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

fYear

2013

fDate

26-28 Nov. 2013

Firstpage

287

Lastpage

290

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2013 21st

Conference_Location

Belgrade

Print_ISBN

978-1-4799-1419-7

Type

conf

DOI

10.1109/TELFOR.2013.6716227

Filename

6716227