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المؤلفTabesh, Amirhossein
المؤلفTaherpour, Abbas
المؤلفKhattab, Tamer
تاريخ الإتاحة2022-11-01T09:01:33Z
تاريخ النشر2012
اسم المنشورGLOBECOM - IEEE Global Telecommunications Conference
المصدرScopus
المصدر2-s2.0-84877657116
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/GLOCOM.2012.6503329
معرّف المصادر الموحدhttp://hdl.handle.net/10576/35706
الملخصIn this paper, we consider the problem of multiple antenna spectrum sensing in Cognitive Radios (CR) when some or all parameters are unknown. The Generalized Likelihood Ratio (GLR) test is the convectional method to solve the composite hypothesis testing problem in which the detection and estimation sub-problems are considered separately. In this paper, the multiple spectrum sensing problem is solved using a novel approach in which the the detection and estimation sub-problems considered jointly and the resulted detectors are optimal under finite number of samples. We assume some additional side statistical information is available for unknown parameters and as theoretical results of the novel GLR detector imply, the optimal way of using this additional side information, is to use them in the Maximum A-Posteriori (MAP) or Minimum Mean Square Error (MMSE) estimation of unknown parameters for constructing the GLR tests. The simulation results show that the newly derived GLR detectors outperform traditional GLR detectors significantly. Also for the situation that all parameters are unknown the proposed detectors are compared with the Energy Detector (ED), where the simulation results indicate that the proposed detectors not only have significantly better performance, but also are robust to practical noise mismatch. 2012 IEEE.
اللغةen
الموضوعBetter performance
Composite hypothesis testing
Detection and estimation
Generalized Likelihood Ratio Test
Maximum a posteriori
Minimum mean-square-error estimations
Statistical information
Theoretical result
Antennas
Communication
Information use
Optimization
Detectors
العنوانThe effect of additional statistical side information on multiple antenna spectrum sensing
النوعConference Paper
الصفحات1519-1525


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