Power and bandwidth efficient digital communication using turbo codes in multilevel codes
- 1 September 1995
- journal article
- research article
- Published by Wiley in European Transactions on Telecommunications
- Vol. 6 (5) , 557-567
- https://doi.org/10.1002/ett.4460060511
Abstract
The recently proposed Turbo codes are applied to bandwidth efficient modulation schemes via multilevel coding. For this purpose, Turbo codes are extended for a wide range of fine tunable rates by puncturing. A straightforward derivation of iterative Turbo decoding and the concept of extrinsic information is presented. New design rules for multilevel codes with arbitrary component codes and codeword lengths are derived from information theory. Simulation results show that application of Turbo codes to properly designed multilevel coding schemes leads to digital transmission schemes with high power and bandwidth efficiency.Keywords
This publication has 18 references indexed in Scilit:
- Iterative decoding of binary block and convolutional codesIEEE Transactions on Information Theory, 1996
- Terminating the trellis of turbo-codesElectronics Letters, 1994
- Capacities of equivalent channels inmultilevel coding schemesElectronics Letters, 1994
- Multistage decoding of multilevel block M-PSK modulation codes and its performance analysisIEEE Transactions on Information Theory, 1993
- Trellis shapingIEEE Transactions on Information Theory, 1992
- Multilevel codes and multistage decodingIEEE Transactions on Communications, 1989
- Multilevel codes based on partitioningIEEE Transactions on Information Theory, 1989
- Channel coding with multilevel/phase signalsIEEE Transactions on Information Theory, 1982
- A new multilevel coding method using error-correcting codesIEEE Transactions on Information Theory, 1977
- Optimal decoding of linear codes for minimizing symbol error rate (Corresp.)IEEE Transactions on Information Theory, 1974