Title :
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
Abstract :
In this paper, we develop an optimal power allocation algorithm 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; OFDM-based relay; channel capacity; cognitive radio system; orthogonal frequency division multiplexing; power allocation; primary user; secondary users; Cognitive radio; Complexity theory; Interference; OFDM; Optimization; Relays; Resource management; Power allocation; cognitive radio; relay;
Conference_Titel :
Signal Processing, Communication and Computing (ICSPCC), 2013 IEEE International Conference on
Conference_Location :
KunMing
DOI :
10.1109/ICSPCC.2013.6664020
