Title :
Ergodic capacity of spectrum sharing cognitive radio with MRC diversity and Nakagami fading
Author :
Blagojevic, Vesna M. ; Ivanis, Predrag N.
Author_Institution :
Dept. on Telecommun., Univ. of Belgrade, Belgrade, Serbia
Abstract :
Spectrum sharing cognitive radio with multiple antennas at the primary user receiver and maximal ratio combining applied at the secondary user receiver is analyzed. The closed-form expression is derived for the ergodic capacity of the secondary link with an arbitrary number of receive antennas and Nakagami fading distribution. Analytical expressions are derived for both cases of peak and average interference constraint at the primary user receiver. The correctness of analytical results is verified by using an independent simulation model.
Keywords :
Nakagami channels; cognitive radio; diversity reception; radio receivers; radiofrequency interference; receiving antennas; MRC diversity; Nakagami fading distribution; closed-form expression; ergodic capacity; independent simulation model; interference constraint; maximal ratio combining; multiple antennas; primary user receiver; receive antennas; secondary link; secondary user receiver; spectrum sharing cognitive radio; Diversity reception; Interference; Nakagami distribution; Rayleigh channels; Receiving antennas; Ergodic capacity; Maximum ratio combining; Nakagami fading; average and peak interference constraint;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6214277
