
Low-Density Parity-Check Codes
Robert G. Gallager
(Author)Description
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.
Product Details
Publisher | MIT Press |
Publish Date | March 17, 2003 |
Pages | 116 |
Language | English |
Type | |
EAN/UPC | 9780262571777 |
Dimensions | 8.8 X 5.9 X 0.4 inches | 0.3 pounds |
About the Author
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