Title :
Power allocation for non-regenerative relaying in cognitive radio systems
Author :
Naeem, M. ; Pareek, U. ; Lee, D.C.
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
In this paper, we present a low-complexity power allocation scheme for non-regenerative (amplify and forward) relaying in cognitive radio systems. The main objective of the power allocation is to maximize the signal to noise ratio (SNR) at the destination under the constraint of acceptable interference to the primary users (PU). In this paper, we propose an iterative power allocation using SNR upper Bound (IPAUB) for non-regenerative relaying. The proposed algorithm has low computational complexity, and we verify its effectiveness through simulation results.
Keywords :
cognitive radio; communication complexity; iterative methods; radiofrequency interference; SNR; SNR upper bound; cognitive radio system; computational complexity; interference; iterative power allocation; low-complexity power allocation scheme; nonregenerative relaying; primary user; signal to noise ratio; Cognitive radio; Complexity theory; Convex functions; Interference; Relays; Resource management; Signal to noise ratio; Cognitive radio; Power Allocation; cooperative communication;
Conference_Titel :
Wireless and Mobile Computing, Networking and Communications (WiMob), 2010 IEEE 6th International Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-7743-2
Electronic_ISBN :
978-1-4244-7741-8
DOI :
10.1109/WIMOB.2010.5644859
