Wideband Sequential Spectrum Sensing with Varying Thresholds
Paper i 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

Författare

Kasra Haghighi

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Erik Agrell

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Arne Svensson

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Proceedings IEEE Global Communications Conference, Wireless Communications Symposium, Miami, Florida, USA

5683988

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

DOI

10.1109/GLOCOM.2010.5683988

ISBN

9781424456383

Mer information

Senast uppdaterat

2018-03-29