Referenced Items are not available for this document.
This letter analyzes the performance of energy- detection-based spectrum sensing in a cognitive radio (CR) possessing multiple correlated antennas when the channel from the primary user (PU) to the CR is Nakagami-m faded. The probability of detection of the CR by employing square law combining (SLC) is derived by using the MGF-based approach. Special cases of equally correlated, exponentially correlated and a linear array of 2, 3 and 4 arbitrarily correlated antennas are treated. Numerical and simulation results are used to quantify the detector performance as a function of antenna correlation across the branches, number of antennas, fading severity and the time-bandwidth product.
Published in:
Communications Letters, IEEE
(Volume:16
,
Issue:
4
)
Date of Publication: April 2012
- Page(s):
- 502 - 505
- ISSN :
- 1089-7798
- INSPEC Accession Number:
- 12656149
- Digital Object Identifier :
- 10.1109/LCOMM.2012.020212.112541
- Product Type:
- Journals & Magazines
- Date of Publication :
- 10 February 2012
- Date of Current Version :
- 12 April 2012
- Issue Date :
- April 2012
- Sponsored by :
- IEEE Communications Society
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