Modeling of Digital Communication Systems Using SIMULINK

Arthur Giordano, PhD, is a consultant in the field of military and commercial communications specializing in wireless communications. He is a co-founder of G5 Scientific, LLC, is a senior member of the IEEE and has taught graduate communications courses. He has developed numerous models using MathWorks®’ SIMULINK®® to characterize digital communications systems. Allen Levesque, PhD, is a consultant specializing in digital communications systems, and is a partner in G5 Scientific, LLC. He has taught graduate courses in digital communications at Worcester Polytechnic Institute and is currently a Research Scientist in WPI’s Center for Wireless Information Network Studies. Dr. Levesque is an elected Fellow of the IEEE.

• Preface xiiiAcknowledgments xixAbout the Companion website xxiAbbreviations and Acronyms xxiii1 Getting Started with Simulink 11.1 Introduction 11.2 Starting a Matlab Session 21.3 Simulink Block Libraries 31.4 Building a New Simulink Model 61.4.1 Inserting Signal Source and Scope 61.4.2 Setting the Source Block Parameters 81.4.3 Setting Scope Parameters 91.5 Executing the Simulink Model 111.6 Reconfiguring the Signal Block 141.7 Sample-Based Signals 161.8 Sending Data to Workspace 181.9 Using Model Explorer 191.10 Adding Labels to Figures 211.11 Selecting Model Configuration Parameters 221.12 Summary Discussion 24Problems 252 Sinusoidal Simulink Model 272.1 A First Simulink Model 272.2 Simulink Model of Sine Wave 272.3 Spectrum of a Sine Wave 322.4 Summary Discussion 40Problems 413 Digital Communications BER Performance in AWGN (BPSK and QPSK) 433.1 BPSK and QPSK Error Rate Performance in AWGN 433.2 Construction of a Simulink Model in Simple Steps 443.3 Comparison of Simulated and Theoretical BER 563.4 Alternate Simulink Model for BPSK 583.5 Frame-Based Simulink Model 623.6 QPSK Symbol Error Rate Performance 643.7 BPSK Fixed Point Performance 683.8 Summary Discussion 73Appendix 3.A Theoretical BER Performance of BPSK in AWGN 73Problems 754 Digital Communications BER Performance in AWGN (MPSK&QAM) 794.1 MPSK and QAM Error Rate Performance in AWGN 794.2 MPSK Simulink Model 794.3 BER for Other Alphabet Sizes 834.4 Fixed Point BER for MPSK 834.5 QAM Simulink Model 854.6 QAM BER for Other Alphabet Sizes Using Average Power 904.7 QAM BER Using Peak Power 904.8 Power Amplifier Constraint Using Peak Power Selection with QAM 914.9 Summary Discussion 99Problems 1005 Digital Communications BER Performance in AWGN (FSK and MSK) 1015.1 FSK and MSK Error Rate Performance in AWGN 1015.2 BFSK Simulink Model 1015.3 MFSK Simulink Model 1075.4 MSK Simulink Model 1085.5 MSK Power Spectrum 1135.6 Summary Discussion 116Problems 1176 Digital Communications BER Performance in AWGN (BPSK in Fading) 1196.1 BPSK in Rayleigh and Rician Fading 1196.2 BPSK BER Performance in Rayleigh Fading 1196.3 BPSK BER Performance in Rician Fading 1246.4 BPSK BER Performance in Rician Fading with Multipath 1276.5 Summary Discussion 137Appendix 6.A Theoretical BER Performance of BPSK in Rayleigh Fading 137Appendix 6.B Theoretical BER Performance of BPSK in Rician Fading 138Problems 1397 Digital Communications BER Performance in AWGN (FSK in Fading) 1417.1 FSK in Rayleigh and Rician Fading 1417.2 BFSK BER Performance in Rayleigh Fading 1417.3 MFSK BER Performance in Rayleigh Fading 1427.4 BFSK BER Performance in Rician Fading 1477.5 BFSK BER Performance in Rician Fading with Multipath 1487.6 Summary Discussion 150Appendix 7.A Theoretical BER Performance of FSK in Rayleigh and Rician Fading 152Rayleigh Fading 152Rician Fading 153Problems 1548 Digital Communications BER Performance (STBC) 1578.1 Digital Modulations in Rayleigh Fading with STBC 1578.2 BPSK BER in Rayleigh Fading with STBC 1578.3 QAM BER in Rayleigh Fading with STBC 1638.4 Summary Discussion 163Appendix 8.A Space–Time Block Coding for BPSK 165Appendix 8.B Space–Time Block Coding for 16-QAM 167Problems 1699 Digital Communications BER Performance in AWGN (Block Coding) 1719.1 Digital Communications with Block Coding in AWGN 1719.2 BER Performance of BPSK in AWGN with a Binary BCH Block Code 1719.3 BER Performance of BPSK in AWGN with a Hamming Code 1759.4 BER Performance of BPSK in AWGN with a Golay(24,12) Block Code 1799.5 BER Performance of FSK in AWGN with Reed-Solomon Code 1819.6 BER Performance of QAM in AWGN with Reed-Solomon Coding 1869.7 Summary Discussion 190Problems 19210 Digital Communications BER Performance in AWGN (Block Coding and Fading) 19310.1 Digital Communications with Block Coding in Fading 19310.2 BER Performance of BPSK in Rayleigh Fading with Interleaving and a BCH Block Code 19410.3 BER Performance of BFSK in Rayleigh Fading with Interleaving and a Golay(24,12) Block Code 19510.4 BER Performance of 32-FSK in Rayleigh Fading with Interleaving and a Reed-Solomon(31,15) Block Code 20110.5 BER Performance of 16-QAM in Rayleigh Fading with Interleaving and a Reed-Solomon(15,7) Block Code 20410.6 BER Performance of 16-QAM in Rayleigh and Rician Fading with Interleaving and a Reed-Solomon(15,7) Block Code 20810.7 BER Performance of BPSK in Rayleigh Fading with Interleaving and a BCH Block Code and Alamouti STBC 21010.8 BER Performance of BFSK in Rayleigh Fading with Interleaving and a Golay(24,12) Block Code and Alamouti STBC 21510.9 BER Performance of 32-FSK in Rayleigh Fading with Interleaving and a Reed-Solomon(31,15) Block Code and Alamouti STBC 21810.10 BER Performance of 16-QAM in Rayleigh Fading with Interleaving and a Reed-Solomon (15,7) Block Code and Alamouti STBC 21910.11 Summary Discussion 223Problems 22411 Digital Communications BER Performance in AWGN and Fading (Convolutional Coding) 22511.1 Digital Communications with Convolutional Coding in AWGN and Fading 22511.2 BER Performance of Convolutional Coding and BPSK in AWGN 22611.2.1 Hard-Decision Decoding 22611.2.2 Soft-Decision Decoding 22911.3 BER Performance of Convolutional Coding and BPSK in AWGN and Rayleigh Fading with Interleaving (Soft- and Hard-Decision Decoding) 23311.4 BER Performance of Convolutional Coding and BPSK and Alamouti STBC in Rayleigh Fading with Interleaving 23911.5 Summary Discussion 243Problems 24412 Adaptive Equalization in Digital Communications 24712.1 Adaptive Equalization 24712.2 BER Performance of BPSK in Dispersive Multipath Channel Using an LMS Linear Equalizer 24812.3 BER Performance of BPSK in Dispersive Multipath Channel Using an LMS Linear Equalizer From the Simulink Library 25712.4 BER Performance of QPSK in a channel with ISI Using an LMS Linear Equalizer 25812.5 BER Performance of BPSK in Dispersive Multipath Channel Using a Decision Feedback Equalizer 26812.6 BER Performance of BPSK in Rayleigh Fading Multipath Channel Using an RLS Equalizer 27312.6.1 RLS Equalizer Description 27312.6.2 RLS Equalization in Rayleigh Fading with No Multipath 27512.6.3 RLS Equalization in Rayleigh Fading with Multipath 27912.7 Summary Discussion 280Problems 28313 Simulink Examples 28513.1 Linear Predictive Coding (LPC) for Speech Compression 28613.1.1 Speech Vocal Tract Model 28913.1.2 Prediction Coefficients Computation 28913.1.3 Speech Analysis and Synthesis 28913.2 RLS Interference Cancellation 29113.2.1 Sinusoidal Interference 29113.2.2 Low Pass Filtered Gaussian Noise 29613.3 Spread Spectrum 29813.3.1 Spread Spectrum Simulink Model without In-Band Interference 29813.3.2 Spread Spectrum Simulink Model with In-Band Interference 30313.3.3 Spread Spectrum Simulink Model with In-Band Interference and Excision 30913.4 Antenna Nulling 31313.5 Kalman Filtering 32013.5.1 Scalar Kalman Filter 32213.5.2 Kalman Equalizer 32813.5.3 Radar Tracking Using Extended Kalman Filter (EKF) 33913.6 Orthogonal Frequency Division Multiplexing 34313.7 Turbo Coding with BPSK 355Appendix A Principal Simulink Blocks Used In Chapters 1–13 363Appendix B Further Reading 369Index 371