Outage Probability with Correlated Lognormal Interferers using Log Shifted Gamma Approximation

Author

Lam, C. L Joshua ; Le-Ngoc, Tho

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que.

fYear

0

fDate

0-0 0

Firstpage

618

Lastpage

622

Abstract

This paper presents an accurate computation of outage probability in cellular radio system by using log shifted gamma (LSG) approximation to model the sum of correlated lognormal random variables (RVs) for a wide range of dB spreads, number of interferers M, correlation coefficients r among interference components, and noise power N. The proposed LSG approximation consistently shows a better accuracy than the other existing lognormal approximation techniques, especially for small correlation coefficients r and/or dB spreads

Keywords

approximation theory; cellular radio; correlation theory; gamma distribution; log normal distribution; radiofrequency interference; LSG; cellular radio system; correlated lognormal interferer; log shifted gamma approximation; outage probability; random variable; Approximation methods; Closed-form solution; Interchannel interference; Land mobile radio cellular systems; Power engineering computing; Power system modeling; Propagation losses; Random variables; Shadow mapping; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2005 Fifth International Conference on

Conference_Location

Bangkok

Print_ISBN

0-7803-9283-3

Type

conf

DOI

10.1109/ICICS.2005.1689121

Filename

1689121