Title :
Shaping using variable-size regions
Author :
Livingston, Jay N.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
Constellation shaping is extended to provide shaping gains without resorting to high-dimensional constellations. This is accomplished by dividing the constellation into unequally sized constellations, and selecting these constellations on an equiprobable basis. A design example is provided, demonstrating the simplicity and power of the approach
Keywords :
encoding; coding; constellation shaping; shaping gains; signal constellations; variable-size regions; Automatic voltage control; Codes; Constellation diagram; Constraint theory; Couplings; Decoding; Gain; Gaussian channels; Information theory; Memoryless systems;
Journal_Title :
Information Theory, IEEE Transactions on
