The effect of interfering links on cognitive dual-hop networks: Imperfect CSI analysis

Author

Nguyen Hong Giang ; Vo Nguyen Quoe Bao ; Hung Nguyen-Le

Author_Institution

Telecommun. Univ., Nha Trang, Vietnam

fYear

2014

Firstpage

631

Lastpage

636

Abstract

This paper studies the performance of cognitive underlay decode-and-forward relay systems, where relay and destination nodes are equipped with multiple antennas and channel state information (CSI) of interference links are assumed to be imperfect. To analyze the effect of imperfect CSI on the system performance, the system outage probability has been derived in closed-form expression. Monte Carlo simulations are performed to verify the analysis results under various system conditions.

Keywords

cognitive radio; decode and forward communication; radiofrequency interference; relay networks (telecommunication); Monte Carlo simulation; closed form expression; cognitive dual hop network; decode and forward relay system; imperfect CSI analysis; imperfect channel state information; imperfect interference link; interfering link; multiple antenna destination; multiple antenna relay; outage probability; Outage probability; cognitive radio; cooperative communications; decode-and-forward; imperfect channel state information; maximum ratio combining; multiple-antenna receivers; relaying; selection combining; spectrum-sharing;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2014 International Conference on

Print_ISBN

978-1-4799-6955-5

Type

conf

DOI

10.1109/ATC.2014.7043465

Filename

7043465