vii TABLE OF CONTENTS CHAPTER 1 TITLE PAGE DECLARATION ii DEDICATION iii ACKNOWLEDGEMENT iv ABSTRACT v ABSTRAK vi TABLE OF CONTENTS vii LIST OF TABLES x LIST OF FIGURES xi LIST OF ABBREVIATIONS xiii LIST OF SYMBOLS xv LIST OF APPENDIX xvi INTRODUCTION 1 1.1 Project Background 1 1.2 Problem Statement 2 1.3 Research Objectives 2 1.4 Scope 2 1.5 Thesis outline 3 viii 2 3 LITERATURE REVIEW 2.1 Introduction 4 2.2 Cooperative Relay 5 2.3 Amplify and Forward 6 2.4 Orthogonal Frequency-Division Multiplexing 7 2.5 Software Defined Radio 7 2.6 Universal Software Radio Peripheral 8 2.7 NI USRP 2922 Hardware 9 2.8 LabVIEW National Instrument Software 11 2.9 Related Work 12 METHODOLOGY 14 3.1 Introduction 14 3.2 First Phase of Direct Link Development 16 3.2.1 A Source Terminal 16 3.2.2 Destination Terminal 19 3.3 4 4 Second Phase Cooperative Relay Link Development 22 3.3.1 A Relay Terminal 22 3.3.2 Destination Terminal Aided By A Cooperative Relay Link 24 3.4 Performance Measurement 25 3.5 Indoor Measurement Setup 26 3.6 Hardware Configuration 29 RESULT AND DISCUSSION 31 4.1 Introduction 31 4.2 Experimental result and analysis 31 4.3 Outdoor propagation measurement 37 ix 5 CONCLUSION AND FUTURE WORK 39 5.1 Conclusion 39 5.2 Recommendation and future work 39 REFERENCES APPENDIX A 40 42 x LIST OF TABLES TABLE NO. TITLE PAGE 3.1 Hardware’s specification used for this project 29 3.2 Indoor measurement parameter setup 30 xi LIST OF FIGURES FIGURE NO. TITLE PAGE (a) Direct Link Communication 5 (b) Relay Link Communication 5 2.2 Schematic representation of Amplify and Forward 6 2.3 Each subcarrier orthogonal to each other by overlapping 7 2.4 a) Conventional radio (b) SDR 8 2.5 NI USRP-2920 System Block Diagram 9 2.6 NI-USRP configuration utility for connecting of USRP to the 2.1 host computer 10 2.7 NI USRP 2922 device 11 2.8 Transmitter and receiver module using the LabVIEW Modulation Toolkit 12 3.1 Flowchart of the project 15 3.2 Block diagram of source terminal 16 3.3 VI block diagram OFDM at source terminal 17 3.4 VI block diagram for source terminal 18 xii 3.5 The front panel of source terminal 18 3.6 Block diagram of destination terminal 19 3.7 VI block diagram OFDM at destination terminal 20 3.8 VI block diagram for destination terminal 21 3.9 The front panel of destination terminal 22 3.10 Block diagram of relay terminal 22 3.11 VI block diagram for relay terminal 23 3.12 The front panel of relay terminal 24 3.13 Block diagram of cooperative relay link at destination terminal 24 3.14 VI block diagram of cooperative relay assisted communication at destination terminal 25 3.15 VI block diagram of computing BER 26 3.16 (a) The layout of direct link (b) The direct link experiment setup 27 3.17 (a) The layout of cooperative relay link (b) The cooperative relay link experiment setup 28 4.1 The direct link result at 20 meter from source terminal 32 4.2 The cooperative relay link result at 20 meters from source terminal 32 4.3 Comparison of direct link and cooperative relay link using inbound frequency at 100 kHz bandwidth 33 Comparison of direct link and cooperative relay link using inbound frequency at 200 kHz bandwidth 34 Cooperative relay link using outbound frequency at 100 kHz bandwidth 35 Comparison BER vs SNR for cooperative relay link with direct link 36 Verification of data measured with the theoretical calculation 37 4.4 4.5 4.6 4.7 xiii LIST OF ABBREVIATIONS 1G - First Generation 4G - Fourth Generations MIMO - Multiple Input and Multiple Output SDR - Software Defined Radio NI - National Instrument USRP - Universal Software Radio Peripheral BER - Bit Error Rate AF - Amplify & Forward OFDM - Orthogonal Frequency-Division Multiplexing SISO - Single Input Single Output LOS - Line of Sight N-LOS - Non Line of Sight eNB - enhanced Node B UE - User Equipment DF - Decode & Forward QAM - Quadrature Amplitude Modulation PSK - Phase Shift Keying ADC - Analog to Digital Converter DAC - Digital to Analog Converter DSP - Digital Signal Process FPGA - Field Programmable Device Array xiv FM - Frequency Modulation AM - Amplitude Modulation PM - Phase Modulation ASK - Amplitude Shift Keying FSK - Frequency Shift Keying PAM - Pulse-Amplitude Modulation QPSK - Quadrature Phase Shift Keying GMSK - Gaussian Minimum-Shift Keying MSK - Minimum-Shift Keying 2D - Two Dimensions 3D - Three Dimensions WARP - Wireless Open-Access Research Platform LTE - Long-Term Evolution PC - Personal Computer IP - Internet Protocol FFT - Fast Fourier transforms VI - Virtual Instrument SNR - Signal to Noise Ratio xv LIST OF SYMBOLS dB - Decibel m - meter Hz - Hertz xvi LIST OF APPENDIX APPENDIX A TITLE Datasheet NI USRP PAGE 2922 43