Title :
Power Efficiency Optimization of OFDM Systems in the Presence of Nonlinear Distortion
Author :
Yu, Hua ; Kok, Chi-Wah ; Wei, Gang
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
Abstract :
This paper investigates the tradeoff problem between power efficiency and nonlinear distortion of amplifiers in OFDM systems. One power efficiency figure-of-merit of the whole system is suggested and used as the objective function to find the optimum working point of the power amplifier. An accurate computation of the nonlinear distortion power is also derived. The simulation results showed that the operating point of PA that provides the optimal trade-off can be easily picked from the proposed method
Keywords :
OFDM modulation; nonlinear distortion; power amplifiers; OFDM system; nonlinear distortion; orthogonal frequency division multiplexing; power amplifier; power efficiency optimization; Bit error rate; Computational modeling; Energy consumption; Nonlinear distortion; OFDM; Personal digital assistants; Portable computers; Power amplifiers; Power engineering and energy; Power system modeling;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.284871
