Digital communication system having a punctured convolutional coding system and method
US5668820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0041
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital communication system having a punctured convolutional coding system and method. The digital communication system includes a coder for coding a digital input to be transmitted from a transmitter and a decoder for decoding the coded input received at the receiver. The coder includes a convolutional coding circuit of rate k/n for outputting a convolutional coded output and a puncturing circuit for puncturing the convolutionally coded output to achieve a punctured code rate of z/q, where z=.gamma.k. The puncturing circuit punctures the convolutional coded output according to a deleting pattern chosen to have a bit length of L=p.gamma.n, where p.gtoreq.2. The puncturing circuit outputs a punctured output at punctured code rate of z/q and the punctured output is transmitted to the receiver. The receiver decodes the transmitted punctured output and outputs a decoded output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.