چکیده مقاله
Key role in cognitive radio CR process play the spectrum sensing techniques which are employed by the unlicensed secondary users in order to detect the spectrum holes It is, therefore, very important to do this with an optimal method This inspire us to consider a Uniformly Most Powerful Invariant UMPI test as an optimum invariant test for the spectrum sensing problem To this end, we develop UMPI based spectrum sensing scheme for multiple input multiple output MIMO single carrier frequency division multiple access SC FDMA cognitive radio networks In 1 , authors have solved this detection problem via the widely known generalized likelihood ratio test GLRT with no optimality property for a finite number of observations, whereas the derived UMPI test is the optimum invariant test Interestingly, we find that the UMPI test is equivalent to the GLRT obtained in 1 Hence, we show that the GLRT is an optimal test for a finite number of observations in the above spectrum sensing problem
کلیدواژهها
نویسندگان
Amir Zaimbashi
Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
شیوه ارجاع
Zaimbashi, Amir,1395,Spectrum Sensing of MIMO SC-FDMA Signals in Cognitive Radio Networks: UMP-Invariant Test,2nd National Congress of Electrical and Computer Engineering of Iran,Ramsar
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی یافته های نوین پژوهشی در مهندسی برق و علوم کامپیوتر24 اردیبهشت 1395 · رامسر