Efficient multi-carrier spread spectrum transmission:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Düsseldorf
VDI-Verl.
2001
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Fortschritt-Berichte / VDI : Reihe 10, Informatik, Kommunikationstechnik
Nr. 685 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Ulm, Univ., Diss., 2001 |
| Beschreibung: | XII, 162 S. graph. Darst. : 21 cm |
| ISBN: | 3183685108 |
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| adam_text | 2.
FORTSCHRITT-BERICHTE VDI
REIHE 10
INFORMAFIK/
KOMMUNIKATION
NR. 685
DIPL.-LNG. ANDREAS BURY,
DRESDEN
EFFICIENT
MULTI-CARRIER
SPREAD SPECTRUM
TRANSMISSION
VDI VERLAG
CONTENTS
MATHEMATICAL NOTATION VIII
LIST OF ABBREVIATIONS XI
1 INTRODUCTION 1
2 DEFINITION OF CONSIDERED TRANSMISSION SYSTEMS 4
2.1 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) 5
2.1.1 BRIEFHISTORY ; 5
2.1.2 MULTIPLEXING TRANSMISSION 6
2.1.3 PRINCIPLE OF OFDM 9
2.1.4 IMPLEMENTATION OF OFDM 14
2.1.5 AN ALTERNATIVE OFDM IMPLEMENTATION 20
2.1.6 VECTOR / MATRIX NOTATION 22
2.1.7 FURTHER REMARKS 23
2.2 CODE DIVISION MULTIPLEXING (CDM) OVER PARALLEL FLAT FADING CHANNELS
24
2.2.1 DIVERSITY TRANSMISSION 24
2.2.2 CODE DIVISION MULTIPLEXING 27
2.2.3 SELECTED ORTHOGONAL SPREADING MATRICES 29
2.2.4 DIVERSITY AND FORWARD ERROR CORRECTING CODING 31
2.3 MULTI-CARRIER SPREAD SPECTRUM (MC-SS) BASED ON OFDM AND CDM 32
2.3.1 MULTI-CARRIER CODE DIVISION MULTIPLEXING (MC-CDM) 34
2.3.2 MULTIPLE ACCESS WITH USER SEPARATION IN FREQUENCY: CDM-OFDMA 35
2.3.3 MULTIPLE ACCESS WITH USER SEPARATION BY CODE: OFDM-CDMA 37
2.3.4 FOURIER SPREADING AS A SPECIAL CASE 39
2.4 SUMMARY 42
VI CONTENTS
3 DIVERSITY OF SPREADING TRANSFORMS 44
3.1 TRANSMISSION MODEL 45
3.2 PERFECT ORTHOGONAL TRANSFORMS 48
3.3 ROTATED TRANSFORMS . 49
3.4 ASYMPTOTIC CRITERIA FOR TRANSFORM SELECTION 51
3.5 COMPARISON OF TRANSFORMS 53
3.5.1 BOUNDS ON THE BIT ERROR RATE 54
3.5.2 MAXIMUM LIKELIHOOD DETECTION 55
3.5.3 SUBOPTIMUM DETECTION 56
3.5.4 INFLUENCE OF THE SPREADING BLOCK SIZE 58
3.5.5 INFLUENCE OF THE TRANSMIT SYMBOL ALPHABET 58
3.6 SUMMARY 60
4 POWER DISTRIBUTION OF TRANSMIT SIGNALS 62
4.1 COMPUTATION OF THE POWER DISTRIBUTION 64
4.1.1 DISCRETE-TIME COMPUTATION 67
4.1.2 CONTINUOUS-TIME COMPUTATION 70
4.2 COMPUTATION OF THE PEAK-TO-AVERAGE POWER RATIO (PAPR) 71
4.3 PAPR COMPARISON FOR MC-CDM AND DERIVED MULTIPLE ACCESS SCHEMES 72
4.3.1 MC-CDM / DOWNLINK OF MULTIPLE ACCESS SCHEMES 72
4.3.2 UPLINK OF MULTIPLE ACCESS SCHEMES 74
4.4 POWER DISTRIBUTION COMPARISON 77
4.5 SUMMARY 79
5 DETECTION METHODS FOR BLOCK TRANSMISSIONS 81
5.1 GENERAL BLOCK TRANSMISSION MODEL 82
5.1.1 MODIFIED MODEL WITH CHANNEL MATCHED FILTER 87
5.1.2 ORTHOGONALLY SPREAD TRANSMISSION AS A SPECIAL CASE 89
5.2 OPTIMUM DETECTION 93
5.2.1 MINIMUM BLOCK ERROR PROBABILITY 94
5.2.2 MINIMUM BIT ERROR PROBABILITY 95
5.3 LINEAR EQUALIZERS IN LITERATURE 97
5.3.1 INVERSE FILTER OR ZERO FORCING (ZF) EQUALIZER 98
5.3.2 MINIMUM MEAN SQUARE ERROR (MMSE) EQUALIZER 99
5.4 UNBIASED MINIMUM VARIANCE (UMV) EQUALIZERS 100
CONTENTS VII
5.4.1 SINGLE-SYMBOL ESTIMATION 100
5.4.2 MULTI-STAGE BLOCK EQUALIZER WITH SINGLE-SYMBOL FEEDBACK 110
5.4.3 MULTI-STAGE BLOCK EQUALIZER WITH SYMBOL-BLOCK FEEDBACK 116
5.4.4 LOW-COMPLEXITY BLOCK EQUALIZER FOR ORTHOGONALLY SPREAD
TRANSMISSION .... 119
5.4.5 INTERFACING WITH AN ERROR CORRECTING DECODER 122
5.4.6 COMPLEXITY COMPARISON FOR SCALAR AND VECTOR-VALUED IMPLEMENTATION
.... 124
5.4.7 RELATION TO RECURRENT NEURAL NETWORK (RNN) EQUALIZERS 126
5.5 PERFORMANCE COMPARISON 128
5.5.1 LINEAR EQUALIZERS 128
5.5.2 MULTI-STAGE EQUALIZERS 130
5.6 SUMMARY 137
6 SUMMARY AND CONCLUSIONS 140
A UMV EQUALIZERS FOR VECTOR TRANSMIT SYMBOLS 143
A.I SINGLE-SYMBOL ESTIMATION 144
A.I.I LINEAR ESTIMATION 144
A. 1.2 ESTIMATION AFTER INTERFERENCE SUBTRACTION 145
A. 1.3 DETERMINATION OF HYPOTHETICAL INTERFERENCE AND VIRTUAL NOISE
VARIANCE .... 145
A. 1.4 ASSUMPTION OF UNCORRELATED VIRTUAL NOISE 146
A.2 MULTI-STAGE BLOCK EQUALIZER WITH SINGLE-SYMBOL FEEDBACK 146
A.2.1 COMPUTATION WITH REDUCED COMPLEXITY 148
A.3 MULTI-STAGE BLOCK EQUALIZER WITH SYMBOL-BLOCK FEEDBACK 149
B REAL-VALUED REPRESENTATION OF COMPLEX MULTIPLICATIONS 151
C COMPUTATION OF A-POSTERIORI PROBABILITIES 153
BIBLIOGRAPHY 155
|
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| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
| edition | Als Ms. gedr. |
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| isbn | 3183685108 |
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| physical | XII, 162 S. graph. Darst. : 21 cm |
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| spelling | Bury, Andreas Verfasser aut Efficient multi-carrier spread spectrum transmission Andreas Bury Als Ms. gedr. Düsseldorf VDI-Verl. 2001 XII, 162 S. graph. Darst. : 21 cm txt rdacontent n rdamedia nc rdacarrier Fortschritt-Berichte / VDI : Reihe 10, Informatik, Kommunikationstechnik Nr. 685 Zugl.: Ulm, Univ., Diss., 2001 OFDM (DE-588)4483654-5 gnd rswk-swf Fadingkanal (DE-588)4489172-6 gnd rswk-swf Bandspreiztechnik (DE-588)4181277-3 gnd rswk-swf Mehrträgerverfahren (DE-588)4509481-0 gnd rswk-swf Mehrfachempfang (DE-588)4290765-2 gnd rswk-swf CDMA (DE-588)4358900-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Bandspreiztechnik (DE-588)4181277-3 s OFDM (DE-588)4483654-5 s CDMA (DE-588)4358900-5 s Mehrträgerverfahren (DE-588)4509481-0 s Mehrfachempfang (DE-588)4290765-2 s Fadingkanal (DE-588)4489172-6 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009810267&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Bury, Andreas Efficient multi-carrier spread spectrum transmission OFDM (DE-588)4483654-5 gnd Fadingkanal (DE-588)4489172-6 gnd Bandspreiztechnik (DE-588)4181277-3 gnd Mehrträgerverfahren (DE-588)4509481-0 gnd Mehrfachempfang (DE-588)4290765-2 gnd CDMA (DE-588)4358900-5 gnd |
| subject_GND | (DE-588)4483654-5 (DE-588)4489172-6 (DE-588)4181277-3 (DE-588)4509481-0 (DE-588)4290765-2 (DE-588)4358900-5 (DE-588)4113937-9 |
| title | Efficient multi-carrier spread spectrum transmission |
| title_auth | Efficient multi-carrier spread spectrum transmission |
| title_exact_search | Efficient multi-carrier spread spectrum transmission |
| title_full | Efficient multi-carrier spread spectrum transmission Andreas Bury |
| title_fullStr | Efficient multi-carrier spread spectrum transmission Andreas Bury |
| title_full_unstemmed | Efficient multi-carrier spread spectrum transmission Andreas Bury |
| title_short | Efficient multi-carrier spread spectrum transmission |
| title_sort | efficient multi carrier spread spectrum transmission |
| topic | OFDM (DE-588)4483654-5 gnd Fadingkanal (DE-588)4489172-6 gnd Bandspreiztechnik (DE-588)4181277-3 gnd Mehrträgerverfahren (DE-588)4509481-0 gnd Mehrfachempfang (DE-588)4290765-2 gnd CDMA (DE-588)4358900-5 gnd |
| topic_facet | OFDM Fadingkanal Bandspreiztechnik Mehrträgerverfahren Mehrfachempfang CDMA Hochschulschrift |
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