Skip to main content

Non-equiprobable signaling on the Gaussian channel

Publication ,  Journal Article
Calderbank, AR; Ozarow, LH
December 1, 1990

Summary form only given, as follows. Many signaling schemes for the Gaussian channel are based on finite-dimensional lattices. The signal constellation consists of all lattice points within a region R, and the shape of this region determines the average signal power. In the limit as N → ∞, the shape gain the N-sphere over the N-cube approaches πe/6 = 1.53 dB. It is shown that the full asymptotic shape gain can be realized in any fixed dimension by nonequiprobable signaling. Shaping schemes that achieve a significant fraction of the available asymptotic shaping gain are described. The peak-to-average-power ratio of these schemes is superior to that of equiprobable signaling schemes based on Voronoi regions of multidimensional lattices. The new shaping schemes admit a simple staged demodulation procedure.

Duke Scholars

Publication Date

December 1, 1990

Start / End Page

145
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Calderbank, A. R., & Ozarow, L. H. (1990). Non-equiprobable signaling on the Gaussian channel, 145.
Calderbank, A. R., and L. H. Ozarow. “Non-equiprobable signaling on the Gaussian channel,” December 1, 1990, 145.
Calderbank AR, Ozarow LH. Non-equiprobable signaling on the Gaussian channel. 1990 Dec 1;145.
Calderbank, A. R., and L. H. Ozarow. Non-equiprobable signaling on the Gaussian channel. Dec. 1990, p. 145.
Calderbank AR, Ozarow LH. Non-equiprobable signaling on the Gaussian channel. 1990 Dec 1;145.

Publication Date

December 1, 1990

Start / End Page

145