BER comparison of OFDM with M-QAM modulation scheme of AWGN and Rayleigh fading channels

Ali Farzamnia and Ngu War Hlaing and Muralindran Mariappan and Manas Kumar Haldar (2018) BER comparison of OFDM with M-QAM modulation scheme of AWGN and Rayleigh fading channels. In: 2018 9th IEEE Control and System Graduate Research Colloquium (ICSGRC 2018), Shah Alam, Malaysia, 3-4 August 2018.

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Official URL: https://ieeexplore.ieee.org/document/8657503

Abstract

The wireless channel environment is critical to develop wireless communication. In Quadrature Amplitude Modulation (QAM), the constellation points are in square grid with equal vertical and horizontal spacing. Because of higher order modulation formats, more bit per symbol can be transmitted. M-QAM is the efficient digital modulation method because of its higher constellation points. In this paper, the Bit Error Rate (BER) performance of Orthogonal Frequency Division Multiplexing (OFDM) systems and different arrays of QAM (4, 8, 16, and 64-QAM) modulation techniques has been compared under the Rayleigh fading and Additive White Gaussian Noise (AWGN) channels. All the simulations are carried out in MATLAB. The investigation results shows that the Quadrature Phase Shift Keying (QPSK) modulation scheme gives the best performance in term of BER in OFDM system compared to the M-QAM modulation scheme.

Item Type:	Conference or Workshop Item (Paper)
Keyword:	Rayleigh Fading Channel , AWGN , Orthogonal Frequency Division Multiplexing , MQAM , BER
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Department:	FACULTY > Faculty of Engineering
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	31 Jul 2021 16:29
Last Modified:	31 Jul 2021 16:29
URI:	https://eprints.ums.edu.my/id/eprint/28974

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