Trellis coding of quadrature frequency/phase modulated signals

Author

Periyalwar, Shalini S. ; Fleisher, Solomon

Author_Institution

Dept. of Electr. Eng., Tech. Univ. of Nova Scotia, Halifax, NS, Canada

Volume

10

Issue

8

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1254

Lastpage

1263

Abstract

The authors explore the trellis coding of continuous-phase quadrature frequency/phase modulated (CPQFPM) signal sets and continuous-phase FPM (CPFPM) signal sets, which are embodiments of the quadrature biorthogonal modulation (QBOM) technique. Conventional TCM and multiple TCM schemes with these modulation formats are examined using both the AWGN channel and the Rician fading channel design. Asymptotic coding gains in d²(free) are tabulated for trellis-coded rate 3/4, 5/6, and 6/7 QFPM schemes, in comparison with uncoded modulations (8AMPM, 32AMPM) and other trellis-coded modulations [TCM (2FSK/4PSK 16QAM, 64QAM), MTCM (2FSK/8PSK)] of equivalent throughput rate. Performance gains on the Rician fading channel are demonstrated by increased values of the design parameters for this channel, namely symbol diversity L_min and branch distance product P

Keywords

fading; frequency modulation; phase modulation; telecommunication channels; trellis codes; white noise; AWGN channel; CPFPM; CPQFPM; Rician fading channel; asymptotic coding gains; continuous-phase FPM; multiple TCM schemes; quadrature biorthogonal modulation; quadrature frequency/phase modulated signals; trellis coding; AWGN channels; Convolution; Convolutional codes; Frequency; Modulation coding; Multidimensional systems; Performance gain; Phase modulation; Quadrature amplitude modulation; Rician channels;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.166752

Filename

166752