John G. Proakis, Masoud Salehi
COMMUNICATION SYSTEMS ENGINEERING (second edition)
Prentice Hall, Upper Saddle River, 2002
Hardcover, pp-801, plus X, 56.99 $
ISBN 0-13-061793-8
http://www.pearsoneduc.com

In general about the book

The objective of this book is to provide an introduction to the basic principles in the analysis and design of communications systems. It is primarily intended for use as a text for a first course in communications, either at a senior level or at a first-year graduate level. The book contains ten chapters, one appendix, references and index

Chapter content

Chapter 1 is an introduction in communication with historical review, elements of an general electrical communication systems. After that authors deal with digital communications, review of channels and on the end of this chapter there are books for further reading. Chapter 2 provides a review of basic material on signals and systems and establishes the necessary notation used in subsequent chapter. Chapter 3 treat: amplitude modulation (AM), frequency modulation (FM), phase modulation (PH) and demodulation of analog signals. Chapter 4 provides a review of probability and random processes to the extent that is necessary for a first course in communications. Chapter 5 continues the treatment of an analog communication systems by analyzing the effect of additive noise in the demodulation of AM, FM and PM signals. The phase-locked loop, which is used for estimating the phase of a sinusoidal carrier in booth analog and digital communication systems, is also described in this chapter. The chapter concludes with a treatment of the effect of transmission losses and characterization of noise sources in communication. In Chapter 6 authors introduce reader to modeling of information sources, both discrete and continuous (analog), and the basic mathematical concept of entropy and mutual information. The discussion of source encoding for discrete sources includes the Huffman coding algorithm and Lempel-Ziv algorithm. It is also describe the LPC-based source modeling method. For the case of analog sources, the authors treat both scalar and vector quantization and describe the common waveform-coding techniques, namely, PCM, DPCM and DM. As a practical examples of the source-coding methods described in this chapter the authors cite the digital speech transmission systems in the telephone plant, the digital audio recording systems as embodied in compact disc (CD) player and JPEG imagecoding standard. Digital modulation and demodulation techniques are described in Chapter 7. Binary and nonbinary modulation methods are described based on a geometric representation of signals, and their error-rate performance is evaluated and compared. This chapter also describes symbol synchronization method for digital communication systems. Chapter 8 treats digital transmission through bandlimited channel. It is shown that the effect of channel distortion is to introduce intersymbol interference (ISI), which can be eliminated or minimized by proper signal design. The use of linear and nonlinear adaptive equalizers for reducing the effect of ISI is also described. Chapter 9 treats the topic of channel coding and decoding. The benefits of coding for bandwith constrained channels are also described. The final section of this chapter presents three practical applications of coding. The last chapter of this book treats topics in wireless communications. First, the authors consider the characterization of fading multipath channels and describe the effects of such channels on wireless digital communication systems. The design of signals that are effective in multigating this type of channel distortion is also considered. Second, the authors describe the class of continuous-phase modulated signals, which are especially suitable for digital communication in wireless channel.

Useful book

This book is well written, and provides an introduction to the basic principles in the analysis and design of communication systems. It can serve as a text in either one- or two-semester course in communication system. The design of the course is whether or not the students had a prior course in probability and random process. Another important consideration is whether or not analog modulation and demodulation techniques are to be covered.