Modulation and Demodulation Technique of Constant Envelope OFDM

Author

Zhao Zhongyi ; Tang Zhaosheng

Author_Institution

Liaoning Univ. of Technol., Jinzhou, China

fYear

2014

fDate

18-20 Sept. 2014

Firstpage

156

Lastpage

160

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IMCCC.2014.40

Filename

6995010