Title :
Outage probability analysis for cognitive radio network caused by primary users
Author :
Liu, Qi ; Zhou, Zheng ; Yang, Cheng ; Ye, Yabin
Author_Institution :
Wireless Network Lab., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Cognitive radio systems offer the opportunity to improve spectrum utilization while avoiding the interference to primary users. On the one hand, secondary users must be aware of the interference caused to primary users. Therefore, cognitive radio network should control their transmission power. On the other hand, the interference from primary network may degrade the performance of cognitive network. This paper considers the outage probability of cognitive radio network coexisting with primary users. A closed-form outage probability is derived for cognitive network with two nodes. The outage probability is mainly determined by the interference from primary users.
Keywords :
cognitive radio; probability; radiofrequency interference; closed-form outage probability analysis; cognitive radio network interference; spectrum utilization; transmission power control; Cognitive radio; Degradation; Interference; Probability; Radio control; Radio network; Resource management; Statistical distributions; Telecommunication control; Wireless networks; Cognitive radio network; interference threshold; outage probability; primary network;
Conference_Titel :
Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2373-6
Electronic_ISBN :
978-1-4244-2374-3
DOI :
10.1109/CHINACOM.2008.4685247
