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760 Index Signal/signaling (cont.) phase modulation, 345, 348 phasors of, 43–44 power, 35–36, 537, 546 properties of, 34–44 pulse amplitude modulation, 142 pulse code modulation, 151, 591 quadrature amplitude, 371, 376 quadrature modulated, 240 quadrature modulated, spectrum for, 244 random, 439 random waveform approach to, 34 (See also Waveform) real, spectral symmetry of, 48 received, 597 recovered analog, 149 satellite, 613–618 sideband, 634 skywave, 10 source, 297 spread spectrum, 396 spreading, 389 start-stop, 210 synchronization, 178, 633 technique, 511 undesired, 294 unsampled, 95, 137 upper single, 326 video, 633 voice-frequency telephone, 151 Signal-to-noise ratio (SNR), 149, 443 Signal waveshape, known, 469 Simple events, 682 Simple probability, 682–683 Single-asymmetric sideband signals, 324–328 Single-balanced mixer, 270 Single-carrier frequency, 619 Single-channel per carrier (SCPC), 590–592 Single-quadrant multiplier, 268 Single-sideband amplitude modulation suppressed carrier (SSB-AM-SC), 241 Single-sideband envelope (SSB-EV) detectable, 241 Single-sideband frequency modulation (SSB- FM), 241 Single-sideband phase modulation (SSB-PM), 241 Single-sideband square-law (SSB-SQ) detectable, 241 Single-sideband (SSB), 10, 313, 457, 535–536 Single-sided band mixer, 267 Singular function, 675 Sinusoid characteristic, 276 damped, spectrum of, 51 distributions, 703–704, 704–706 fast Fourier transform, 104 modulation, 335–337, 342, 345, 542 power spectral density of, 66–67 probability density function for, 703 spectrum of, 54 switched, spectrum of, 62 waveform, 43 waveshape, 44 Sirius XM, 583, 595 6-dB bandwidth, 189, 191 6dB rule, 150 Sky noise temperature, 617 Sky-wave propagation, 15 Sky waves, 10, 13 Slant range, 614 Slicing level, 221 Slope detector, 277 Slope overload noise, 200–203 Slotted ALOHA technique, 594 Small aperture terminals (VSAT), 594 Smart card, 626 Snell’s law, 15 Soft-decision algorithm, 24 Software radios, 297–298 Source codes, 9, 20 noise, 597, 603, 606 rate, 19 signal, 297 statistic, 495 Space-division multiple access (SDMA), 590 SPADE system, 590–592 Specialized mobile radio (SMR) frequency, 628 Spectral efficiency, 184–185, 376–378 maximum, 184 with raised cosine filtering, 376–378 Spectral folding, 95 Spectral shape, 105 Spectrum, 44–63, 164–185 of angle-modulated signals, 336–341 of Bell-type 103 modem, 361–364 binary line coding, 164–174 bit synchronization, 178–181 convolution, 60–63 definition of, 44–48 differential coding, 174–175 Dirac delta function, 52–55 energy spectral density, 49–52 eye patterns, 175–176 for fast Fourier transform, calculating, 101 flat-top sampled pulse amplitude modulation, 141 multi-level polar NRZ signals, power spectra for, 181–184 one-sided, 75 Parseval’s Theorem, 49–52 rectangular pulse, 78–79 of rectangular pulse, 56 rectangular pulses, 56–60 regenerative repeaters, 176–178 of sinusoid, 54 spectral efficiency, 184–185 square wave, 78–79 of triangular pulse, 59–60 triangular pulses, 56–60 two-sided, 45 unit step function, 52–55 Speech coding, 204–206 Split-phase encoding, 166 Splitter, installation of, 579 Spot-effective input-noise temperature, 604 Spot noise figure, 603 Spread-spectrum multiple access (SSMA), 590 Spread spectrum (SS), 388–397 direct sequence, 389–395 frequency bands, 397 frequency hopping, 396–397 overlay, 395 spread spectrum frequency bands, 397 Spreading signal, 389 Sprint, 629, 656 Sprint Nextel Corp., 628 Square-root raised cosine-rolloff Nyquist filter, 194 Square wave spectrum, 78–79 Square waves, average power for, 80 Squaring loop, 322–324 Standard cable system, 642 Standard deviation, 693 Standard (SD) format, 649 Start-stop signaling, 210 Stationarity definition of, 416–418 first-order, 417–418 wide-sense, 420, 426, 441, 451–453 Statistic multivariate, 709 priori, 495 source, 495 test, 494 Step-size algorithm, 203 Stochastic process, 415 Stochastic waveform, 7 Storage, energy, 255 Stored program control, 577 Stream, serial bit, 141 Student Solutions Manual, 7, 724 Subsidiary communications authorization (SCA), 348–349 Substation point, 614 Subsystems of communication systems, 8 Successive approximation encoding, 145 Sunspots, 13 Superheterodyne receivers, 292–296 Sure events, 683 Surface acoustic wave (SAW) filter, 257 Switch circuit, 319 Switched sinusoid, spectrum of, 62 Symbol error, 523–524 Symbol rate, 157, 367 Symmetrical digital subscriber line (SDSL), 578 Synchronization, 524–525
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Abbreviations AC ADC ADM AM ANSI AP
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DIGITAL AND ANALOG COMMUNICATION SY
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CONTENTS PREFACE LIST OF SYMBOLS xi
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Contents v 2-8 Discrete Fourier Tra
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Contents vii 4-16 Transmitters and
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Contents ix 6-10 Appendix: Proof of
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Contents xi 8-11 Wireless Data Netw
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PREFACE Continuing the tradition of
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Preface xv THE PRACTICAL APPLICATIO
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LIST OF SYMBOLS There are not enoug
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List of Symbols xix l an integer n
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List of Symbols xxi DEFINED FUNCTIO
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C h a p t e r INTRODUCTION CHAPTER
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Sec. 1-1 Historical Perspective 3 s
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Sec. 1-2 Digital and Analog Sources
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Sec. 1-4 Organization of the Book 7
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Sec. 1-6 Block Diagram of a Communi
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Sec. 1-7 Frequency Allocations 11 T
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Sec. 1-8 Propagation of Electromagn
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Sec. 1-8 Propagation of Electromagn
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Sec. 1-9 Information Measure 17 In
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Sec. 1-10 Channel Capacity and Idea
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Sec. 1-11 Coding 21 Transmitter Noi
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Sec. 1-11 Coding 23 Convolutional C
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Sec. 1-11 Coding 25 0 1 0 (00) Path
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Sec. 1-11 Coding 27 10 -1 P e = Pro
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Sec. 1-11 Coding 29 TABLE 1-4 CODIN
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Problems 31 Solution: Using Eq. (1-
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Problems 33 1-17 Using the definiti
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Sec. 2-1 Properties of Signals and
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Sec. 2-2 Fourier Transform and Spec
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( ( Sec. 2-2 Fourier Transform and
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` Sec. 2-2 Fourier Transform and Sp
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Sec. 2-3 Power Spectral Density and
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Sec. 2-3 Power Spectral Density and
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Sec. 2-4 Orthogonal Series Represen
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Sec. 2-4 Orthogonal Series Represen
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Sec. 2-5 Fourier Series 71 2-5 FOUR
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Sec. 2-5 Fourier Series 73 where th
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Sec. 2-5 Fourier Series 75 Imaginar
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Sec. 2-5 Fourier Series 77 But the
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Sec. 2-5 Fourier Series 79 The spec
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Sec. 2-5 Fourier Series 81 The PSD
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Sec. 2-6 Review of Linear Systems 8
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Sec. 2-7 Bandlimited Signals and No
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Sec. 2-8 Discrete Fourier Transform
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Sec. 2-9 Bandwidth of Signals 105 N
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Sec. 2-9 Bandwidth of Signals 107 m
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Sec. 2-9 Bandwidth of Signals 109 m
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Sec. 2-9 Bandwidth of Signals 111 w
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Sec. 2-11 Study-Aid Examples 113 2-
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Sec. 2-11 Study-Aid Examples 115 SA
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Problems 117 b. Given the RC low-pa
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Problems 119 Sinusoidal current sou
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Problems 121 w(t) A -t 2 -t 1 t 1 t
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Problems 123 where A 1 , A 2 , v1,
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Problems 125 2-57 Show that the qua
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Problems 127 ★ 2-70 Assume that v
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ƒ ƒ Problems 129 2-82 The signal
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Problems 131 2-97 Given the low-pas
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Sec. 3-2 Pulse Amplitude Modulation
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Sec. 3-3 Pulse Code Modulation 141
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PCM transmitter (analog-to-digital
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Sec. 3-4 Digital Signaling 155 wher
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Sec. 3-4 Digital Signaling 157 Eq.
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Q Sec. 3-4 Digital Signaling 159 s(
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Sec. 3-4 Digital Signaling 161 1.5
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Sec. 3-4 Digital Signaling 163 Bina
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Sec. 3-5 Line Codes and Spectra 165
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Sec. 3-6 Intersymbol Interference 1
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Sec. 3-7 Differential Pulse Code Mo
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DPCM transmitter Analog input signa
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Sec. 3-8 Delta Modulation 199 DM tr
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Sec. 3-8 Delta Modulation 201 Granu
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Sec. 3-8 Delta Modulation 203 This
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Analog input signal Low-pass filter
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Analog input signals Channel 1 (fro
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Low-level distorted TDM input Ampli
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Sec. 3-9 Time-Division Multiplexing
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1 1 1 1 1 30 digital inputs, 64 kb/
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Sec. 3-10 Packet Transmission Syste
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Sec. 3-11 Pulse Time Modulation: Pu
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Sec. 3-11 Pulse Time Modulation: Pu
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Sec. 3-13 Study-Aid Examples 225 (a
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Sec. 3-13 Study-Aid Examples 227 (d
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Problems 229 ★ 3-7 Assume that an
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Problems 231 How does the PSD for t
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Problems 233 (a) Using a PC, calcul
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Problems 235 and w 3 (t) = -(t - 1)
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C h a p t e r BANDPASS SIGNALING PR
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Sec. 4-1 Complex Envelope Represent
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Sec. 4-3 Spectrum of Bandpass Signa
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AM A c |1+m(t2| e 0, m (t) 7-1 L c
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Sec. 4-4 Evaluation of Power 245 Re
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Sec. 4-4 Evaluation of Power 247 wh
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Sec. 4-5 Bandpass Filtering and Lin
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Sec. 4-5 Bandpass Filtering and Lin
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Sec. 4-6 Bandpass Sampling Theorem
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Sec. 4-8 Classification of Filters
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Sec. 4-8 Classification of Filters
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Sec. 4-9 Nonlinear Distortion 259 T
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Sec. 4-9 Nonlinear Distortion 261 t
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Sec. 4-9 Nonlinear Distortion 263 w
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Sec. 4-10 Limiters 265 v out Ideal
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Sec. 4-11 Mixers, Up Converters, an
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Sec. 4-12 Frequency Multipliers 273
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Sec. 4-13 Detector Circuits 275 the
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Sec. 4-13 Detector Circuits 277 Det
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Sec. 4-13 Detector Circuits 279 Fre
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Sec. 4-13 Detector Circuits 281 Thi
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Sec. 4-14 Phase-Locked Loops and Fr
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Sec. 4-16 Transmitters and Receiver
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Sec. 4-17 Software Radios 297 Zero-
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Sec. 4-19 Study-Aid Examples 301 No
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Sec. 4-19 Study-Aid Examples 303 Th
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PROBLEMS Problems 305 4-1 Show that
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Problems 307 where m(t) is the modu
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Problems 309 Assume that the input
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Problems 311 4-39 Rework Prob. 4-38
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C h a p t e r AM, FM, AND DIGITAL M
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Sec. 5-1 Amplitude Modulation 315 m
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Sec. 5-1 Amplitude Modulation 317 v
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Sec. 5-2 AM Broadcast Technical Sta
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Sec. 5-3 Double-Sideband Suppressed
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Sec. 5-4 Costas Loop and Squaring L
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Sec. 5-5 Asymmetric Sideband Signal
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Sec. 5-6 Phase Modulation and Frequ
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Sec. 5-7 Frequency-Division Multipl
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Sec. 5-8 FM Broadcast Technical Sta
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Sec. 5-9 Binary Modulated Bandpass
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( ( Sec. 5-9 Binary Modulated Bandp
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Sec. 5-10 Multilevel Modulated Band
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TABLE 5-7 Data V.32BIS AND V.33 MOD
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Sec. 5-11 Minimum-Shift Keying and
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Sec. 5-12 Orthogonal Frequency Divi
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Sec. 5-12 Orthogonal Frequency Divi
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Sec. 5-13 Spread Spectrum Systems 3
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Sec. 5-15 Study-Aid Examples 397 so
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Sec. 5-15 Study-Aid Examples 399 SA
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PROBLEMS Problems 401 ★ 5-1 An AM
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Problems 403 v 3 (t) Low-pass filte
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Problems 405 5-25 A transmitter pro
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Problems 407 5-41 A frequency modul
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Problems 409 FM receiver FM detecto
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Problems 411 (d) Sketch the wavefor
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Problems 413 (a) Show that the Gaus
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Sec. 6-1 Some Basic Definitions 415
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Sec. 6-2 Power Spectral Density 425
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` Sec. 6-2 Power Spectral Density 4
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Sec. 6-3 DC and RMS Values for Ergo
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Sec. 6-4 Linear Systems 439 Example
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Sec. 6-4 Linear Systems 441 x (t) h
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Sec. 6-4 Linear Systems 443 Example
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Sec. 6-5 Bandwidth Measures 445 The
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Sec. 6-6 The Gaussian Random Proces
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Sec. 6-6 The Gaussian Random Proces
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Sec. 6-7 Bandpass Processes 451 or,
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Sec. 6-7 Bandpass Processes 453 cer
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Sec. 6-7 Bandpass Processes 455 p v
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Sec. 6-7 Bandpass Processes 457 12.
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Sec. 6-7 Bandpass Processes 459 Pro
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Sec. 6-7 Bandpass Processes 461 Thu
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Sec. 6-7 Bandpass Processes 463 f R
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` ` Sec. 6-8 Matched Filters 465 Pr
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Sec. 6-8 Matched Filters 467 Equati
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Sec. 6-8 Matched Filters 469 occur
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Sec. 6-8 Matched Filters 471 so whi
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Sec. 6-8 Matched Filters 473 r(t)=s
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Sec. 6-9 Summary 475 6-9 SUMMARY A
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` ` ` Sec. 6-10 Appendix: Proof of
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` Sec. 6-11 Study-Aid Examples 479
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Problems 481 SA6-4 PSD for a Bandpa
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Problems 483 The power of n 1 (t) i
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Problems 485 1 2 x (f) = e N 0, ƒ
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Problems 487 6-42 A bandpass WSS ra
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Problems 489 6-54 A narrowband-sign
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Problems 491 6-60 Let be a wideband
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Sec. 7-1 Error Probabilities for Bi
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Sec. 7-2 Performance of Baseband Bi
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Sec. 7-3 Coherent Detection of Band
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Sec. 7-4 Noncoherent Detection of B
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Sec. 7-5 Quadrature Phase-Shift Key
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Sec. 7-6 Comparison of Digital Sign
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Sec. 7-6 Comparison of Digital Sign
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Sec. 7-7 Output Signal-to-Noise Rat
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TABLE 7-2 COMPARISON OF ANALOG SIGN
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Sec. 7-11 Study-Aid Examples 553 1.
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Sec. 7-11 Study-Aid Examples 555 1.
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Sec. 7-11 Study-Aid Examples 557 by
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Sec. 7-11 Study-Aid Examples 559 (d
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Problems 561 7-5 A whole binary com
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Problems 563 (a) Draw a block diagr
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Problems 565 where u c is the start
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Problems 567 (c) Plot (S/N) out vs.
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C h a p t e r WIRE AND WIRELESS COM
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Sec. 8-2 Telephone Systems 571 Tele
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Sec. 8-2 Telephone Systems 573 The
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Sec. 8-2 Telephone Systems 575 Subs
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Sec. 8-3 Digital Subscriber Lines (
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Sec. 8-5 Satellite Communication Sy
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585 Microwave relay Communication s
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Sec. 8-6 Link Budget Analysis 597 t
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Sec. 8-6 Link Budget Analysis 599 T
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ƒ ƒ Sec. 8-6 Link Budget Analysis
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ƒ ƒ Sec. 8-6 Link Budget Analysis
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Sec. 8-6 Link Budget Analysis 605 o
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Sec. 8-6 Link Budget Analysis 607 o
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Sec. 8-6 Link Budget Analysis 609 w
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Sec. 8-6 Link Budget Analysis 611 U
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Sec. 8-6 Link Budget Analysis 613 E
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Sec. 8-6 Link Budget Analysis 615 2
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Sec. 8-6 Link Budget Analysis 617 F
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Sec. 8-7 Fiber-Optic Systems 619 fi
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Sec. 8-8 Cellular Telephone Systems
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TABLE 8-10 1G MAJOR ANALOG FDMA CEL
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TABLE 8-11 2G MAJOR DIGITAL CELLULA
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Sec. 8-9 Television 631 Camera Targ
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Sec. 8-9 Television 633 The composi
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Sec. 8-9 Television 635 Composite b
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Sec. 8-9 Television 637 pulses. The
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Sec. 8-9 Television 639 from the qu
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Sec. 8-9 Television 641 the x-axis
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Sec. 8-9 Television 643 1 Max. carr
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TABLE 8-13 U.S. TELEVISION AND CABL
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647 52 PP 698.00 - 704.00 390.00 -
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Sec. 8-9 Television 649 encryption
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Sec. 8-9 Television 651 Fig. 5-33,
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Sec. 8-10 Cable Data Modems 653 •
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Sec. 8-11 Wireless Data Networks 65
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Sec. 8-13 Study-Aid Examples 657 TA
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Sec. 8-13 Study-Aid Examples 659 Th
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Sec. 8-13 Study-Aid Examples 661 ca
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Problems 663 8-10 A digital TV stat
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Problems 665 ★ 8-26 A TV set is c
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Problems 667 the IF band of the sat
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A p p e n d i x MATHEMATICAL TECHNI
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A-4 Integral Calculus 671 d sin ax
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A-5 Integral Tables 673 L x2 cos x
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A-8 The Dirac Delta Function 675 A-
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A-9 Tabulation of Sa(x) = (sin x)/x
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A-10 Tabulation of Q (z) 679 z Q(z)
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B-2 Sets 681 used when conversing w
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B-3 Probability and Relative Freque
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B-5 Cumulative Distribution Functio
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B-6 Ensemble Average and Moments 69
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B-7 Examples of Important Distribut
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B-8 Functional Transformations of R
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B-8 Functional Transformations of R
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B-9 Multivariate Statistics 709 B-9
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B-9 Multivariate Statistics 711 Pro
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B-9 Multivariate Statistics 713 x 1
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B-9 Multivariate Statistics 715 Cen
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Problems 717 ★ B-4 A die is tosse
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Problems 719 B-20 Let x be a random
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Problems 721 (a) Verify that f(x 1
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A p p e n d i x USING MATLAB MATLAB
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C-3 Programming in MATLAB 725 4. At
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REFERENCES ABRAMOWITZ, M., and I. A
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References 729 BÖRJESSON P. O., an
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References 731 FIKE, J. L., and G.
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References 733 JENKINS, M. G., and
Page 1518: References 735 NYQUIST, H., “Cert
Page 1522: References 737 SHANMUGAN, K. S., Di
Page 1526: ANSWERS TO SELECTED PROBLEMS NOTE:
Page 1530: Answers to Selected Problems 741 Ch
Page 1534: Answers to Selected Problems 743 5-
Page 1538: Answers to Selected Problems 745 6-
Page 1542: INDEX A ABC, 649 Absolute bandwidth
Page 1546: Index 749 Bidirectional cable telev
Page 1550: Index 751 Demand-assigned multiple-
Page 1554: Index 753 carrier, 238 definition,
Page 1558: Index 755 link budget evaluation, 6
Page 1562: Index 757 P Packets, 594 data trans
Page 1566: Index 759 Rectangular pulse, 56, 32
Page 1572: 762 Index Two-level data, 165 Two-q
Page 1576: TABLE 2-2 SOME FOURIER TRANSFORM PA
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