Digital Communications

by John G. Proakis and Masoud Salehi

Book Overview

Revised to reflect all the current trends in the digital communications field, this all-inclusive guide delivers an outstanding introduction to the analysis and design of digital communication systems. Includes expert coverage of new topics: Turbocodes, Turboequalization, Antenna Arrays, Digital Cellular Systems, and Iterative Detection. Convenient, sequential organization begins with a look at the historyo and classification of channel models and...

• Format: Hardcover
• Language: English
• ISBN: 0070509379
• ISBN13: 9780070509375
• Release Date: January 1989
• Publisher: McGraw-Hill Companies
• Length: 905 Pages
• Weight: 3.10 lbs.
• Dimensions: 1.7" x 6.8" x 9.6"

Customer Reviews

The Reference for researchers in telecommunication

This book is a reference for researchers in telecommunication. With more than 30 pages of references, this book is an excellent review of the principal publications in telecommunication. This is not a book for students !

Great for I year grad students

Truly a comprehensive book.I have gone through Haykin and Sklar.Sklar is elementary.Haykin is not exhaustive.Proakis is a fine balance between the number of topics covered and the length of treatment of each subject.I am glad that he assumes a certain level of math as prerequisite.I loved the sections on the optimum receivers.Problems are nice and provide good practice of the theory learnt. However if you really want to understand the foundations of "Digital Communication" I recommend the book by Viterbi and Omura - McGrawhill 1979.No modern book can match the treatment in this book.It is a real master piece for years to come. All in all Proakis does a great job given the pressures to include lots of newer topics.

Very Solid on the Fundamentals of Communication Theory

This is an excellent graduate level treatment of communication theory. This book is not about communication system engineering. Rather, it is about hard core communication theory. The book follows the topical organization established in three previous editions with minor modifications, mostly new added material on channel codes and transmit-diversity through the use of space-time codes. It has the usual first chapters on probability, random process theory, the sampling theorem, and bandpass processes before it launches into the heart of the subject which starts with optimum detection of signals in classical AWGN channels, estimation of signal parameters (viz. frequency, phase, symbol time). Interestingly, the estimation of signal amplitude is not covered even though it is a critical parameter for the demodulation of QAM signals. The book next takes a minor detour to introduce Shannon theory and channel coding for error control before returning to modulation-demodulation. The band-limited channel is taken up next. Signaling waveforms that have either zero or controlled (that means small) intersymbol interference (ISI) are covered, as is the reception of signals passed through band-limited channels by means of maximum-likelihood sequence estimation (MLSE) and various equalization approaches. However the issue of tracking a time-varying channel and the required speed of adaptation for doppler spread channels, such as are encountered in UHF and microwave mobile communication systems, is not addressed. This book is about fundamentals. Higher dimensional signaling, under the guise of multi-channel and multi-carrier communication is nicely introduced, including the FFT multicarrier method used in xDSL systems. A chapter is devoted to introducing direct-sequence and frequency-hop spread-spectrum signaling and code division multiple access (CDMA). The next chapter covers the practical problems of communicating through channels that exhibit fading due to multipath. Spatial diversity receive processing and transmit diversity, aka space time coding are covered, but as mentioned above, fast fading channels are not covered. The last chapter is on multiuser communication but focuses only on channel access methods. The book would be better if the last chapter covered optimal demodulation of signals in channels that are impaired by fading plus AWGN plus cochannel interference (CCI), which would have lead naturally to a discussion of multiuser detection. The book then would have a pedagogic structure leading from the simple "known-signal-in-AWGN" channel through a hierarchy of increasingly difficult channel impairment models. Comparing the fourth edition to the first, which was published in 1983, it is gratifying to see how the book has evolved to stay up with current trends. Minor technical improvements are visible too, such as the elimination of the complementary error function erfc(.) in favor of the complementary cdf of the standard normal d

Good overview; not for newbies

I agree with the previous reviewer. Without the maths, digital signal analysis is simply impossible. One of the reviewers complained about the proof of the Nyquist theorem, based on the fourier transform. I looked it up; the proof is explicit and clear. Of course, readers who are unfamiliar with fourier transforms may find it difficult to follow the proof - they should first learn some elementary maths before reading this book. I'm glad that Proakis does not treat all the kindergarten stuff in full detail. After reading what this book has to say about equalization, error control, modulation, etc., the road to the professional literature is open.

very good reference

The best reference book for a digital communication enginner or academician.