### Available:*

Library | Item Barcode | Call Number | Material Type | [[missing key: search.ChildField.ITEMCAT1]] | Status |
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Searching... | 30000010159394 | TK5101 L434 2007 | Open Access Book | Searching... | |

Searching... | 30000003480955 | TK5101 L434 2007 | Book | Book | Searching... |

### On Order

### Summary

### Summary

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 programsCommunications 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

Preface | p. vii |

1 An Overview of Computer Communications | p. 1 |

Further Reading | p. 3 |

2 Signal Space Representation | p. 5 |

2.1 The Vector Space | p. 6 |

2.2 The Signal Space | p. 7 |

2.3 Summary | p. 14 |

Further Reading | p. 15 |

Exercises | p. 15 |

3 Fourier Representations of Signals | p. 17 |

3.1 The Fourier Series | p. 20 |

3.2 Cosine-only Expansion of Fourier Series | p. 33 |

3.3 Fourier Series in Complex Exponentials | p. 37 |

3.4 The Fourier Transform | p. 48 |

3.5 Physical Meaning of Fourier Transform | p. 54 |

3.6 Properties of the Fourier Transform | p. 56 |

3.7 Fourier Transform Representations for Periodic Signals | p. 64 |

3.8 The Discrete Fourier Transform | p. 68 |

3.9 The Inverse Discrete Fourier Transform | p. 77 |

3.10 Physical Meaning of the Discrete Fourier Transform | p. 78 |

Further Reading | p. 92 |

Exercises | p. 92 |

4 Analog Modulation Techniques | p. 97 |

4.1 Amplitude Modulation | p. 98 |

4.2 Double-sideband Suppressed Carrier (DSB-SC) | p. 107 |

4.3 Single-sideband (SSB) Modulation | p. 111 |

4.4 Frequency Modulation (FM) | p. 119 |

4.5 Superheterodyne AM and FM Receivers | p. 127 |

4.6 Analog Modulation with Frequency Division Multiplexing | p. 131 |

4.7 Concluding Remarks | p. 132 |

Further Reading | p. 133 |

Exercises | p. 133 |

5 Digital Modulation Techniques | p. 135 |

5.1 Baseband Pulse Transmission | p. 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 Modulation | p. 165 |

5.7 Orthogonal Frequency Division Multiplexing (OFDM) | p. 169 |

5.8 OFDM in Wireless Local Area Networks | p. 181 |

5.9 Digital Audio Broadcast Using OFDM and TDMA | p. 183 |

5.10 The Role of Inner Product in Digital Modulation | p. 185 |

5.11 Review of Digital Modulation Techniques | p. 186 |

Further Reading | p. 187 |

Exercises | p. 187 |

6 Multiple-access Communications | p. 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 Problem | p. 205 |

Further Reading | p. 206 |

Exercises | p. 206 |

7 Spread-spectrum Communications | p. 209 |

7.1 The Basic Concept of Spread-spectrum | p. 209 |

7.2 Baseband Transmission for Direct-sequence Spread-spectrum (DSSS) Communications | p. 212 |

7.3 BPSK Modulation for DSSS | p. 218 |

7.4 Pseudo-random Binary Sequence | p. 220 |

7.5 Frequency-hopping Spread-spectrum | p. 222 |

7.6 Application of Spread-spectrum Techniques to Multiple-access Systems | p. 224 |

Further Reading | p. 230 |

Exercises | p. 230 |

8 Source Coding and Channel Coding | p. 231 |

8.1 Average Codeword Length of Source Coding | p. 233 |

8.2 Prefix Codes | p. 234 |

8.3 Huffman Coding | p. 235 |

8.4 Channel Coding | p. 237 |

8.5 Error-correcting Capability and Hamming Distance | p. 237 |

8.6 Hamming Codes | p. 239 |

8.7 Convolutional Codes | p. 243 |

Further Reading | p. 250 |

Exercises | p. 250 |

Appendix | p. 253 |

Bibliography | p. 255 |

Index | p. 257 |