DocumentCode
2295351
Title
Resource allocation for relay assisted cognitive radio networks
Author
Zafar, Ammar ; Chen, Yunfei ; Alouini, Mohamed-Slim ; Radaydeh, Redha M.
Author_Institution
Div. of Phys. Sci. & Eng., King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia
fYear
2012
fDate
1-4 April 2012
Firstpage
658
Lastpage
662
Abstract
In this paper, we present two optimal resource allocation schemes that maximize throughput and symbol correct rate (SCR). The throughput and SCR are derived. The derived throughput and SCR are optimized with respect to the sensing time, the source transmission power and the relay transmission power. Numerical results show that the optimal sensing time is dependent on the primary user´s signal-to-noise-ratio (SNR). They also show that SCR increases with increase in the number of relays.
Keywords
cognitive radio; spread spectrum communication; optimal resource allocation scheme; relay assisted cognitive radio networks; relay transmission power; signal-to-noise-ratio; source transmission power; symbol correct rate; Interference; Relays; Resource management; Sensors; Signal to noise ratio; Throughput; Thyristors;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location
Shanghai
ISSN
1525-3511
Print_ISBN
978-1-4673-0436-8
Type
conf
DOI
10.1109/WCNC.2012.6214450
Filename
6214450
Link To Document