Bandwidth efficient parallelconcatenated coding schemes
- 23 November 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (24) , 2067-2069
- https://doi.org/10.1049/el:19951447
Abstract
The authors propose a solution to the parallel concatenation of trellis codes with multilevel amplitude/phase modulations and a suitable iterative decoding structure. Examples are given for throughputs 2 bit/s/Hz with 8PSK and 16QAM signal constellations. For parallel concatenated trellis codes in the examples, rate 2/3 and 4/5, 16-state binary convolutionai codes with Gray code mapping are used. The performances of these codes are within 1 dB of the Shannon limit at a bit error probability of 10-6 for a given throughput. This outperforms all codes reported in the past for the same throughput.Keywords
This publication has 1 reference indexed in Scilit:
- Channel coding with multilevel/phase signalsIEEE Transactions on Information Theory, 1982