Abstract
In this paper, we analyze the spectrum-sensing performance of a cooperative cognitive radio (CR) network consisting of a number of CR nodes and a fusion center (FC). We introduce the «log-average-SNR ratio» that relates the average SNR of the CRnode- FC link and that of the primary-user-CR-node link. Assuming that the FC utilizes theK-out-of-N rule as its decision rule, we derive exact expressions for the sensing gain and the coding gain - parameters used to characterize the CR network performance at the high SNR region. Based on these results, we determine ways to optimize the performance of the CR network.
Original language | English |
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Article number | 7575797 |
Pages (from-to) | 311-319 |
Number of pages | 9 |
Journal | Journal of Communications and Networks |
Volume | 18 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jun 2016 |
Keywords
- Coding gain
- cognitive radio (CR)
- log-average-SNRratio
- missing-detection probability
- sensing gain
- spectrum sensing
ASJC Scopus subject areas
- Information Systems
- Computer Networks and Communications