Evaluation of 4RRC-filtered ODQPSK in mobile radio communications

Author

He, Jun ; Goud, Paul A. ; Englefield, Colin G.

Author_Institution

Telecommunications Res. Lab., Edmonton, Alta., Canada

Volume

1

fYear

1993

fDate

19-21 May 1993

Firstpage

210

Abstract

The performance of 4´th-root-raised-cosine-filtered offset differential quadrature phase shift keying (4RRC-filtered ODQPSK) for mobile radio applications is studied. It has been shown that, using a simple binary DPSK receiver, such a scheme outperforms π/4-DQPSK in a linear AWGN channel. In the present work, its bit-error-rate performance using a multiple-symbol differential detection (MSDD) receiver is investigated by means of computer simulation. It is found that, with MSDD, ODQPSK has nearly the same error performance as π/4-DQPSK in a linear AWGN channel. In a hard-limited channel, it has a significant E_b/N_o gain over π/4-DQPSK. ODQPSK with MSDD is comparable to π/4-DQPSK in a fast Rayleigh fading environment

Keywords

Gaussian noise; Rayleigh channels; demodulation; differential phase shift keying; error statistics; fading; filtering theory; land mobile radio; quadrature phase shift keying; white noise; binary DPSK receiver; bit-error-rate; computer simulation; fast Rayleigh fading; fourth root raised cosine filter; linear AWGN channel; mobile radio; multiple-symbol differential detection; offset differential quadrature phase shift keying; performance; AWGN channels; Computer errors; Differential quadrature phase shift keying; Fading; Land mobile radio; Maximum likelihood detection; Mobile communication; Quadrature phase shift keying; Radiofrequency amplifiers; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 1993., IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-0971-5

Type

conf

DOI

10.1109/PACRIM.1993.407186

Filename

407186