Author
Ercan, Ali Özer
Publication Date
2016-03
Publication Place
-
Springer Science+Business Media
Subject
Cognitive radio, Asynchronous opportunistic spectrum access, Channel utilization
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1863-1711
Record ID
87cc5d58-d205-4c92-b020-3606bd14ee93
Library Location
Electrical & Electronics Engineering
Date
2016-03
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
This paper presents a theoretical analysis of the spectrum utilization levels in a cognitive radio system. We assume that the traffic of the primary network is bursty and asynchronous with the secondary network, which performs imperfect spectrum sensing. Collisions of the primary and the secondary packets are assumed to result in increased packet error probabilities. We present primary and secondary utilization levels under optimized secondary transmission periods for varying primary traffic characteristics and secondary sensing performance levels. The results are also validated by extensive Monte Carlo simulations. We find that an asynchronous cognitive radio network with imperfect spectrum sensing is feasible when optimized transmission periods are used. The effects of primary traffic’s burst pattern and secondary sensing performance are discussed.
DOI
10.1007/s11760-015-0782-4
Cilt
10
