Title :
Subcarrier and power allocation for OFDM-based relay cognitive radio system
Author :
Lina Fan ; Jinkuan Wang ; Jing Gao
Author_Institution :
Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
fDate :
May 31 2014-June 2 2014
Abstract :
In this paper, a suboptimal subcarrier and power allocation algorithm has been developed for the orthogonal frequency division multiplexing(OFDM)-based relay cognitive radio systems. The channel capacity of secondary users is maximized while keeping the total interference introduced to primary user less than a given threshold with a specified power. Compared with the other power allocation algorithm, the proposed method can achieve greater channel capacity and has a lower complexity.
Keywords :
OFDM modulation; channel capacity; cognitive radio; relay networks (telecommunication); OFDM; channel capacity; orthogonal frequency division multiplexing; power allocation algorithm; relay cognitive radio system; secondary users; Cognitive radio; Complexity theory; Interference; OFDM; Optimization; Relays; Resource management; Cognitive radio; OFDM; and Power allocation;
Conference_Titel :
Control and Decision Conference (2014 CCDC), The 26th Chinese
Conference_Location :
Changsha
Print_ISBN :
978-1-4799-3707-3
DOI :
10.1109/CCDC.2014.6852119
