Error rate analysis of DCPSK over generalized fading channels

Author

Smadi, Mahmoud A. ; Prabhu, Vasant K.

Author_Institution

Dept. of Electr. Eng., Texas Univ., Arlington, TX, USA

Volume

1

fYear

2004

fDate

21-25 March 2004

Firstpage

65

Abstract

Binary and quaternary -differential coherent phase-shift keying (DBPSK, DQPSK) are widely used modulations in digital wireless systems. However, a simple expression for the probability density function (pdf) of the decision statistic and the error rate performance of such systems under post-detection equal gain combining (KGC) and generalized fading channels are not currently available in the literature. This paper presents a discussion of these subjects in detail. Our analytic study is based on a convergent infinite series for the sum of independent random variables that has been derived using Fourier series approximation method. Generalized fading channels including Rayleigh, Ricean, and Nakagami-m are investigated. The channels are assumed to be independent, frequency-nonselective, and slowly varying. The accuracy of our results is verified through simulation.

Keywords

Fourier series; Rayleigh channels; Rician channels; approximation theory; differential phase shift keying; diversity reception; error analysis; error statistics; mobile radio; probability; signal detection; DCPSK; Fourier series approximation method; Nakagami-m channels; Rayleigh channels; Ricean channels; differential binary coherent phase-shift keying; differential quaternary coherent phase-shift keying; digital wireless systems; diversity reception; equal gain combining; error probability; error rate analysis; generalized fading channels; independent random variables; infinite series convergence; probability density function; Digital modulation; Diversity reception; Error analysis; Fading; Fourier series; Performance gain; Phase modulation; Phase shift keying; Probability density function; Random variables;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311519

Filename

1311519