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E-raamat: Analytical Evaluation of Nonlinear Distortion Effects on Multicarrier Signals

(Instituto de Telecomunicaões, Lisboa, Portugal; Departamento de Matemática, Instiuto Superior de Engenharia do Porto, Portugal), (Instituto de Telecomunicações, FCT-UNL, Lisboa, Portugal)
  • Formaat: 220 pages
  • Ilmumisaeg: 22-Apr-2015
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781351231688
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Analytical Evaluation of Nonlinear Distortion Effects on Multicarrier SignalsSuurem pilt
  • Formaat: 220 pages
  • Ilmumisaeg: 22-Apr-2015
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781351231688
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Due to their ability to support reliable high quality of service as well as spectral and power efficiency,multicarrier modulation systems have found increasing use in modern communications services. However, one of the main drawbacks of these systems is their vulnerability to nonlinear distortion effects.Analytical Evaluation of Nonlinear Distortion Effects on Multicarrier Signals details a unified approach to well-known analytical results on memoryless nonlinearities that takes advantage of the Gaussian behavior of multicarrier signals.

Sharing new insights into the behavior of nonlinearly distorted multicarrier signals, the book begins with a review of the fundamental principles of multicarrier transmission and multicarrier-based systems. Next, it covers well-known results on nonlinear distortion of Gaussian signals and examines the accuracy of the use of Gaussian approximation for evaluating nonlinear effects. It also considers the performance of various multicarrier-based systems in the presence of different types of nonlinear devices.

  • Describes general clipping and filtering techniques to reduce the envelope fluctuations of multicarrier signals
  • Analyzes quantization effects caused by the numerical accuracy required in the DFT computations
  • Discusses quantization requirements of analog-to-digital converters
  • Redefines loading techniques to take into account nonlinear distortion issues on adaptive multicarrier systems
  • Examines the impact of nonlinear signal processing techniques for reducing the envelope fluctuations of OFDMA signals
  • Presents performance results for all the discussed applications

The book covers the essential principles of multicarrier modulations, including OFDM modulations and other multicarrier schemes. It describes multicarrier modulation systems that will be used in next-generation communications systems and also provides new insight into the behavior of nonlinearly distorted multicarrier signals.

Illustrating the application of the nonlinear distortion analysis techniques presented, the book provides you with a wide range of analytical tools to assess the effects of nonlinearities on the performance of multicarrier-based schemes.

List of Abbreviations ix
List of Symbols xiii
1 Introduction 1(6)
1.1 Book Structure
4(3)
2 Multicarrier Transmission 7(36)
2.1 Orthogonal Multicarrier Signals
8(3)
2.2 Orthogonal Frequency Division Multiplexing
11(10)
2.2.1 Transmitter Structure
12(6)
2.2.2 Receiver Structure
18(3)
2.3 Other Multicarrier Schemes
21(12)
2.3.1 Discrete Multitone
21(2)
2.3.1.1 Bandpass Approach
21(2)
2.3.1.2 Baseband Approach
23(1)
2.3.2 Orthogonal Frequency Division Multiple Access
23(3)
2.3.2.1 Downlink Transmission
24(2)
2.3.2.2 Uplink Transmission
26(1)
2.3.3 Multicarrier Code Division Multiple Access
26(5)
2.3.3.1 Downlink Transmission
28(1)
2.3.3.2 Uplink Transmission
29(2)
2.3.4 Software Radio
31(2)
2.4 Characterization of the Transmitted Signals
33(10)
2.4.1 Spectral Characterization
33(3)
2.4.1.1 Other Multicarrier Schemes
35(1)
2.4.2 Time Domain Characterization
36(4)
2.4.2.1 Other Multicarrier Schemes
37(3)
2.4.3 Envelope Fluctuations
40(3)
3 Nonlinear Distortion of Gaussian Signals 43(22)
3.1 Memoryless Nonlinearities Characterization
44(10)
3.1.1 Memoryless Nonlinear Characteristics
45(2)
3.1.2 Cartesian Memoryless Nonlinear Characteristics
47(2)
3.1.3 Polar Memoryless Nonlinear Characteristics
49(5)
3.2 Memoryless Nonlinear Distortion of Gaussian Signals
54(4)
3.3 Cartesian Memoryless Nonlinearities with Gaussian Inputs
58(3)
3.4 Polar Memoryless Nonlinearities with Gaussian Inputs
61(4)
4 Accuracy of the Gaussian Approximation for the Evaluation of Nonlinear Effects 65(22)
4.1 Exact Characterization of Nonlinearly Distorted Multicarrier Signals
66(9)
4.1.1 Nonlinear Characteristic of Order 3
67(5)
4.1.2 Nonlinear Characteristic of Order 5
72(2)
4.1.3 Generalization
74(1)
4.2 Analytical Characterization of Nonlinearly Distorted Multicarrier Signals Using the Gaussian Approximation
75(3)
4.3 Accuracy of the Gaussian Approximation
78(4)
4.4 Discussion
82(5)
5 Nonlinear Effects in Specific Multicarrier Systems 87(68)
5.1 Clipping and Filtering Techniques
89(21)
5.1.1 Transmitter Structure
89(3)
5.1.2 Signal Characterization along the Signal Processing Chain
92(5)
5.1.3 Numerical Results
97(3)
5.1.4 Analytical BER Performance
100(3)
5.1.5 Performance Results
103(5)
5.1.6 Complementary Remarks
108(2)
5.2 Impact of Quantization Effects on Multicarrier Signals
110(9)
5.2.1 Quantization Effects on Multicarrier Modulated Signals
111(2)
5.2.2 Statistical Characterization of the Transmitted and Received Signals
113(3)
5.2.3 Performance Results
116(3)
5.3 Impact of Quantization Effects on Software Radio Signals
119(7)
5.3.1 ADC Quantization in Software Radio Architectures
120(2)
5.3.2 Statistical Characterization of the Quantized Signals
122(1)
5.3.3 Performance Results
123(3)
5.4 Loading Techniques with Nonlinear Distortion Effects
126(13)
5.4.1 Nonlinear Signal Processing for Multicarrier Signals
126(4)
5.4.2 Loading Techniques
130(4)
5.4.2.1 Single Carrier Analysis
130(1)
5.4.2.2 Multicarrier Analysis
131(2)
5.4.2.3 Waterfilling
133(1)
5.4.2.4 Leke—Cioffi Algorithm
133(1)
5.4.3 Loading with Nonlinear Distortion Effects
134(1)
5.4.4 Performance Results
135(4)
5.5 Impact of Nonlinear Signal Processing on OFDMA Signals
139(10)
5.5.1 Nonlinear Effects on OFDMA Signals
139(1)
5.5.2 Statistical Characterization of the Transmitted Signals
140(3)
5.5.3 Signal-to-Interference Ratio Levels on the Received Signals
143(1)
5.5.3.1 Multiple Users
143(1)
5.5.3.2 Single User
144(1)
5.5.4 Performance Results
144(5)
5.5.4.1 Downlink Transmission
145(2)
5.5.4.2 Uplink Transmission
147(2)
5.6 Discussion
149(6)
A Output Autocorrelation for Polar Memoryless Nonlinearities with Gaussian Inputs 155(6)
B Analytical Results for Specific Nonlinearities 161(12)
B.1 Cartesian Memoryless Nonlinearities
161(5)
B.2 Polar Memoryless Nonlinearities
166(7)
C Exact Characterization of a Polar Memoryless Nonlinearity with Characteristic g(R) = R5 173(6)
D Approximated Symbol Error Rate for Cross QAM Constellations 179(6)
References 185(12)
Index 197
Theresa Araújo, Rui Dinis
Lisainfo e-raamatute kohta Lisainfo e-raamatute kohta
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