Title :
Analysis of SIR for spectrum sharing system with OSTBC in Nakagami fading
Author :
Jarrouj, Jiana ; Blagojevic, Vesna ; Ivanis, Predrag
Author_Institution :
Sch. of Electr. Eng., Univ. of Belgrade, Belgrade, Serbia
Abstract :
This paper analyzes spectrum sharing cognitive radio system where orthogonal space time block codes (OSTBCs) are applied at the secondary user (SU) link. The influence of primary user´s (PU) interference on the performances of the SU are studied in Nakagami fading environment. We derive exact closed-form expressions for probability density function and moments of the SIR (signal-to-interference ratio) of SU. Ergodic capacity is evaluated for different system parameters. The accuracy of the analytical expressions is verified using Monte Carlo simulation method.
Keywords :
Monte Carlo methods; Nakagami channels; cognitive radio; orthogonal codes; probability; radio spectrum management; space-time block codes; Monte Carlo simulation method; Nakagami fading; OSTBC; SIR; cognitive radio system; ergodic capacity; exact closed form expressions; orthogonal space time block codes; primary user; probability density function; secondary user link; signal to interference ratio; spectrum sharing system; Analytical models; Fading; Interference; Nakagami distribution; Probability density function; Receiving antennas; Ergodic capacity; Nakagami fading; Orthogonal space time block codes (OSTBCs); Signal-to-interference ratio (SIR); Spectrum sharing;
Conference_Titel :
Telecommunications Forum (TELFOR), 2013 21st
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-1419-7
DOI :
10.1109/TELFOR.2013.6716227
