This paper describes the derivation of detection and false-alarm probabilities for energy detectors in cognitive radio networks when a sensing node of the secondary system has correlated multiple antennas. The sensing performance degradation due to the antenna correlation is then investigated based on the performance analysis. The conclusions of the analysis are verified by numerical simulation results.
Bibliographical noteFunding Information:
Manuscript received December 23, 2008; revised April 03, 2009. First published April 21, 2009; current version published May 28, 2009. This work was supported by Korea Science and Engineering Foundation through the NRL Program (Grant R0A-2007-000-20043-0) and by the MKE (Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the IITA (Institute for Information Technology Advancement) (IITA-2009-C1090-0902-0005). The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Martin Haardt.
All Science Journal Classification (ASJC) codes
- Signal Processing
- Electrical and Electronic Engineering
- Applied Mathematics