Title :
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
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;
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
DOI :
10.1109/PIMRC.2009.5449991
