On the Performance of Quickest Detection Spectrum Sensing: The Case of Cumulative Sum
| Author | Badawy A. |
| Author | El Shafie A. |
| Author | Khattab T. |
| Available date | 2022-11-01T09:01:32Z |
| Publication Date | 2020 |
| Publication Name | IEEE Communications Letters |
| Resource | Scopus |
| Resource | 2-s2.0-85083179495 |
| Abstract | Quickest change detection (QCD) is a fundamental problem in many applications. Given a sequence of measurements that exhibits two different distributions around a certain flipping point, the goal is to detect the change in distribution around the flipping point as quickly as possible. The QCD problem appears in many practical applications, e.g., quality control, power system line outage detection, spectrum reuse, and resource allocation and scheduling. In this letter, we focus on spectrum sensing as our application since it is a critical process for proper functionality of cognitive radio networks. Relying on the cumulative sum (CUSUM), we derive the probability of detection and the probability of false alarm of CUSUM based spectrum sensing. We show the correctness of our derivations using numerical simulations. 1997-2012 IEEE. |
| Sponsor | Manuscript received December 28, 2019; revised January 20, 2020; accepted January 20, 2020. Date of publication January 28, 2020; date of current version April 9, 2020. This work was supported by the Qatar National Research Fund, QNRF (a member of Qatar Foundation, QF) under Grant NPRP 7-923-2-344. The statements made herein are the sole responsibility of the authors. The associate editor coordinating the review of this letter and approving it for publication was F. Wang. (Corresponding author: Ahmed El Shafie.) Ahmed Badawy was with the Electrical Engineering Department, Qatar University, Doha, Qatar. He is now with the DET, Politecnico di Torino, 10129 Turin, Italy (e-mail: ahmed.badawy@polito.it). |
| Language | en |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Subject | Cognitive radio CUSUM detection Quickest detection Spectrum sensing |
| Type | Article |
| Pagination | 739-743 |
| Issue Number | 4 |
| Volume Number | 24 |
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