Fractal functions and wavelet expansions based on several scaling functions
Journal of Approximation Theory
A high performance parallel Radon based OFDM transceiver design and simulation
Digital Signal Processing
The performance of multiwavelets based OFDM system under different channel conditions
Digital Signal Processing
A N-Radon Based OFDM Trasceivers Design and Performance Simulation Over Different Channel Models
Wireless Personal Communications: An International Journal
Wavelet packet modulation for orthogonally multiplexedcommunication
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
New image compression techniques using multiwavelets and multiwavelet packets
IEEE Transactions on Image Processing
The finite ridgelet transform for image representation
IEEE Transactions on Image Processing
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Finite Radon transform (FRAT) mapper has the ability to increase orthogonality of sub-carriers, it is non sensitive to channel parameters variations, and has a small constellation energy compared with conventional fast Fourier transform (FFT) based orthogonal frequency division multiplexing (OFDM). It is also able to work as a good interleaver which significantly reduces the bit error rate (BER). Due to its good orthogonality, discrete Multiwavelet transform (DMWT) is attractive for implementation in OFDM systems which reduces inter-symbol interference (ISI) and inter-carrier interference (ICI) and eliminates the need for cyclic prefix and increases the spectral efficiency of the design. In this paper both FRAT and DMWT are implemented in a new design for OFDM. The new structure was tested and compared with conventional FFT-based OFDM, Radon-based OFDM, and DMWT-based OFDM for additive white Gaussian noise channel, flat fading channel, and multi-path selective fading channel. Simulation tests were generated for different channels parameters values. The obtained results showed that proposed system has increased spectral efficiency, reduced ISI and ICI, and improved BER performance compared with other systems.