Analytical distribution of linearly modulated cochannel interferers

Author

Chiani, Marco

Author_Institution

Dipartimento di Elettronica, Inf. e Sistemistica, Bologna Univ., Italy

Volume

45

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

73

Lastpage

79

Abstract

The closed form expressions of the probability density function (PDF), the cumulative distribution function (CDF) and the characteristic function of the disturbance due to a multilevel cochannel interferer are obtained. The analysis assumes L-level amplitude shift keying (L-ASK) modulated signals, nonreturn to zero (NRZ) pulses, transmission over a distortion-free channel and matched filter reception. The distribution for the multiple cochannel interferers case can then be obtained by means of the characteristic function method. As an application example, the closed-form expression of the error-floor for an L-ASK system in the presence of one cochannel interferer is given. The comparison with respect to the Gaussian approximation is also discussed

Keywords

amplitude shift keying; cochannel interference; filtering theory; matched filters; multipath channels; probability; statistical analysis; Gaussian approximation; NRZ pulses; amplitude shift keying; analytical distribution; characteristic function method; closed form expressions; cumulative distribution function; distortion free channel; error floor; linearly modulated cochannel interferers; matched filter reception; modulated signals; multilevel cochannel interferer; multipath environment; multiuser applications; nonreturn to zero pulses; probability density function; Amplitude modulation; Amplitude shift keying; Distortion; Distribution functions; Filtering theory; Matched filters; Optical signal processing; Probability density function; Pulse modulation; Signal analysis;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.554288

Filename

554288