DocumentCode :
588094
Title :
Impact of the number of antennas and distances among users on cognitive radio networks
Author :
Hung Tran ; Zepernick, Hans-Jurgen ; Hoc Phan
Author_Institution :
Blekinge Inst. of Technol., Karlskrona, Sweden
fYear :
2012
fDate :
10-12 Oct. 2012
Firstpage :
136
Lastpage :
140
Abstract :
In this paper, we study the impact of the number of antennas and distances among users on the performance of a spectrum sharing system. In particular, we assume that a secondary transmitter is equipped with a single antenna while both secondary receiver and primary receiver have multiple antennas. Also, it is assumed that the secondary users are subject to the peak interference power constraint. On this basis, the cumulative distribution function and probability density function for the signal-to-noise ratio are derived for Rayleigh fading channels. Moreover, using these results, we obtain closed-form expressions for the outage probability, ergodic capacity and an exact expression for symbol error probability. These formulas allow us to examine the impact of the number of antennas of the SU-Rx, the PU-Rx and distance among users on the system performance. Finally, Monte-Carlo simulations are provided to verify our analytical results.
Keywords :
Monte Carlo methods; Rayleigh channels; cognitive radio; error statistics; Monte-Carlo simulations; PU-Rx; Rayleigh fading channels; SU-Rx; closed-form expressions; cognitive radio networks; cumulative distribution function; ergodic capacity; multiple antennas; outage probability; primary receiver; probability density function; secondary receiver; secondary transmitter; secondary users; signal-to-noise ratio; single antenna; spectrum sharing system; symbol error probability; Antennas; Capacity planning; Cognitive radio; Error probability; Interference; MIMO; Signal to noise ratio;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Technologies for Communications (ATC), 2012 International Conference on
Conference_Location :
Hanoi
ISSN :
2162-1020
Print_ISBN :
978-1-4673-4351-0
Type :
conf
DOI :
10.1109/ATC.2012.6404246
Filename :
6404246
Link To Document :
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