(Ebook) Communications System Laboratory 1st edition by Preetham Kumar 0429161026 9780429161025

(Ebook) Communications System Laboratory 1st edition by Preetham Kumar 0429161026 9780429161025

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ISBN-10 ‏ : ‎0429161026 

ISBN-13 ‏ : ‎ 9780429161025

Author: B. Preetham Kumar 

Communications System Laboratory offers an integrated approach to communications system teaching. Inspired by his students' expressed desire to read background theory explained in simple terms and to obtain practical computer training, Dr. Kumar has crafted this textbook, ideal for a first course in communication systems.The book merges theory with

Communications System Laboratory 1st Table of contents:

1 Types of Electronic Communication Systems
TABLE 1.1 Radio-Frequency Bands and Applications
Example
1.1 How the World Is Linked Through Coaxial, Microwave, Satellite, Cable, and Cellular Technologies
FIGURE 1.1 Communication network linking two phones.
FIGURE 1.2 World submarine cable network.
FIGURE 1.3 Iridium satellite network.
Example
FIGURE 1.4 Connection path between two cellular users in different continents.
1.2 Functional Layers in Modern Communication Systems
Example
1.3 Path Loss in Communication Links
Example
1.4 Introduction to MATLAB®/Simulink®
1.4.1 MATLAB® Basics
1.4.1.1 System Operating Commands
1.4.1.2 Numbers
1.4.1.3 Vectors and Matrices
1.4.1.4 Creating One-Dimensional and Two-Dimensional Spaces Using MATLAB®
Example
1.4.1.5 Programming with Vectors
FIGURE 1.5 MATLAB® plots for continuous-time signals.
Example
Example
1.4.2 Simulink® Basics
1.4.2.1 General Simulink® Operations
FIGURE 1.6 MATLAB® plots for discrete-time signals.
1.4.2.2 Editing, Running, and Saving Simulink® Files
1.4.2.3 Demo Files
1.5 Introduction to Equipment Used in Communication Systems
1.5.1 Sources
1.5.2 Measurement Devices
1.5.3 Radio-Frequency Integrated Circuits
Problem Solving
Computer Laboratory
FIGURE 1.7 Simulink® model for continuous-time system.
FIGURE 1.8 Simulink® model for discrete-time system.
Hardware Laboratory
FIGURE 1.9 Measurement setup for time and frequency measurements.
FIGURE 1.10 Basic RC filter circuit.
FIGURE 1.11 Measurement setup for frequency response measurement.
2 Time/Frequency Analysis of Communication Signals and Systems
2.1 Concept of Carrier in Communication Systems
TABLE 2.1 Communication Systems and Frequency Bands
Example
2.2 Signal Spectrum and the Fourier Transform
FIGURE 2.1 (a) Time and (b) frequency representations of a carrier signal.
2.2.1 Important Facts about the Fourier Transform
2.2.1.1 Continuous and Discrete Spectrum
Example
FIGURE 2.2 Periodic time signal.
TABLE 2.2 Amplitude and Phase of Fourier Coefficients
2.2.2 Power and Energy Relations in the Fourier Domain
Example
2.3 Important Communication Signals and their Frequency Spectra
FIGURE 2.3 Time and frequency patterns of (a) impulse function, (b) pulse function, (c) sine/cosine functions. (d) pulse function.
Example
FIGURE 2.4 Pulse signal.
FIGURE 2.5 Sinc function.
2.4 Frequency Analysis of Communication Systems
2.4.1 Linear Systems
FIGURE 2.6 LTI system.
FIGURE 2.7 Frequency response of low-pass filter.
Example
2.4.2 Nonlinear Systems
FIGURE 2.8 Nonlinear multiplier system.
Example
Example
FIGURE 2.9 Bandlimited message spectrum.
FIGURE 2.10 Spectrum of multiplied signal.
2.5 Practical Methods of Spectrum Analysis: DFT and IDFT
TABLE 2.3 DFT Theorems
FIGURE 2.11 Circular convolution process: (a) x((n)8) and (b) x((n − 5)8).
Example
2.6 Discrete-Time System Analysis: Circular Convolution
Example
TABLE 2.4 Circular Convolution Procedure
FIGURE 2.12 Circular convolution process: (a) x1((n)8) and (b) x2((−n)8).
2.7 Fast Fourier Transform
Example
2.8 Computation of Fast Fourier Transform with MATLAB®
FIGURE 2.13 (a) Periodic signal and (b) nonperiodic signal.
Problem Solving
Computer Laboratory
FIGURE 2.14 Periodic waveforms.
Hardware Laboratory
3 First-Generation Systems: Analog Modulation
3.1 Amplitude Modulation
Example
3.1.1 Double Sideband Modulation
FIGURE 3.1 Block diagram of an AM transmitter.
FIGURE 3.2 (a) Carrier signal and (b) spectrum of carrier signal.
FIGURE 3.3 (a) Message signal and (b) spectrum of message signal.
FIGURE 3.4 (a) AM signal and (b) spectrum of AM signal.
FIGURE 3.5 Block diagram of an AM receiver.
Example
FIGURE 3.6 Message signal for an AM system.
3.1.2 Single Sideband Modulation
Example
FIGURE 3.7 (a) Spectrum of USB signal and (b) spectrum of LSB signal.
FIGURE 3.8 Positive and negative parts of message spectrum.
FIGURE 3.9 Components of modulated spectrum.
FIGURE 3.10 (a) USB band-pass filter and (b) LSB band-pass filter.
FIGURE 3.11 Single sideband (SSB) modulator.
Example
3.2 Angle Modulation
3.2.1 Frequency Modulation
FIGURE 3.12 (a) Message signal and (b) FM signal.
3.2.2 Phase Modulation
Example
3.3 Comparison of AM and FM Modulation Systems
3.4 Noise and Filtering in Analog Modulation Systems
3.4.1 Noise Performance of AM and FM Circuits
FIGURE 3.13 Output SNR performance for AM and FM systems.
3.4.2 Filtering Techniques to Minimize Noise Effects in Communication Channels
FIGURE 3.14 Communication system with Wiener filtering.
Example
FIGURE 3.15 PSDs of signal and noise.
Problem Solving
Computer Laboratory
FIGURE 3.16 Block diagram of an AM system.
FIGURE 3.17 Block diagram of an FM system.
Hardware Laboratory
FIGURE 3.18 AM circuit.
FIGURE 3.19 FM circuit.
4 Second-Generation Systems: Digital Modulation
Example
4.1 Pulse Code Modulation
4.1.1 Time Sampling
FIGURE 4.1 Block diagram of PCM.
FIGURE 4.2 Sampling process. (a) Continuous-time signal and (b) sampled signal.
FIGURE 4.3 Practical sampling: (a) system (b) output.
Example
4.1.2 Amplitude Quantization
4.1.2.1 Uniform Quantizer
FIGURE 4.4 (a) Midtread and (b) midriser quantizers.
4.1.2.2 Nonuniform Quantizer
FIGURE 4.5 Block diagram of nonuniform quantization.
Example
Example
FIGURE 4.6 Quantizer staircase diagram.
4.1.3 Digital Encoding
TABLE 4.1 Binary Encoding Process
TABLE 4.2 Binary Decoding Process
4.1.4 Transmission Rate and Shannon's Maximum Capacity Theorem
Example
4.1.5 Line Coding and Pulse Shaping Technique
Example
4.2 Digital Modulation Systems
4.2.1 Digital AM or Phase Shift KEYING
FIGURE 4.7 Block diagram of BPSK system: (a) transmitter (b) receiver.
FIGURE 4.8 Block diagram of QPSK system: (a) transmitter (b) receiver.
FIGURE 4.9 Carrier modulation in BPSK and QPSK systems.
4.2.2 Digital FM or Frequency Shift Keying
FIGURE 4.10 Carrier modulation in FSK system.
FIGURE 4.11 Block diagram of FSK system: (a) transmitter (b) receiver.
4.2.3 Differential Phase Shift Keying
FIGURE 4.12 Carrier modulation in DPSK system.
FIGURE 4.13 Block diagram of DPSK system: (a) transmitter (b) receiver.
4.3 BER and Bandwidth Performance in Digital Modulation Systems
TABLE 4.3 Q Function Table
Example
4.3.1 Noise Correction and Filtering in Digital Modulation Systems
4.3.1.1 Error-Detecting Codes
4.3.1.2 Error-Correcting Codes
4.3.2 Equalization and Channel Compensation
FIGURE 4.14 Adaptive digital filter.
Example
Problem Solving
Computer Laboratory
FIGURE 4.15 (a) A/D and (b) D/A systems.
FIGURE 4.16 Block diagram of DPCM system.
TABLE 4.4 BPSK System Components and Equivalent Simulink® Blocks
TABLE 4.5 QPSK System Components and Equivalent Simulink® Blocks
TABLE 4.6 FSK System Components and Equivalent Simulink® Blocks
TABLE 4.7 DPSK System Components and Equivalent Simulink® Blocks
Hardware Laboratory
FIGURE 4.17 S&H circuit.
FIGURE 4.18 Measurement setup for S&H circuit.
FIGURE 4.19 Practical BPSK circuit.
FIGURE 4.20 Practical FSK circuit.
5 Third-Generation Systems: Wideband Digital Modulation
5.1 Principle of Spread Spectrum Communications
5.2 Frequency-Hopping Spread Spectrum
5.2.1 FHSS Transmission and Reception
FIGURE 5.1 Block diagram of FHSS transmission and reception.
FIGURE 5.2 FHSS hopping sequence for User 1.
FIGURE 5.3 FHSS hopping sequence for User 2.
5.2.2 FHSS Bandwidth and BER Performance
5.3 Direct-Sequence Spread Spectrum
5.3.1 DSSS Transmission and Reception
FIGURE 5.4 Block diagram of DSSS transmission and reception.
FIGURE 5.5 (a) Data sequence and (b) PN sequence for a user.
5.3.2 DSSS Bandwidth and BER Performance
Example
5.4 Advantages and Disadvantages of Spread Spectrum Systems
Problem Solving
Computer Laboratory
TABLE 5.1 FHSS Components and Equivalent Simulink® Blocks
FIGURE 5.6 Block diagram of PLL.
TABLE 5.2 DSSS Components and Equivalent Simulink® Blocks
FIGURE 5.7 Block diagram of PN sequence generator.
6 Capacity of Communication Systems and Higher Generations
6.1 Evolution of Capacity and Data Rate in Communication Systems
6.1.1 Frequency Division Multiple Access
Example
6.1.2 Time Division Multiple Access
FIGURE 6.1 Frame structure for GSM TDMA.
Example
6.1.3 Code Division Multiple Access
6.2 Fourth-Generation Systems
6.2.1 Multicarrier Approach to Modulation
FIGURE 6.2 Evolution of data rate and pulse width with system generation.
6.2.2 Principle of Orthogonal Frequency Division Multiplexing
6.2.3 OFDM Transmission and Reception
FIGURE 6.3 Three-subcarrier system in OFDM.
FIGURE 6.4 (a) Block diagram of OFDM transmitter. (b) Block diagram of OFDM receiver.
6.2.4 Advantages and Disadvantages of OFDM
6.3 Multiple-Input Multiple-Output Technology
6.3.1 Principle of MIMO Systems
FIGURE 6.5 (a) Single-input, single-output system. (b) Four-input, four-output system.
6.3.2 Analysis of Input–Output Systems
TABLE 6.1 Types of Input–Output Systems
Example
6.4 Fifth-Generation Communication Systems
Problem Solving
TABLE 6.2 OFDM Components and Equivalent Simulink® Blocks
Computer Laboratory
7 Long-Range and Short-Range Communication Networks
7.1 Wireless Local Area Networks (WLANS)
FIGURE 7.1 Overview of short-range wireless networks.
7.1.1 Types of WLAN Specifications
7.1.2 WI-FI Networks
7.1.2.1 WI-FI Hotspots and Network Types
FIGURE 7.2 (a) Infrastructure network for Wi-Fi. (b) Ad hoc network for Wi-Fi.
7.1.2.2 Advantages of WI-FI
7.2 Personal Area Networks (PANS)
7.2.1 Bluetooth
7.2.1.1 Potential of Bluetooth Technology
FIGURE 7.3 Bluetooth (a) transmitter and (b) receiver.
7.2.1.2 Applications of Bluetooth
7.2.2 Zigbee
7.2.2.1 Potential of Zigbee Technology
7.2.2.2 Applications of ZigBee
7.3 Ultra-Wideband Systems
7.3.1 Frequency Bandwidth of UWB Systems
7.3.2 UWB Transmission and Reception
FIGURE 7.4 Block diagram of UWB transmitter/receiver.
FIGURE 7.5 Pulse modulation schemes.
7.3.3 UWB Pulse Generation
FIGURE 7.6 FCC specification mask for UWB.
7.3.4 Potential Advantages and Disadvantages of UWB
FIGURE 7.7 (a) Time and (b) frequency plots of UWB pulses.
7.3.5 Applications of UWB
Example
7.4 Path Loss Calculations in Long-Range and Short-Range Networks
7.4.1 Line of Sight (LOS) Model
FIGURE 7.8 LOS propagation model.
Example
7.4.2 Practical Channel Models
7.4.3 Link Budget and Range Estimation in Wireless Links

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