Statistical analysis of interference in cognitive networks

Author

Liu, Qiuyan ; Zhong, Zhangdui

Author_Institution

State Key Lab. of Rail Control & Safety, Beijing Jiaotong Univ., Beijing, China

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

345

Lastpage

349

Abstract

In this paper, the closed expressions for statistics, such as outage probability (OP), level crossing rate (LCR) and average fade duration (AFD) of multiple interferers in Nakagami-m fading channels in cognitive networks are presented. Besides, the interference-tolerant scenario is considered that the spatially Poisson distributed interfering secondary (unlicensed) terminals share the same frequency bands with the primary devices and are not allowed to transmit within the interference region of the primary (licensed) users. Numerical results show the effects of channel characteristics, velocity and interference region radius on the statistics. And Nakagami parameter has less effect than velocity on LCR but affects AFD more than velocity.

Keywords

Nakagami channels; Poisson distribution; cognitive radio; radiofrequency interference; statistical analysis; Nakagami-m fading channels; average fade duration; channel characteristics; cognitive networks; interference statistical analysis; interference-tolerant scenario; level crossing rate; outage probability; primary users; spatially-Poisson distributed interfering secondary terminals; Chromium; Cognitive radio; Error correction; Interference; Performance analysis; Probability; Rails; Railway safety; Statistical analysis; Statistical distributions; Cognitive networks; Poisson field; average fade duration; level crossing rate; outage probability;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5122-7

Electronic_ISBN

978-1-4244-5123-4

Type

conf

DOI

10.1109/PIMRC.2009.5449991

Filename

5449991