Title :
A Condition for Optimality of Two-Dimensional Signal Constellations
Author :
Sayegh, Soheil I.
Author_Institution :
COMSAT Labs., MD
fDate :
11/1/1985 12:00:00 AM
Abstract :
We present a necessary condition that optimum two-dimensional signal constellations, used over an additive white Gaussian noise (AWGN) channel, must satisfy. Our condition is contrasted with another condition previously mentioned in the literature. A constellation of five signal points is given as an example. It is shown that the five points comprise the vertices of three equilateral triangles.
Keywords :
Signal design; AWGN channels; Additive white noise; Communications Society; Constellation diagram; Equations; Error probability; Gain; Gravity; Signal to noise ratio;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1985.1096237
