Error-Correcting Codes for QAM from Rings of Integers of a Complex Algebraic
J.Rifà and M. Villanueva
Abstract. In this paper we present new error-correcting block codes
for two-dimensional signals constellations, such as QAM (quadrature amplitude
modulation). The special interest of these new block codes is that they
can correct one error in each component of the codewords, with only one
redundant symbol. So, it gives us a transmission rate R=(N-1)/N, where
N is the length of the block codes. We also proof that these new block
codes can be constructed for any Euclidean complex quadratic field. Some
examples and simulation results when we use an additive Gaussian Channel
Key words. Number fields, QAM signals, error-correcting codes.
Registration: PIRDI-4/98, January 1998.
Retrieve PostScript document (pirdi4.ps: 178008
Retrieve DVI document (pirdi4.dvi: 72864 bytes)
Copyright © 1998 by Computer Science Department. UAB