A N-Radon Based OFDM Trasceivers Design and Performance Simulation Over Different Channel Models

Authors:
Abbas Hasan Kattoush;Waleed Ameen Al-Jawher;Sulaiman M. Abbas;Ali Tweij Shaheen
Affiliations:
EE Department, Tafila Technical University, Tafila, Jordan;Al-Isra University, Amman, Jordan;EE Department, Baghdad University-IRAQ, Baghdad, Iraq;EE Department, Baghdad University-IRAQ, Baghdad, Iraq
Venue:
Wireless Personal Communications: An International Journal
Year:
2011

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Abstract

In this paper a new method is proposed to perform the N-Radon orthogonal frequency division multiplexing (OFDM), which are equivalent to 4-quadrature amplitude modulation (QAM), 16-QAM, 64-QAM, 256-QAM, ... etc. in spectral efficiency. This non conventional method is proposed in order to reduce the constellation energy and increase spectral efficiency. The proposed method gives a significant improvement in Bit Error Rate performance, and keeps bandwidth efficiency and spectrum shape as good as conventional Fast Fourier Transform based OFDM. The new structure was tested and compared with conventional OFDM for Additive White Gaussian Noise, flat, and multi-path selective fading channels. Simulation tests were generated for different channels parameters values including multi-path gains vector, multi-path delay time vector, and maximum Doppler shift.