Umudike Journal of Engineering and Technology

Michael Okpara University of Agriculture, Umudike


BIT ERROR RATE PERFORMANCE COMPARISON OF VARIOUS DIGITAL MODULATION SCHEMES USING MATLAB SIMULINK MODEL

Amadi, A. O.
Department of Computer Engineering Technology AkanuIbiam Federal Polytechnic

Oborkhale, L. I.
Department of Electrical/Electronic Engineering TechnologyMicheal Okpara University of Agriculture Umudike

Nwaogu, C. O.
Department of Electrical/Electronic Engineering Technology ,Abia State Polytechnic

Akwu, A. I.
Department of Electrical/Electronic Engineering Technology Federal Polytechnic Nekede, Owerri

Theodore, C. A.
Department of Electrical/Electronic Engineering Technology Federal Polytechnic Nekede, Owerri

Okeke, L. O.
Department of Computer Engineering Technology Federal Polytechnic Nekede, Owerri

Ihemereze, C. N.
Department of Computer Engineering Technology AkanuIbiam Federal Polytechnic Unwana

Bosode, O.
Department of Computer Engineering Technology Federal Polytechnic Nekede, Owerri

Imoh, O. U.
Department of Computer Engineering Technology Akwa Ibom State Polytechnic , Ikot Osurua

Effiong, D. S.

Etokakpan, U. G.
Department of Computer Engineering Technology Akwa Ibom State Polytechnic , Ikot Osurua



ABSTRACT

This work deployed relevant Toolboxes for developing Simulink model in the MATLAB
Software used for the simulation of the model. In this work, the basic types of digital modulation
techniques were analyzed. The work evaluated the bit error rate performance characteristics of a
digital modulation scheme using MATLAB Simulink model for frequency shift keying (FSK),
phase shift keying and Quadrature Amplitude Modulation (QAM) modulation techniques.
Among channels used in wireless communication, this work deployed Additive White Gaussian
Noise (AWGN) channel between sending end and receivers, but focused in the characterization
and the design of analog signal waveforms that carry digital information and compares their
performance on an AWGN channel. In comparing Figures 11, 13, 15 and 17 in M-ary
modulation, the work observed that if the value of M increases the performance of the system
will be collapsing, which shows that binary phase shift keying (BPSK) Modulation has better
performance than DBPSK, QPSK and 8-QAM, hence work deduce that the bit error rate of
binary phase shift keying (BPSK) is the most effective modulation scheme in a practical
communication system.


Keywords: AWGN channel; simulink model, modulation, shift keying and communication


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Conference Code
IECON2019

Conference Title
ENGINEERING FOR SUSTAINABLE ECONOMIC DIVERSIFICATION, FOOD AND NATIONAL SECURITY

ISBN
978-978-53175-8-9

Date Published
Friday, September 20, 2019

Conference Date
2nd - 4th September, 2019

The contents of the articles are the sole opinion of the author(s) and not of UJET.


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