Title :
An Efficient Multiple Relay Selection Scheme for Cognitive Radio Systems
Author :
Naeem, M. ; Lee, D.C. ; Pareek, U.
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
In this paper, we present a low-complexity Interference Aware Multiple Relay Selection (IAMRS) scheme for cognitive radio system. The main objective in selecting multiple relays is to maximize the SNR at the destination under the constraint of acceptable interference to the primary users (PU). The computational complexity of finding an optimal IAMRS by exhaustive search grows exponentially with the number of relays. In this paper, we propose an interference-aware greedy algorithm for the relay selection problem. The proposed algorithm has low computational complexity, and its effectiveness is verified through simulation results.
Keywords :
cognitive radio; communication complexity; greedy algorithms; interference; cognitive radio system; computational complexity; interference-aware greedy algorithm; low-complexity interference aware multiple relay selection scheme; primary users; Availability; Cognitive radio; Computational complexity; Computational modeling; Greedy algorithms; Interference constraints; Nearest neighbor searches; Power system relaying; Relays; Time-varying channels;
Conference_Titel :
Communications Workshops (ICC), 2010 IEEE International Conference on
Conference_Location :
Capetown
Print_ISBN :
978-1-4244-6824-9
DOI :
10.1109/ICCW.2010.5503967
