Block multidimensional MPSK modulation codes with unequal error protection

Author

De Jesus, Cristiana S C M ; Portugheis, Jaime

Author_Institution

UNICAMP, Campinas, Brazil

fYear

1997

fDate

29 Jun-4 Jul 1997

Firstpage

527

Abstract

The construction of block multidimensional M-PSK modulation codes with unequal error protection (UEP) is considered. An UEP profile for the Rayleigh fading channel is obtained by partitioning four-dimensional constellations that are Cartesian products of non-uniform 8-PSK modulations or are subsets of a product of uniform modulations. New codes are constructed by using the multilevel coding technique with very simple binary component codes. These codes are matched to the VSELP codec described in the IS-54 mobile system

Keywords

Rayleigh channels; block codes; cellular radio; error correction codes; fading; modulation coding; phase shift keying; speech codecs; Cartesian products; IS-54 mobile system; Rayleigh fading channel; VSELP codec; binary component codes; block multidimensional M-PSK modulation codes; four-dimensional constellations partitioning; multilevel coding; nonuniform 8-PSK modulation; unequal error protection; uniform modulation; Codecs; Constellation diagram; Decoding; Error correction codes; Error probability; Fading; Modular construction; Modulation coding; Multidimensional systems; Protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on

Conference_Location

Ulm

Print_ISBN

0-7803-3956-8

Type

conf

DOI

10.1109/ISIT.1997.613464

Filename

613464