Performance Optimization of Digital Communications Systems

Table of contents

1. Cover
2. Half Title
3. Title Page
4. Copyright Page
5. Author
6. Dedication
7. Table of Contents
8. 1 Introduction
   1. 1.1 About This Book
   2. 1.2 Acknowledgments
   3. References
9. 2 Method for Determining the Quality of a Communication Channel
   1. 2.1 Background
   2. 2.2 Main Idea Illustrated and a Minimization Principle
   3. 2.3 Phase-Spanning Nyquist Set Test
   4. 2.4 Frequency-Spanning Nyquist Set Test
   5. 2.5 Determining the Noise Level in a Nonbaseband System
   6. 2.6 Measuring the Level of a Useful Signal
   7. 2.7 Conclusions
   8. References
10. 3 Digital Communications in Stealth Mode
    1. 3.1 Background
    2. 3.2 Stealth Communications Transceiver
    3. 3.3 Test on Randomness
    4. 3.4 BER Performance
    5. 3.5 Using a Decoy Signal
    6. 3.6 Conclusions
    7. References
11. 4 Pulse Shape Optimization
    1. 4.1 Background
    2. 4.2 Pulse Shape Optimization Criterion
    3. 4.3 SO-Pulse and L-Pulse
    4. 4.4 Phi-Pulse
    5. 4.5 BER Test
    6. 4.6 Approximation of Pulses by SAS
    7. 4.7 Data Windows Corresponding to the Pulses Introduced
    8. 4.8 Raised Pulses
    9. 4.9 Conclusions
    10. References
12. 5 Optimal Phase Shifters for Peak-to-Average Power Ratio Reduction in Multicarrier Communication Systems
    1. 5.1 Background
    2. 5.2 Optimal Phase Shifters and the Constant Envelope Principle
    3. 5.3 Flat Spectrum Chirps
    4. 5.4 Simulations of Multicarrier Transmission
    5. 5.5 Possible Applications of FSC
    6. 5.6 Conclusions
    7. References
13. 6 Optimization of the Automatic Repeat Request Parameters in Quadrature Amplitude Modulation Channels
    1. 6.1 Background
    2. 6.2 Derivation of the BER of a QAM Channel with FEC and ARQ
    3. 6.3 ARQ Performance Gain
    4. 6.4 A Method of Estimating the ARQ Gain
    5. 6.5 A Procedure for Determining the Optimum ARQ Parameters
    6. 6.6 Extension of the Method for the Case of a Slowly Fading Channel
    7. 6.7 Determining the Average Number of Transmissions and the Uncoded SER, Given the SER Past FEC/ARQ
    8. 6.8 Determining an Average Fraction of Erroneous Bits in an Erroneous QAM Symbol
    9. 6.9 Conclusions
    10. References
14. 7 Optimal Selection of Error Correction and Retransmission Parameters in Multichannel Communications Systems
    1. 7.1 Background
    2. 7.2 Performance Gain Due to FEC/ARQ in Discrete Multitone Systems
    3. 7.3 Mean-Field Approximation for Multicarrier Channel with ARQ
    4. 7.4 An Approximate Solution of Equation 7.2.2
    5. 7.5 Optimization of FEC and ARQ Parameters for Current ADSL Standards
    6. 7.6 Conclusions
    7. References
15. 8 Bit Error Rate of Self-Similar Constellations in ADSL Systems
    1. 8.1 Background
    2. 8.2 Self-Similarity of ADSL QAM Constellations
    3. 8.3 Error Probability Function of an ADSL QAM Constellation Encoder
    4. 8.4 Nonsquare Constellations: An Asymptotic Analysis
    5. 8.5 Comparison with Numerical Simulations
    6. 8.6 Conclusions
    7. References
16. 9 Throughput Optimization in a General Duplex Communications System with FEC and ARQ
    1. 9.1 Background
    2. 9.2 A System Model with FEC and ARQ
    3. 9.3 Joint Optimization of FEC and ARQ Parameters in Both Directions
    4. 9.4 Conclusions
    5. References
17. 10 A Quantitative Procedure of Optimizing the MAC Packet Size in TCP/IP-Compliant Networks
    1. 10.1 Background
    2. 10.2 Statement of the Problem of Optimizing the MAC Packet Size in TCP/IP-Compliant Networks
    3. 10.3 Derivation of Equation 10.2.6
    4. 10.4 Determining the Optimal MAC Packet Size in the Case of a Variable MAC Frame Length
    5. 10.5 Solution to the Problem and Decision Diagrams
    6. 10.6 Extension of the Method in the Case of a Fixed MAC Frame Length
    7. 10.7 Extension of the Method to Account for Error Detection and Retransmission in the TCP/IP Protocol
    8. 10.8 Application to 802.11-Compliant Networks
    9. 10.9 Conclusions
    10. References
18. Appendices
    1. A Optimization Puzzles
    2. B Matlab Scripts for the Bandwidth Optimization Problem
    3. C More about Flat Spectrum Chirps
19. Index