Wideband Sequential Spectrum Sensing with Varying Thresholds
Paper in proceeding, 2010
In this contribution, time varying threshold sequential
detectors are employed for energy detection-based spectrum
sensing in low-SNR regimes. Sequential detection is proven to be
faster (on average) than any other multi-sample detector for a set
of given probabilities of detection and false-alarm. In this report,
exact performance of a sequential detector for spectrum sensing
is analyzed using the direct method. The theoretical results
presented herein are verified with Monte-Carlo simulations. It
is shown that for a SNR of −10 dB, among tests with Wald and
triangular thresholds with similar probabilities of mis-detection
and false-alarm, triangular performs 54% faster in terms of
maximum detection time (90 percentile).
Sequential Analysis
Cognitive Radio
Spectrum Sensing
Sequential Probability Ratio Test
UWB and DAA
Author
Kasra Haghighi
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Erik Agrell
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Arne Svensson
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Proceedings IEEE Global Communications Conference, Wireless Communications Symposium, Miami, Florida, USA
5683988
9781424456383 (ISBN)
Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
DOI
10.1109/GLOCOM.2010.5683988
ISBN
9781424456383