 120
5.1.2 SETUP AND ALGORITHM PARAMETERS 123
5.1.3 MEASURE FOR THE ALGORITHMS'ESTIMATION ACCURACY 124
5.1.4 COMPLEXITY ANALYSIS 124
5.2 THEORETICAL CONVERGENCE BEHAVIOR CONCERNING THE NLMS-TYPE ALGORITHMS
126
5.2.1 THE CONVERGENCE FORMULA 127
5.2.2 EIGENVALUES AND EIGENVALUE SPREAD OF THE ACM 129
5.3 LEARNING CURVES OF ESTIMATION IN TIME DIRECTION 131
5.3.1 BLOCK PROCESSING GAIN 131
5.3.2 COMPLEX- VERSUS REAL-VALUED FILTERING 135
5.3.3 MODIFIED ALGORITHM INITIALIZATION 138
5.4 LEARNING CURVES OF ESTIMATION IN FREQUENCY DIRECTION 140
5.4.1 BLOCK PROCESSING GAIN 141
5.4.2 COMPLEX- VERSUS REAL-VALUED FILTERING 142
5.4.3 APPLICATION STRATEGY DEPENDENT CONVERGENCE BEHAVIOR 144
5.4.4 ESTIMATION POSITION AND ROBUST PREFILTERING DEPENDENT MSE . 146
5.5 ADAPTIVE 2X ID ESTIMATION 147
5.5.1 INITIALIZATION AND PARAMETERIZATION 149
CONTENTS IX
5.5.2 CLASSICAL VERSUS IMPLEMENTATION STRATEGY 151
5.5.3 ENHANCED REAL-VALUED FILTERING 151
5.6 SUMMARY OF THE ESTIMATION PERFORMANCE RESULTS 155
6 PERFORMANCE OF THE DVB-SH TRANSMISSION SYSTEM 157
6.1 SETUP OF THE TRANSMISSION SYSTEM 157
6.1.1 TRANSMISSION CHANNEL MODEL AND SCENARIOS 157
6.1.2 RECEIVER CONFIGURATION 158
6.2 BER COMPARISON OF CHANNEL ESTIMATION ALGORITHMS 159
6.2.1 AWGN TEST CHANNEL SCENARIO 160
6.2.2 GSM-TU TEST CHANNEL SCENARIO 161
6.2.3 SFN3 TEST CHANNEL SCENARIO 161
6.3 DOPPLER PERFORMANCE 164
6.4 SUMMARY OF THE SYSTEM PERFORMANCE RESULTS 168
7 CONCLUSIONS 169
A DEFINITIONS AND DERIVATIONS 173
A.L PROPERTIES OF A SIGNAL CORRELATION 173
A.2 THE WIENER OR MMSE SOLUTION 175
A.3 SOFT DEMAPPING 184
A.4 KRONECKER MATRIX PRODUCT 191
B ADDITIONAL MSE DIAGRAMS 193
B.L LEARNING CURVES OF ESTIMATION IN TIME DIRECTION WITH IJO = 6 193
B.2 LEARNING CURVES OF ESTIMATION IN TIME DIRECTION WITH L[2 = 4 201
B.3 LEARNING CURVES OF ESTIMATION IN FREQUENCY DIRECTION 202
B.4 ADAPTIVE 2X ID ESTIMATION 208
C ADDITIONAL BER/WER DIAGRAMS 213
C.L AWGN CHANNEL PERFORMANCE 213
C.2 GSM-TU CHANNEL PERFORMANCE 215
C.3 SFN3 CHANNEL PERFORMANCE 218
LIST OF ACRONYMS 221
LIST OF EQUATION SYMBOLS AND NOTATION 225
BIBLIOGRAPHY 237 |
| any_adam_object | 1 |
| author | Rohde, Christian |
| author_GND | (DE-588)136298567 |
| author_facet | Rohde, Christian |
| author_role | aut |
| author_sort | Rohde, Christian |
| author_variant | c r cr |
| building | Verbundindex |
| bvnumber | BV041547477 |
| ctrlnum | (OCoLC)869867890 (DE-599)DNB1044259329 |
| dewey-full | 621.38216 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 621 - Applied physics |
| dewey-raw | 621.38216 |
| dewey-search | 621.38216 |
| dewey-sort | 3621.38216 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| id | DE-604.BV041547477 |
| illustrated | Illustrated |
| indexdate | 2025-01-21T09:02:13Z |
| institution | BVB |
| isbn | 9783844024081 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-026993295 |
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| physical | X, 246 S. Ill., graph. Darst. 210 mm x 148 mm, 387 g |
| publishDate | 2013 |
| publishDateSearch | 2013 |
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| publisher | Shaker |
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| series2 | Erlanger Berichte aus Informations- und Kommunikationstechnik |
| spelling | Rohde, Christian Verfasser (DE-588)136298567 aut Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems Christian Rohde Herzogenrath Shaker 2013 X, 246 S. Ill., graph. Darst. 210 mm x 148 mm, 387 g txt rdacontent n rdamedia nc rdacarrier Erlanger Berichte aus Informations- und Kommunikationstechnik 33 Zugl.: Erlangen-Nürnberg, Univ., Diss., 2013 Adaptive Schätzung (DE-588)4342646-3 gnd rswk-swf Übertragungskanal (DE-588)4186649-6 gnd rswk-swf OFDM (DE-588)4483654-5 gnd rswk-swf Methode der kleinsten Quadrate (DE-588)4038974-1 gnd rswk-swf Filter Stochastik (DE-588)4128590-6 gnd rswk-swf Robustheit (DE-588)4126481-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content OFDM (DE-588)4483654-5 s Übertragungskanal (DE-588)4186649-6 s Adaptive Schätzung (DE-588)4342646-3 s Methode der kleinsten Quadrate (DE-588)4038974-1 s Filter Stochastik (DE-588)4128590-6 s Robustheit (DE-588)4126481-2 s DE-604 Erlanger Berichte aus Informations- und Kommunikationstechnik 33 (DE-604)BV035419901 33 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026993295&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Rohde, Christian Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems Erlanger Berichte aus Informations- und Kommunikationstechnik Adaptive Schätzung (DE-588)4342646-3 gnd Übertragungskanal (DE-588)4186649-6 gnd OFDM (DE-588)4483654-5 gnd Methode der kleinsten Quadrate (DE-588)4038974-1 gnd Filter Stochastik (DE-588)4128590-6 gnd Robustheit (DE-588)4126481-2 gnd |
| subject_GND | (DE-588)4342646-3 (DE-588)4186649-6 (DE-588)4483654-5 (DE-588)4038974-1 (DE-588)4128590-6 (DE-588)4126481-2 (DE-588)4113937-9 |
| title | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems |
| title_auth | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems |
| title_exact_search | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems |
| title_full | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems Christian Rohde |
| title_fullStr | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems Christian Rohde |
| title_full_unstemmed | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems Christian Rohde |
| title_short | Low complexity block processing algorithms for robust adaptive channel estimation in OFDM systems |
| title_sort | low complexity block processing algorithms for robust adaptive channel estimation in ofdm systems block basierte algorithmen mit niedriger komplexitat zur robusten adaptiven kanalschatzung in ofdm systems |
| title_sub | Block-basierte Algorithmen mit niedriger Komplexität zur robusten adaptiven Kanalschätzung in OFDM-Systems |
| topic | Adaptive Schätzung (DE-588)4342646-3 gnd Übertragungskanal (DE-588)4186649-6 gnd OFDM (DE-588)4483654-5 gnd Methode der kleinsten Quadrate (DE-588)4038974-1 gnd Filter Stochastik (DE-588)4128590-6 gnd Robustheit (DE-588)4126481-2 gnd |
| topic_facet | Adaptive Schätzung Übertragungskanal OFDM Methode der kleinsten Quadrate Filter Stochastik Robustheit Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026993295&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV035419901 |
| work_keys_str_mv | AT rohdechristian lowcomplexityblockprocessingalgorithmsforrobustadaptivechannelestimationinofdmsystemsblockbasiertealgorithmenmitniedrigerkomplexitatzurrobustenadaptivenkanalschatzunginofdmsystems |