Title :
Error control codes for QAM signalling
Author_Institution :
British Telecom Research Laboratories, Ipswich, UK
Abstract :
A class of block codes is described which exploits the properties of quadrature amplitude modulation signal constellations whose points lie on a square grid. The simplest codes in the class have block lengths 4 and 8 and offer coding gains of 3 dB and 4.5 dB, respectively.
Keywords :
amplitude modulation; error correction codes; block codes; block lengths; coding gains; error control codes; quadrature amplitude modulation; signal constellations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840043
