چکیده مقاله
Orthogonal Frequency Division Multiplexing OFDM is a form of multi carrier transmission with lots of applications in wireless systems In this modulation scheme, Fourier transform is used to provide orthogonality among subcarriers Wavelets have lots of advantages in time and frequency domains By using the transform, the spectral containment of Wavelet based OFDM is better than Fourier base on OFDM In this paper, a comparison has been made between performances of the Fourier transform and wavelets in OFDM based systems in order to improve in high frequency HF channel Simulation results show that wavelet transforms outperform the Fourier transform in terms of bit error rate BER and system efficiency in HF channel
کلیدواژهها
نویسندگان
Alireza Shirmarz
Computer Engineering and Information Technology, Amirkabir University of Technology
Mojtaba Hoseini
Department of Computer Engineering and Information Technology, Amirkabir University of Technology
Morteza Azimi
Department of Computer, Communication & Security Engineering, Malekashtar University of Tecnology
شیوه ارجاع
Shirmarz, Alireza and Hoseini, Mojtaba and Azimi, Morteza,1395,Performance Analysis of Wavelet and Fourier Transform in OFDM based system in Low Complexity Channel,2nd National Congress of Electrical and Computer Engineering of Iran,Ramsar
ارائهشده در
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