International Journal of Mathematical, Engineering and Management Sciences

ISSN: 2455-7749

CE-OFDM-CDMA Phase Modulation for 5G System

CE-OFDM-CDMA Phase Modulation for 5G System

Jamal Mestoui
ISNT Team, IMAGE Laboratory, Moulay Ismail University of Meknes, Morocco.

Mohammed El Ghzaoui
Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fes, Morocco.

Serghini Elaage
ISNT Team, IMAGE Laboratory, Moulay Ismail University of Meknes, Morocco.

Abdelmounim Hmamou
TTI Team, ERTTI Laboratory, Moulay Ismail University of Meknes, Morocco.

Jaouad Foshi
TTI Team, ERTTI Laboratory, Moulay Ismail University of Meknes, Morocco.

DOI https://doi.org/10.33889/IJMEMS.2021.6.4.065

Received on February 10, 2021
Accepted on May 27, 2021


In the present work, we propose a novel modulation scheme for 5G wireless communication system. Our contribution is to combine PM-OFDM (Phase Modulation Orthogonal Frequency Division Multiplexing) and CDMA (Code Division Multiple Access) to exploit their distinctive advantages. On the one hand, PM-OFDM is an effective technique to combat multipath fading effects. On the other hand, CDMA can serve multiple users who are using the same resources of time/frequency. The aim is to make a combination of PM-OFDM and CDMA techniques. In this paper, the OFDM-CDMA scheme and its PAPR (Peak-to-Average Power Ratio) statistics are reviewed. In this paper, the proposed scheme PM-OFDM-CDMA is described and its performances in terms of PAPR, power spectral density, and BER (Bit Error Rate) are analyzed. Moreover, MMSE (Minimum Mean Square Error) equalizer is used to avoid multipath and noise effects simultaneously. The simulation through AWGN (Additive white Gaussian noise) and Rayleigh channels is performed using MATLAB. From the simulation results, we observed that PM-OFDM-CDMA is an efficient technique in terms of energy consumption (PAPR = 0dB). Besides, CE-OFDM-CDMA offers high spectral efficiency with low BER due to its low PAPR. In CE-OFDM-CDMA method, the shape of the spectrum varies according to the value of the modulation index h. The band occupied by the spectrum increases with the value of h. Therefore, CE-OFDM-CDMA could be considered as a suitable technique for 5G applications.

Keywords- PAPR, Energy efficiency, 5G, PM-OFDM-CDMA, BER.


Mestoui, J., Ghzaoui, M. E., Elaage, S., Hmamou, A., & Foshi, J. (2021). CE-OFDM-CDMA Phase Modulation for 5G System. International Journal of Mathematical, Engineering and Management Sciences, 6(4), 1100-1114. https://doi.org/10.33889/IJMEMS.2021.6.4.065.

Conflict of Interest

The authors approve that there is no conflict of interest to declare for this publication.


The authors sincerely thank the editor, the associate editor and anonymous reviewers for giving this opportunity for our work to be considered for publication.


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