Book Cover
E-book
Author Safak, Mehmet

Title Digital Communications
Published Newark : John Wiley & Sons, Incorporated, 2017

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Description 1 online resource (909 p.)
Series New York Academy of Sciences Ser
New York Academy of Sciences Ser
Contents Intro -- Title Page -- Copyright Page -- Contents -- Preface -- List of Abbreviations -- About the Companion Website -- Chapter 1 Signal Analysis -- 1.1 Relationship Between Time and Frequency Characteristics of Signals -- 1.1.1 Fourier Series -- 1.1.2 Fourier Transform -- 1.1.3 Fourier Transform of Periodic Functions -- 1.2 Power Spectal Density (PSD) and Energy Spectral Density (ESD) -- 1.2.1 Energy Signals Versus Power Signals -- 1.2.2 Autocorrelation Function and Spectral Density -- 1.3 Random Signals -- 1.3.1 Random Variables -- 1.3.2 Random Processes
1.4 Signal Transmission Through Linear Systems -- References -- Problems -- Chapter 2 Antennas -- 2.1 Hertz Dipole -- 2.1.1 Near- and Far-Field Regions -- 2.2 Linear Dipole Antenna -- 2.3 Aperture Antennas -- 2.4 Isotropic and Omnidirectional Antennas -- 2.5 Antenna Parameters -- 2.5.1 Polarization -- 2.5.2 Radiation Pattern -- 2.5.3 Directivity and Beamwidth -- 2.5.4 Gain -- 2.5.5 Effective Receiving Area -- 2.5.6 Effective Antenna Height and Polarization Matching -- 2.5.7 Impedance Matching -- References -- Problems -- Chapter 3 Channel Modeling
3.1 Wave Propagation in Low- and Medium-Frequency Bands (Surface Waves) -- 3.2 Wave Propagation in the HF Band (Sky Waves) -- 3.3 Wave Propagation in VHF and UHF Bands -- 3.3.1 Free-Space Propagation -- 3.3.2 Line-Of-Sight (LOS) Propagation -- 3.3.3 Fresnel Zones -- 3.3.4 Knife-Edge Diffraction -- 3.3.5 Propagation Over the Earth Surface -- 3.4 Wave Propagation in SHF and EHF Bands -- 3.4.1 Atmospheric Absorption Losses -- 3.4.2 Rain Attenuation -- 3.5 Tropospheric Refraction -- 3.5.1 Ducting -- 3.5.2 Radio Horizon -- 3.6 Outdoor Path-Loss Models -- 3.6.1 Hata Model
3.6.2 COST 231 Extension to Hata Model -- 3.6.3 Erceg Model -- 3.7 Indoor Propagation Models -- 3.7.1 Site-General Indoor Path Loss Models -- 3.7.2 Signal Penetration Into Buildings -- 3.8 Propagation in Vegetation -- References -- Problems -- Chapter 4 Receiver System Noise -- 4.1 Thermal Noise -- 4.2 Equivalent Noise Temperature -- 4.2.1 Equivalent Noise Temperature of Cascaded Subsystems -- 4.3 Noise Figure -- 4.3.1 Noise Figure of a Lossy Device -- 4.4 External Noise and Antenna Noise Temperature -- 4.4.1 Point Noise Sources -- 4.4.2 Extended Noise Sources and Brightness Temperature
4.4.3 Antenna Noise Figure -- 4.4.4 Effects of Lossy Propagation Medium on the Observed Brightness Temperature -- 4.4.5 Brightness Temperature of Some Extended Noise Sources -- 4.4.6 Man-Made Noise -- 4.5 System Noise Temperature -- 4.6 Additive White Gaussian Noise Channel -- References -- Problems -- Chapter 5 Pulse Modulation -- 5.1 Analog-to-Digital Conversion -- 5.1.1 Sampling -- 5.1.2 Quantization -- 5.1.3 Encoding -- 5.1.4 Pulse Modulation Schemes -- 5.2 Time-Division Multiplexing -- 5.2.1 Time Division Multiplexing -- 5.2.2 TDM Hierarchies -- 5.2.3 Statistical Time-Division Multiplexing
Notes Description based upon print version of record
5.3 Pulse-Code Modulation (PCM) Systems
Genre/Form Electronic books
Form Electronic book
ISBN 9781119091264
1119091268