Title :
Research on power allocation method in cognitive radio based on OFDM
Author :
Cong, Xu ; Jing-ning, Wang ; Yu-tao, Liu ; Xiao-xi, Chen ; Zhi-qun, Song
Author_Institution :
54th Res. Inst., CETC, Shijiazhuang, China
Abstract :
Cognitive Radio requires improving spectrum utilization, and focusing on complexity of the sub carrier power allocation algorithm in OFDM system, A power allocation method which plots the entire channel into lots sub carriers segments is proposed. It gets the maximum communication throughput by auto-adapted modulation. After improved the method, the system performance is also improved. The result showed that method can improve the spectrum efficiency.
Keywords :
OFDM modulation; cognitive radio; OFDM; autoadapted modulation; cognitive radio; power allocation method; spectrum utilization; subcarrier power allocation algorithm; Algorithm design and analysis; Bit error rate; Cognitive radio; OFDM; Phase shift keying; Resource management; Software radio; Cognitive Radio; OFDM; power allocation; water-filling algorithm;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5777473
