Low–Density Parity–Check Codes (The MIT Press) - Softcover

Gallager, Robert G.

Softcover

ISBN 10: 0262571773 ISBN 13: 9780262571777

Publisher: MIT Press, 2003

Synopsis

This is a complete presentation of all important theoretical and experimental work done on low-density codes. Low-density coding is one of the three techniques thus far developed for efficient communication over noisy channels with an arbitrarily low probability of error. A principal result of information theory is that if properly coded information is transmitted over a noisy channel at a rate below channel capacity, the probability of error can be made to approach zero exponentially with the code length. Any practical use of this theorem, however, requires a coding scheme in which the cost of storage and computation equipment grows slowly with code length. The present book analyzes a class of coding schemes for which costs grow approximately linearly with code length. It demonstrates that error probability approaches zero exponentially with a root of the block length and cites experimental evidence that this coding scheme has profitable aplicability in many communications situations.

About this title

About the Author

Robert Gallagher is Professor Emeritus at the Research Laboratory of Electronics at MIT.

Edition details

• Publisher: MIT Press
• Publication date: 2003
• Language: English
• ISBN 10: 0262571773
• ISBN 13: 9780262571777
• Binding: Paperback
• Number of pages: 116