The Modified Feedback Decoding Algorithm: Design and Implementation of Low-Power CMOS Analogue Convolutional Decoders - Softcover

Tomatsopoulos, Billy

Softcover

ISBN 10: 3838383761 ISBN 13: 9783838383767

Publisher: LAP LAMBERT Academic Publishing, 2011

Synopsis

Convolutional decoders are very important in digital communication systems, especially in applications where very high noise levels are introduced on the information signal by wireless transmission. Examples of such systems are satellite communications, cellular telephony and digital audio broadcasting. The most commonly employed decoding method so far in convolutional codes has been the Viterbi algorithm, mainly implemented in digital hardware to accommodate large memory requirements. This book starts with an introduction to convolutional codes and basic digital communication systems, followed by an in depth study of the Viterbi algorithm and possible Viterbi decoder implementations. A recently proposed algorithm, known as the modified feedback decoding algorithm (MFDA), is then presented. The MFDA incorporates certain key features of the Viterbi algorithm while it requires no digital memory and therefore lends itself to an entirely analogue implementation. This in turn improves performance characteristics, effectively trading complexity and power dissipation against operating speed.

About this title

About the Author

Dr. Billy Tomatsopoulos received his B.Eng. degree in Electronic and Electrical Engineering from Brunel University, London, UK, in 2001, and the Ph.D. degree in Electronics and Communications from University College London, UK, in 2007. His research interests are in low-power analogue and mixed-signal IC design for portable devices.

Edition details

• Publisher: LAP LAMBERT Academic Publishing
• Publication date: 2011
• Language: English
• ISBN 10: 3838383761
• ISBN 13: 9783838383767
• Binding: Paperback
• Number of pages: 164