Title :
New 16-PSK group trellis codes
Author :
Agus, Francesco ; Benedetto, Sergio ; Garello, Roberto
Author_Institution :
Dipartimento di Elettronica, Politecnico di Torino, Italy
fDate :
9/1/1995 12:00:00 AM
Abstract :
The theory of group codes simplifies the construction of good rotationally invariant trellis codes for the additive white Gaussian noise channel. New geometrically uniform trellis codes, with spectral efficiency 3 bits/2D, based on multidimensional L×16-PSK constellations in 4, 6, and 8 dimensions, obtained by group trellis codes over nonbinary groups of the kind Z16L, are presented. Most of the codes improve, in terms of asymptotic gain and rotational invariance, the best codes known so far in the literature
Keywords :
Gaussian channels; trellis coded modulation; 16-PSK group trellis codes; additive white Gaussian noise channel; asymptotic gain; geometrically uniform trellis codes; group codes; multidimensional L×16-PSK constellations; nonbinary groups; rotational invariance; rotationally invariant trellis codes; spectral efficiency; Additive white noise; Algebra; Block codes; Convolutional codes; Error probability; Multidimensional systems; Phase shift keying; Quadrature amplitude modulation; Signal detection;
Journal_Title :
Information Theory, IEEE Transactions on
