Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Pairwise Optimization of Modulation Constellations Brendan Moore, Glen Takahara and Fady Alajaji
 

Summary: Pairwise Optimization of Modulation Constellations
Brendan Moore, Glen Takahara and Fady Alajaji
Dept. of Mathematics and Statistics
Queen's University
Kingston, Ontario, Canada
{brendan,takahara,fady}@mast.queensu.ca
Abstract
The design of two-dimensional signal constellations
for the transmission of binary non-uniform memoryless
sources over additive white Gaussian noise channels
is investigated. The main application of this problem
is the implementation of improved constellations where
transmitted data is highly non-uniform. A simple algo-
rithm, which optimizes a constellation by re-arranging
its points in a pairwise fashion (i.e., two points are
modified a time with the other points remaining fixed),
is presented. In general, the optimized constellations
depend on both the source statistics and the signal-
to-noise ratio (SNR) in the channel. We show that
constellations designed with source statistics considered

  

Source: Alajaji, Fady - Department of Mathematics and Statistics, Queen's University (Kingston)
Linder, Tamás - Department of Mathematics and Statistics, Queen's University (Kingston)

 

Collections: Engineering