CODING SCHEME AND METHOD FOR A COLOUR-SHIFT-KEYING CONSTELLATION IN A VISIBLE-LIGHT COMMUNICATION SYSTEM

摘要

An object of the present invention is to provide a coding scheme for a colour-shift-keying constellation in a visible-light communication system whereby a minimum number of flipped bits between symbols assigned to neighbouring symbol points in the constellation is aimed. By several embodiments of the invention improved assignments of symbol values to symbol points of the constellation are suggested, which are advantageously capable of reducing a total Hamming distance between all symbol points in the constellation, thereby leading to a reduction of a bit-error ratio by a considerable amount.