Cover image for Communications engineering : essentials for computer scientists and electrical engineers
Communications engineering : essentials for computer scientists and electrical engineers
Publication Information:
Singapore : John Wiley & Sons /IEEE Press, 2007
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30000010159394 TK5101 L434 2007 Open Access Book
30000003480955 TK5101 L434 2007 Book Book

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Communications technologies increasingly pervade our everydaylives, yet the underlying principles are a mystery to most. Evenamong engineers and technicians, understanding of this complexsubject remains limited. However, there is undeniably a growingneed for all technology disciplines to gain intimate awareness ofhow their fields are affected by a more densely networked world.

The computer science field in particular is profoundly affectedby the growing dominance of communications, and computer scientistsmust increasingly engage with electrical engineering concepts. Yetcommunications technology is often perceived as a challengingsubject with a steep learning curve.

To address this need, the authors have transformedclassroom-tested materials into this accessible textbook to givereaders an intimate understanding of fundamental communicationsconcepts. Readers are introduced to the key essentials, and eachselected topic is discussed in detail to promote mastery. Engineersand computer scientists will gain an understanding of concepts thatcan be readily applied to their respective fields, as well asprovide the foundation for more advanced study ofcommunications.

Provides a thorough grounding in the basics by focusing onselect key concepts Clarifies comprehension of the subject via detailed explanationand illustration Helps develop an intuitive sense of both digital and analogprinciples Introduces key broadcasting, wireless and wired systems Helps bridge the knowledge gap between software and electricalengineering Requires only basic calculus and trigonometry skills Classroom tested in undergraduate CS and EE programs

Communications Engineering by Lee, Chiu, and Lin willgive advanced undergraduates in computer science and beginningstudents of electrical engineering a rounded understanding ofcommunications technologies. The book also serves as a keyintroduction to specialists in industry, or anyone who desires aworking understanding of communications technologies.

Author Notes

Richard Chia Tung Lee, Dept. of Computer Science, NationalChi Nan University, Taiwan.

Mao-Ching Chiu, Dept. of Electrical Engineering, NationalChung Cheng University, Taiwan.

Jung-Shan Lin, Dept. of Electrical Engineering, NationalChi Nan University, Taiwan.

Reviews 1

Choice Review

Communications Engineering represents an ambitious project. In less than 300 pages, Lee, Lin (both, National Chi Nan Univ., Taiwan), and Chiu (National Chung Cheng Univ., Taiwan) try to cover a wide variety of areas in both analog and digital communications, including coding (usually a separate book), spread spectrum, and multiple access systems. Although this broad coverage makes sections brief, the authors still attempt to include a reasonable amount of mathematical detail. In fact, the first 96 pages of the book consist of background math topics, including signal space and Fourier representation. Although the authors emphasize use of the book by computer science majors, much of it would be intimidating, and they acknowledge this by prefacing some sections with "The following discussion may be too advanced for computer science students." The book could have benefitted from more thorough, consistent editing; e.g., some sentence structures are awkward, "analog" is sometimes spelled "analogue," and some text is gender neutral while some is gender specific. The authors are quite knowledgeable and provide some valuable insights. On the negative side, some sections could use more discussion of the advantages and disadvantages of a particular communication technique. Examples within the chapters are helpful, while end-of-chapter problems are minimal. Summing Up: Recommended. Researchers/faculty and professionals. M. S. Roden emeritus, California State University, Los Angeles

Table of Contents

Prefacep. vii
1 An Overview of Computer Communicationsp. 1
Further Readingp. 3
2 Signal Space Representationp. 5
2.1 The Vector Spacep. 6
2.2 The Signal Spacep. 7
2.3 Summaryp. 14
Further Readingp. 15
Exercisesp. 15
3 Fourier Representations of Signalsp. 17
3.1 The Fourier Seriesp. 20
3.2 Cosine-only Expansion of Fourier Seriesp. 33
3.3 Fourier Series in Complex Exponentialsp. 37
3.4 The Fourier Transformp. 48
3.5 Physical Meaning of Fourier Transformp. 54
3.6 Properties of the Fourier Transformp. 56
3.7 Fourier Transform Representations for Periodic Signalsp. 64
3.8 The Discrete Fourier Transformp. 68
3.9 The Inverse Discrete Fourier Transformp. 77
3.10 Physical Meaning of the Discrete Fourier Transformp. 78
Further Readingp. 92
Exercisesp. 92
4 Analog Modulation Techniquesp. 97
4.1 Amplitude Modulationp. 98
4.2 Double-sideband Suppressed Carrier (DSB-SC)p. 107
4.3 Single-sideband (SSB) Modulationp. 111
4.4 Frequency Modulation (FM)p. 119
4.5 Superheterodyne AM and FM Receiversp. 127
4.6 Analog Modulation with Frequency Division Multiplexingp. 131
4.7 Concluding Remarksp. 132
Further Readingp. 133
Exercisesp. 133
5 Digital Modulation Techniquesp. 135
5.1 Baseband Pulse Transmissionp. 136
5.2 Amplitude-shift Keying (ASK)p. 141
5.3 Binary Phase-shift Keying (BPSK)p. 146
5.4 Binary Frequency-shift Keying (FSK)p. 151
5.5 Quadriphase-shift Keying (QPSK)p. 157
5.6 Quadrature Amplitude Modulationp. 165
5.7 Orthogonal Frequency Division Multiplexing (OFDM)p. 169
5.8 OFDM in Wireless Local Area Networksp. 181
5.9 Digital Audio Broadcast Using OFDM and TDMAp. 183
5.10 The Role of Inner Product in Digital Modulationp. 185
5.11 Review of Digital Modulation Techniquesp. 186
Further Readingp. 187
Exercisesp. 187
6 Multiple-access Communicationsp. 189
6.1 Frequency-division Multiple Access (FDMA)p. 190
6.2 Time-division Multiple Access (TDMA)p. 192
6.3 Code-division Multiple Access (CDMA)p. 196
6.4 Carrier-sense Multiple Access (CSMA)p. 204
6.5 The Multiplexing Transmission Problemp. 205
Further Readingp. 206
Exercisesp. 206
7 Spread-spectrum Communicationsp. 209
7.1 The Basic Concept of Spread-spectrump. 209
7.2 Baseband Transmission for Direct-sequence Spread-spectrum (DSSS) Communicationsp. 212
7.3 BPSK Modulation for DSSSp. 218
7.4 Pseudo-random Binary Sequencep. 220
7.5 Frequency-hopping Spread-spectrump. 222
7.6 Application of Spread-spectrum Techniques to Multiple-access Systemsp. 224
Further Readingp. 230
Exercisesp. 230
8 Source Coding and Channel Codingp. 231
8.1 Average Codeword Length of Source Codingp. 233
8.2 Prefix Codesp. 234
8.3 Huffman Codingp. 235
8.4 Channel Codingp. 237
8.5 Error-correcting Capability and Hamming Distancep. 237
8.6 Hamming Codesp. 239
8.7 Convolutional Codesp. 243
Further Readingp. 250
Exercisesp. 250
Appendixp. 253
Bibliographyp. 255
Indexp. 257