Title :
Fast decoding and LLR-computation algorithms for high-order set-partitioned 4D-QAM constellations
Author :
Shota Ishimura;Kazuro Kikuchi
Author_Institution :
Department of Electrical Engineering and Information Systems, the University of Tokyo
Abstract :
We propose digital-signal-processing algorithms that achieve fast decoding and LLR-computation for high-order set-partitioned 4D-QAM formats based on their parity-check functions. Computer-simulation results show that computational complexity of the decoder can significantly be reduced with negligible power penalty using such algorithms.
Keywords :
"Bit error rate","Modulation","Maximum likelihood decoding","Computational complexity","Parity check codes","Computer simulation"
Conference_Titel :
Optical Communication (ECOC), 2015 European Conference on
DOI :
10.1109/ECOC.2015.7341738
