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On the Use of Discrete Cosine Transforms for Multicarrier Communications

Fernando Cruz-Roldan, María Elena Dominguez-Jimenez, Gabriela Sansigre Vidal, Pedro Amo-Lopez, Manuel Blanco-Velasco, Ángel Bravo-Santos
2012 IEEE Transactions on Signal Processing  
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

Kelvin O. O. Anoh, Trust T. Mapoka, Raed A. A. Abd-Alhameed, Ogechukuka Ochonogor, Steve M. R. Jones
2014 International Journal on Communications Antenna and Propagation  
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

Hani Attar, Ahmed Solyman
2017 Journal of Computer and Communications  
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

Hani Attar
2016 International Journal of Communications, Network and System Sciences  
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

Guangyu Wang, Weiwei Zhang, Kai Shao, Ling Zhuang
2013 Journal of Communications  
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

Elena Dominguez-Jimenez, David Luengo, Fernando Cruz-Roldan
2018 2018 IEEE Statistical Signal Processing Workshop (SSP)  
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

Ahmad Fadzil Ismail, Sofia Pinardi, Mohammad Kamrul Hassan, R.M.A Raj Mohamed, Wahidah Hashim
2017 International Journal of Hybrid Information Technology  
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

Navneet Kaur, Lavish Kansal
2013 International Journal of Wireless & Mobile Networks  
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

Osama A. Omer, Ahmed Abdel- Reheem
2013 International Journal of Future Computer and Communication  
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

T.K. Adhikary, V.U. Reddy
1998 Zenodo  
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]

B. Sarala, D.S. Venkateswarulu
2011 arXiv   pre-print
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

Imad Shaheen, Abdelhalim Zekry, Fatma Newagy, Reem Ibrahim
2017 International Journal of Engineering & Technology  
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

Shiwani Sandal, Lavish Kansal
2018 International Journal of Control and Automation  
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

B Sarala, Venkateswarulu
2011 International Journal of Distributed and Parallel systems  
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

Fernando Cruz-Roldán, Elena Domínguez-Jiménez, David Luengo, Gabriela Sansigre
2018 Zenodo  
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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