Article

# BER Calculation using Matlab Simulation for OFDM Transmission

Lecture Notes in Engineering and Computer Science 01/2008;

Source: DOAJ

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**ABSTRACT:**In wireless communication Orthogonal Frequency Division Multiplexing is gaining its importance as it is suitable for high speed data rates. It is a multi carrier system, which is commonly implemented for transmission of signals nowadays. In this system, orthogonally placed sub — carriers are used to carry data from transmitter end to receiver end. In this paper, Bit Error Rate comparison of Discrete Fourier Transform-based Orthogonal Frequency Division Multiplexing is compared with Discrete Cosine Transform-based Orthogonal Frequency Division Multiplexing for different modulation techniques over Multipath Rayleigh Fading Channel. It is observed from results that, Bit Error Rate shift in case of Discrete Cosine Transform-based Orthogonal Frequency Division Multiplexing is less then compared to Bit Error Rate shift in case of Discrete Fourier Transform-based Orthogonal Frequency Division Multiplexing system and Quadrature Amplitude Modulation shows better performance as compared to Phase Shift Keying for higher constellation index.01/2012;

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