E-Book, Englisch, 132 Seiten, eBook
Reihe: SpringerBriefs in Electrical and Computer Engineering
Matin Communication Systems for Electrical Engineers
1. Auflage 2018
ISBN: 978-3-319-70129-5
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark
E-Book, Englisch, 132 Seiten, eBook
Reihe: SpringerBriefs in Electrical and Computer Engineering
ISBN: 978-3-319-70129-5
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark
Zielgruppe
Lower undergraduate
Autoren/Hrsg.
Weitere Infos & Material
1;Contents;6
2;1 Introduction to Signals, Systems and Communication;10
2.1;1.1 Introduction;10
2.2;1.2 Signals;10
2.2.1;1.2.1 Representation of Signals;12
2.2.2;1.2.2 Bandwidth of Signals;12
2.2.3;1.2.3 Evaluation of Signal Power;13
2.2.4;1.2.4 Transform of Periodic Signals;14
2.2.5;1.2.5 Fourier Transform and Spectra;15
2.2.6;1.2.6 Signal Shapes in Communication;16
2.2.7;1.2.7 Some Useful Signal Operations;16
2.3;1.3 System;18
2.3.1;1.3.1 Baseband Systems;19
2.3.2;1.3.2 Passband Systems;20
2.4;1.4 Communication System;20
2.4.1;1.4.1 Analog Versus Digital Communication System;21
2.4.2;1.4.2 Modulation and Demodulation in Communication System;22
2.4.3;1.4.3 Performance of Communication Systems;22
2.5;1.5 Sample Questions;23
3;2 Transmission Media and Propagation Mechanisms;24
3.1;2.1 Introduction;24
3.2;2.2 Wired Media: Twisted Pair;24
3.3;2.3 Wired Media: Optical Fiber;25
3.3.1;2.3.1 Structure of an Fiber Optic Cable;25
3.3.2;2.3.2 Propagation Modes of Fiber Optic Cable;26
3.3.3;2.3.3 Calculation of Number of Modes in a Fiber;27
3.3.4;2.3.4 Optical Fiber Index Profile;28
3.3.5;2.3.5 Optical Fiber’s Numerical Aperture (NA);29
3.4;2.4 Wireless Media;30
3.5;2.5 Transmission Impairments;30
3.6;2.6 Data Transmission;32
3.6.1;2.6.1 Nyquist Information Capacity;32
3.6.2;2.6.2 Shannon Capacity;33
3.7;2.7 Wireless Propagation;34
3.7.1;2.7.1 Ground Wave Propagation;34
3.7.2;2.7.2 Sky Wave Propagation;34
3.8;2.8 Propagation Mechanism;36
3.9;2.9 Sample Questions;37
3.10;Reference;37
4;3 Speech Digitization and Service Integration;38
4.1;3.1 Introduction;38
4.2;3.2 Speech Digitization;38
4.3;3.3 Pulse Code Modulation (PCM);39
4.3.1;3.3.1 Sampling;39
4.3.2;3.3.2 Quantizing;40
4.3.2.1;3.3.2.1 Signal to Quantization Noise Ratio, (SNR)Q;41
4.3.3;3.3.3 Nonuniform Quantizing: Companding;44
4.3.4;3.3.4 Encoding;44
4.4;3.4 PCM Transmission Bandwidth and the Output SNR;45
4.5;3.5 Time Division Multiplexing of Digitized Speech Channels in PSTN;46
4.5.1;3.5.1 Higher Order Multiplexing;47
4.6;3.6 Differential Pulse Code Modulation (DPCM);48
4.7;3.7 Delta Modulation;49
4.8;3.8 Integrated Services Digital Network (ISDN);50
4.9;3.9 Sample Questions;51
4.10;References;51
5;4 AM, Angle Modulation and Digital Modulation Systems;52
5.1;4.1 Introduction;52
5.2;4.2 Amplitude Modulation (AM);52
5.2.1;4.2.1 AM Spectrum;52
5.2.2;4.2.2 Double Sideband Suppressed Carrier (DSB-SC);54
5.2.3;4.2.3 AM Modulation Index;57
5.2.4;4.2.4 Power of an AM Signal;58
5.2.5;4.2.5 AM Signals Generation;60
5.2.6;4.2.6 Demodulation Methods of AM;61
5.2.6.1;4.2.6.1 Rectifier Detector;61
5.2.6.2;4.2.6.2 Envelope Detector;61
5.3;4.3 Angle Modulation (FM and PM);63
5.3.1;4.3.1 Frequency Modulation (FM);63
5.3.2;4.3.2 FM Signal Spectrum and Bandwidth;64
5.3.3;4.3.3 Power in FM Signal;66
5.3.4;4.3.4 FM Signal Generation;67
5.3.5;4.3.5 FM Demodulation-General Principles;68
5.3.5.1;4.3.5.1 Tuned Circuit;69
5.3.5.2;4.3.5.2 Phase-Locked Loop (PLL);69
5.3.6;4.3.6 Frequency Modulation Versus Amplitude Modulation;70
5.3.7;4.3.7 Phase Modulation (PM);70
5.3.8;4.3.8 Relation Between PM and FM;71
5.4;4.4 Generalized Receiver: Superheterodyne Receiver;71
5.5;4.5 Digital Modulation Techniques;72
5.5.1;4.5.1 Binary Modulated Bandpass Signaling;72
5.5.2;4.5.2 Multilevel Modulated Bandpass Signaling;75
5.6;4.6 Sample Questions;77
6;5 Telecommunication Systems;79
6.1;5.1 Introduction;79
6.2;5.2 Evolution of Modern Telecommunications;79
6.3;5.3 Simple Telephone Communication;80
6.3.1;5.3.1 Subscriber Loop Signaling;81
6.3.2;5.3.2 Signaling Tones to the Exchange from the Telephone;82
6.3.3;5.3.3 Telephone Numbering Plan;83
6.4;5.4 Telephone Call and Charging Plan;84
6.4.1;5.4.1 Telephone Call Set-up;84
6.4.2;5.4.2 Charging Plan;85
6.5;5.5 Telecommunication Network;85
6.5.1;5.5.1 Elements of Telecommunication Network;85
6.5.2;5.5.2 Technologies in Telecommunication Network;87
6.5.2.1;5.5.2.1 Transmission Systems;87
6.5.2.2;5.5.2.2 Switching Systems;88
6.5.2.3;5.5.2.3 Signalling System;89
6.6;5.6 Telecommunication Design and Implementation;90
6.6.1;5.6.1 Telecommunication Access Network Architecture: Fiber to the x;90
6.6.2;5.6.2 Metro (SONET/SDH, Metro Ethernet) and Core Network Architecture;90
6.7;5.7 Telecommunication Traffic Engineering;91
6.7.1;5.7.1 Trunking and Grade of Service;92
6.7.1.1;5.7.1.1 Traffic Model;93
6.7.1.2;5.7.1.2 Congestion;93
6.7.1.3;5.7.1.3 Erlang B formula;93
6.8;5.8 Sample Questions;95
6.9;References;95
7;6 Cellular Telephony System;96
7.1;6.1 Introduction;96
7.2;6.2 Basic Cellular Telephony;96
7.3;6.3 Cellular Telephony Evolution;97
7.4;6.4 Cellular Concept;98
7.4.1;6.4.1 Frequency Reuse;99
7.5;6.5 Hierarchical Cell Structure;101
7.6;6.6 Handoff in Cellular System;101
7.6.1;6.6.1 Types of Handoffs;103
7.6.2;6.6.2 Practical Handoff Scenarios;104
7.6.2.1;6.6.2.1 Umbrella Cell Approach;104
7.6.2.2;6.6.2.2 Cell Dragging;104
7.7;6.7 Interference and System Capacity;105
7.8;6.8 Techniques for Improving Coverage and Capacity;109
7.8.1;6.8.1 Cell Splitting;109
7.8.2;6.8.2 Sectoring;110
7.8.3;6.8.3 Microcell Zone Concept;111
7.9;6.9 Sample Questions;112
7.10;References;113
8;7 Satellite Communication Systems;114
8.1;7.1 Introduction;114
8.2;7.2 Active and Passive Satellites;115
8.3;7.3 Satellite Communications Spectrum;116
8.4;7.4 Orbits for Communication Satellites;116
8.5;7.5 Elements of Satellite Communications System;119
8.5.1;7.5.1 Space Segment;119
8.5.1.1;7.5.1.1 Satellite Payload;121
8.5.1.2;7.5.1.2 Satellite Subsystems;122
8.5.2;7.5.2 Ground Segment;123
8.6;7.6 “Link Budget” for Satellite Communication;125
8.6.1;7.6.1 Carrier-to-Noise Ratio;128
8.7;7.7 Launch Vehicles and Satellite Installation;128
8.7.1;7.7.1 Launch Vehicle;129
8.7.2;7.7.2 Satellite Installation;129
8.7.3;7.7.3 Launch of Communication Satellites;130
8.7.4;7.7.4 Launch Failure;130
8.8;7.8 Sample Questions;131
8.9;References;131
9;Index;132