@ARTICLE{R1, 
author={Weinstein, S. and Ebert, P.}, 
journal={Communication Technology, IEEE Transactions on}, 
title={Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform}, 
year={1971}, 
volume={19}, 
number={5}, 
pages={628-634}, 
keywords={Bandwidth;Communications technology;Data communication;Demodulation;Discrete Fourier transforms;Fast Fourier transforms;Fourier transforms;Frequency division multiplexing;Military computing;Oscillators}, 
doi={10.1109/TCOM.1971.1090705}, 
ISSN={0018-9332},}



@article{R2,
 author = {Baker,, Simon and Kanade,, Takeo},
 title = {Limits on Super-Resolution and How to Break Them},
 journal = {IEEE Trans. Pattern Anal. Mach. Intell.},
 volume = {24},
 number = {9},
 year = {2002},
 issn = {0162-8828},
 pages = {1167--1183},
 publisher = {IEEE Computer Society},
 address = {Washington, DC, USA}
 }

@ARTICLE{R3, 
author={Ahmed, M.S. and Boussakta, S. and Sharif, B.S. and Tsimenidis, C.C.}, 
journal={Signal Processing, IEEE Transactions on}, 
title={OFDM Based on Low Complexity Transform to Increase Multipath Resilience and Reduce PAPR}, 
year={2011}, 
volume={59}, 
number={12}, 
pages={5994-6007}, 
keywords={AWGN channels;Hadamard transforms;OFDM modulation;computational complexity;discrete Fourier transforms;diversity reception;equalisers;error statistics;fading channels;multipath channels;OFDM;PAPR reduction;T-OFDM;Walsh-Hadamard transform;additive white Gaussian noise;bit error rate;channel fading;discrete Fourier transform;fast orthonormal unitary transform;flat fading models;high frequency diversity gain;low computational complexity transform;minimum mean square error equalizer;multicarrier system;multipath resilience;orthogonal frequency division multiplexing;peak-to-average power ratio reduction;quasi-static frequency selective fading channel models;subcarrier power;subcarrier transmission;transmitted signal;uncoded T-OFDM performance;zero-forcing equalizer;Bit error rate;Equalizers;Fast Fourier transforms;OFDM;Peak to average power ratio; ${rm T}$-transform;${rm T}$-OFDM;Fast Fourier transform (FFT);Walsh-Hadamard transform (WHT);orthogonal frequency division multiplexing (OFDM);peak-to-average power ratio (PAPR)}, 
doi={10.1109/TSP.2011.2166551}, 
ISSN={1053-587X},}