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On the Use of Discrete Cosine Transforms for Multicarrier Communications
2012
IEEE Transactions on Signal Processing
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Index Terms-Carrier-frequency offset (CFO), discrete cosine transform (DCT), discrete multitone modulation (DMT), multicarrier modulation (MCM), multicarrier transceiver, orthogonal frequency-division ...
In this correspondence, the conditions to use any kind of discrete cosine transform (DCT) for multicarrier data transmission are derived. ...
ACKNOWLEDGMENT The authors would like to thank the Associate Editor and the anonymous Reviewers for their insightful recommendations, which have significantly contributed to the improvement of this paper ...
doi:10.1109/tsp.2012.2210714
fatcat:h3d53e4twncmxlk4p3q2zfj5y4
On the Application of Raised-Cosine Wavelets for Multicarrier Systems Design
2014
International Journal on Communications Antenna and Propagation
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Then, the raised-cosine wavelet is compared with other well-known orthogonal wavelets that are used, also, to build multicarrier modulation systems. ...
It will be shown that the raised-cosine wavelet transform, as an orthogonal wavelet, does not support the design of multicarrier application well like the existing well-known orthogonal wavelets. I. ...
We also thank the reviewers whose comments helped to improve the quality of the paper. ...
doi:10.15866/irecap.v4i4.2455
fatcat:nn2sbzx4szggreghaypcb7b7xq
A Proposed Orthogonal Chirp Division Multiplexing (OCDM) Multicarrier Transceiver Based on the Discrete Fractional Cosine Transform
2017
Journal of Computer and Communications
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The proposed scenario is for an Orthogonal Chirp Division Multiplexing (OCDM) multicarrier system derived from Discrete Fractional Cosine Transform (DFrCT). ...
The proposed DFrCT-OCDM multicarrier system is proofed to be less signal processing complexity and easier to implement, compared to the traditional Fast Fourier Transform (FFT). ...
Acknowledgements Philadelphia university deserves my true acknowledgements for the good atmosphere they maintain for their researchers and for the financial support for this research. ...
doi:10.4236/jcc.2017.52005
fatcat:l24xljkb6bhtdopbhciwxgoaia
Peak-to-Average Power Ratio Performance Analysis for Orthogonal Chirp Division Multiplexing Multicarrier Systems Based on Discrete Fractional Cosine Transform
2016
International Journal of Communications, Network and System Sciences
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In this paper, an evaluation for the PAPR performance of a multicarrier system based on the fractional cosine transform (FrCT) is introduced and then compared with DFrFT and FFT. ...
Finally, BER performance comparison among OFDM, Discrete Cosine Transform MCM (DCT-MCM), Discrete Hartley Transform MCM (DHT-MCM), DFrFT-OCDM and DFrCT-OCDM MCM systems was done by means of simulation ...
Acknowledgements Philadelphia University deserves my true acknowledgements for the good atmosphere they maintain for their researchers and for the financial support for this research. ...
doi:10.4236/ijcns.2016.912043
fatcat:qe3sad6xmrbbvjao44ka5s66py
Optimization and Implementation for the Modified DFT Filter Bank Multicarrier Modulation System
2013
Journal of Communications
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To verify the designed system we have compared the MDFT multicarrier modulation system with the OFDM modulation system. ...
The modified Discrete Fourier Transform (MDFT) filter bank is a Nearly Perfect Reconstruction (NPR) system based on pseudo-QMF filter bank. ...
MDFT Filter Bank Multicarrier Modulation System Our earlier study shows that for the QPSK baseband modulation the MDFT filter bank multicarrier modulation system has the similar performance with the OFDM ...
doi:10.12720/jcm.8.10.651-657
fatcat:gwabva76anf4zp62yz2dq2d4ii
Channel Estimation Using Type-III Even Discrete Cosine Transform in Multicarrier Communications
2018
2018 IEEE Statistical Signal Processing Workshop (SSP)
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In this work, we address the problem of channel estimation in multicarrier communications by means of the Type-III even discrete cosine transform (DCT3e). ...
It suffices to use any symmetric training sequence at the transmitter with enough leading and tail zeros. ...
However, in the last years discrete cosine transforms (DCTs) have been considered as an alternative to the DFT for MCM systems, due to their improved robustness with respect to some of the main weaknesses ...
doi:10.1109/ssp.2018.8450688
dblp:conf/ssp/JimenezLC18
fatcat:r6bv5fao6nggdnc5soy4jnwhmu
OFDM Transmission Technique to Minimize PAPR
2017
International Journal of Hybrid Information Technology
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In the study, OFDM systems employing DFT, Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT) had been investigated by means of computer simulation. ...
Conventionally OFDM can be implemented using Discrete Fourier Transform (DFT) technique that usually adopts modulation either Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK) or Quadrature ...
Inverse cosine discrete transform (ICDT) is defined as: ( ) √ ( ) ∑ ( ) ( ) (2) Where, ( Where denote as well as modulation direction, Q(.) states the Q-function which is expressed in Eqn.3. ( ) √ ∫ (3 ...
doi:10.14257/ijhit.2017.10.3.02
fatcat:kelv5o7more3nhfqant7s364ya
Discrete Cosine Transform-II for Reduction in Peak to Average Power Ratio of OFDM Signals Through μ-Law Companding Technique
2013
International Journal of Wireless & Mobile Networks
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This paper put forward combination of two existing techniques namely -Law Companding Transform and Discrete Cosine Transform-II precoding technique. ...
The simulation results show that, the proposed combinedscheme gives better result for PAPR Reduction and results in no distortion. ...
DISCRETE COSINE TRANSFORM-II The discrete cosine transforms (DCT) is a Fourier-related transform similar to the discrete Fourier transform (DFT). ...
doi:10.5121/ijwmn.2013.5211
fatcat:fpyi54abj5de7bb7jit4gqs2ei
Adaptive Hybrid PAPR Reduction in OFDM System
2013
International Journal of Future Computer and Communication
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In the proposed scheme, instead of using only Discrete Fourier Transform (DFT) in OFDM system, we suggest to use Discrete Sine Transform (DST) and Discrete Cosine Transform (DCT) as well to get the lowest ...
The proposed scheme is an adaptive hybrid scheme, which is based on the SLM technique and multiple transformation techniques. ...
Recently, signal transformation has been combined with SLM [19] , where the discrete cosine transform is incorporated with the conventional SLM scheme. ...
doi:10.7763/ijfcc.2013.v2.149
fatcat:ncwd54mfhzdgxauygumhxfhoqu
Discrete Wavelet Packet Based Multitone Modulation For Transmitting Complex Symbols
1998
Zenodo
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Publication in the conference proceedings of EUSIPCO, Rhodes, Greece, 1998 ...
A Discrete Multicarrier System Consider the multicarrier system shown in Fig. 1 . ...
the carriers for multicarrier modulation. ...
doi:10.5281/zenodo.36717
fatcat:uqqr5u5rbbdavgk7dpj4bp2nxy
MC CDMA PAPR Reduction Techniques using Discrete Transforms and Companding
[article]
2011
arXiv
pre-print
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In this paper a new technique for reduction in PAPR of the Multicarrier Code Division Multiple Access (MC CDMA) signals based on combining the Discrete Transform either Discrete Cosine Transform (DCT) ...
High Peak to Average Power Ratio (PAPR) of the transmitted signal is a serious problem in multicarrier modulation systems. ...
ACKNOWLEDGEMENTS This work is carried out on the basis of the paper entitled "Combined DCT and Companding for PAPR Reduction in OFDM signals". ...
arXiv:1112.2109v1
fatcat:5tpkkm5tb5hnzpmbhjgsekcssy
PAPR reduction for FBMC/OQAM using hybrid scheme of different Precoding transform and mu-law companding
2017
International Journal of Engineering & Technology
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The discrete cosine transformed (DCT), the Discrete Sine Transform (DST), and the Walsh Hadamard transforms (WHT) which are applied separately with Mu Companding. ...
The filter banks multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is developing multicarrier modulation technique used in the next wireless communication system (5G). ...
Discrete cosine transforms (DCT) Mathematically, the unitary Discrete Cosine Transform (DCT) of an input sequence a m with length Nis given by the following formula N k k0 π(2n 1)k y T a cos k 1, 2, .. ...
doi:10.14419/ijet.v6i4.8326
fatcat:hwpoexk5tvehfbx7k4erxkcvk4
Analyzing the Impact of Diverse PAPR Reduction Techniques on BER Performance of OFDM System
2018
International Journal of Control and Automation
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With the progression in age and its developing requests, there has been fast development in the field of communications. ...
In this work, diverse transforms, clipping and some hybrid techniques are proposed to reduce the PAPR of the signal and enhance the BER performance. ...
We used different transform like DHT(discrete Hartley transform), DWT(discrete wavelet transform), DFT(discrete Fourier transform), DST(discrete sine transform), DCT(discrete cosine transform) and another ...
doi:10.14257/ijca.2018.11.5.08
fatcat:iqw6mxnyrzfczjo5a52p2hafsy
MC CDMA Papr Reduction Techniques Using Discrete Transforms And Companding
2011
International Journal of Distributed and Parallel systems
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In this paper a new technique for reduction in PAPR of the Multicarrier Code Division Multiple Access (MC CDMA) signals based on combining the Discrete Transform either Discrete Cosine Transform (DCT) ...
High Peak to Average Power Ratio (PAPR) of the transmitted signal is a serious problem in multicarrier modulation systems. ...
ACKNOWLEDGEMENTS This work is carried out on the basis of the paper entitled "Combined DCT and Companding for PAPR Reduction in OFDM signals". ...
doi:10.5121/ijdps.2011.2622
fatcat:livwpyf2gje2hfonbusjcphfeq
A Novel Channel Estimation Scheme For Multicarrier Communications With The Type-I Even Discrete Cosine Transform
2018
Zenodo
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Publication in the conference proceedings of EUSIPCO, Kos island, Greece, 2017 ...
Most of these systems are based on the Type-II discrete cosine transform (DCT2) or the Type-IV discrete cosine transform (DCT4), and require the estimation of the channel's impulse response, which is usually ...
In this work, we explore the use of the Type-I even Discrete Cosine Transform (DCT1e) to estimate the channel in MCM systems. ...
doi:10.5281/zenodo.1159822
fatcat:dvgbuj77l5dnfe2nyuxoagmfsu
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