Approaching capacity by equiprobable signaling on the Gaussian channel

For the additive white Gaussian noise channel, there is a gap between the channel capacity and the highest achievable rate of equiprobable uniformly spaced one-dimensional signaling. It is commonly believed that approaching channel capacity requires the constituent one-dimensional signal points to h...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on information theory 1993-09, Vol.39 (5), p.1714-1716
Main Authors: Feng-Wen Sun, van Tilborg, H.C.A.
Format: Article
Language:English
Subjects:
Additive white noise
Applied sciences
AWGN channels
Channel capacity
Constellation diagram
Euclidean distance
Exact sciences and technology
Gaussian channels
Modulation coding
Probability distribution
Signal design
Sun
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the additive white Gaussian noise channel, there is a gap between the channel capacity and the highest achievable rate of equiprobable uniformly spaced one-dimensional signaling. It is commonly believed that approaching channel capacity requires the constituent one-dimensional signal points to have a Gaussian probability distribution. It is shown that the channel capacity can be achieved by equiprobable signaling with geometrical, Gaussian-like signal sets. Construction of these signal constellations is explicitly given. This result implicates that it is possible to approach channel capacity without using any kind of shaping codes.< >
ISSN:0018-9448
1557-9654
DOI:10.1109/18.259663