Title :
Modulation and Demodulation Technique of Constant Envelope OFDM
Author :
Zhao Zhongyi ; Tang Zhaosheng
Author_Institution :
Liaoning Univ. of Technol., Jinzhou, China
Abstract :
The theory of constant envelope orthogonal frequency division multiplexing (CE-OFDM) is analyzed in this paper, along with the introduction of the implementation method of CE-OFDM technique. Besides, the modulation and demodulation process is simulated and analyzed. And the results indicate that CE-OFDM conducts phase modulation on the basis of OFDM modulation. Thus, FFT/IFFT is implemented in the transmitting and receiving terminals. Furthermore, the method of equalization applied in the demodulation process can optimize system performance. And also, CE-OFDM solves the problem of high peak-to-average power ratio (PAPR) in OFDM, reducing PAPR to 0Db.
Keywords :
OFDM modulation; demodulation; fast Fourier transforms; inverse transforms; phase modulation; CE-OFDM technique; IFFT; PAPR; constant envelope OFDM; demodulation technique; orthogonal frequency division multiplexing; peak-to-average power ratio; phase modulation; Demodulation; Finite impulse response filters; Frequency-domain analysis; Peak to average power ratio; Phase modulation; Constant Envelope; OFDM; Phase Modulation; Single Carrier Frequency-Domain Equalization;
Conference_Titel :
Instrumentation and Measurement, Computer, Communication and Control (IMCCC), 2014 Fourth International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-6574-8
DOI :
10.1109/IMCCC.2014.40
