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Tensor space-time-frequency coding With Semi-Blind Receivers for MIMO Wireless Communication Systems

IEEE TRANSACTIONS ON SIGNAL PROCESSING 2014年第22期62卷 5987-6002页

作者： Favier, Gerard de Almeida, Andre L. F. Univ Nice Sophia Antipolis UNS Lab I3S CNRS F-06903 Sophia Antipolis France Univ Fed Ceara Dept Teleinformat Engn Wireless Telecom Res Grp BR-60020181 Fortaleza Ceara Brazil

In this paper, we first introduce two new classes of constrained tensor models that we call generalized PARATUCK-(N-1, N) and Tucker-(N-1, N) models. A new tensor space-time-frequency (TSTF) coding structure is then proposed for MIMO OFDM-CDMA wireless communication systems. Two semi-blind receivers relying on the new generalized PARATUCK model are derived for solving the problem of joint channel and symbol estimation. One is iterative and based on a two-step alternating least squares (ALS) algorithm. The other one is a closed-form and low-complexity solution which consists of the Kronecker product least squares (KPLS) estimation of the symbol matrix and a matrix unfolding of the channel tensor. Uniqueness of the underlying tensor model is discussed and system design requirements are derived for applicability of the ALS and KPLS receivers. We also show that the so-called TSTF system can be viewed as an extension of three existing tensor-based ST/TST/STF coding systems that are described in a unified framework. Computer simulation results illustrate the good performance of the TSTF system which outperforms the considered existing tensor-based systems both in terms of symbol estimation quality and allocation flexibility.

关键词： Constrained tensor models MIMO communication systems PARATUCK models space-time-frequency coding Tucker models

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coding Advantage Optimization of space-time-frequency Block Codes

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JOURNAL OF COMMUNICATIONS AND NETWORKS 2020年第2期22卷 85-92页

作者： Kermani, Vahid Momenaei Kermani, Hossein Momenaee Morsali, Alireza Islamic Azad Univ Dept Math Kerman Branch Kerman Iran Shahid Bahonar Univ Kerman Fac Math & Comp Dept Pure Math Kerman Iran McGill Univ Dept Elect & Comp Engn Montreal PQ Canada

In this article, we study the coding advantage of spacetime-frequency block codes (STFBCs). Since in MIMO-OFDM coding there is the potential of exploiting space, time and frequency diversities and as the frequency tones of OFDM modulation are relatively substantial, the intricate structure of STFBCs makes it almost impossible to optimize the parameters of the code as the number of symbols increases in each block. Consequently, we investigate how to optimize the code parameters independently to reduce the computational complexity. Furthermore, code permutation is an important part of the STFBCs. However, due to elaborate structure of the STFBCs, it is very hard to calculate the optimum permutation. Therefore, we put forth a technique to decompose the coding advantage of the STFBCs. Using this technique, the permutation parameter can be easily introduced and optimized for STFBCs. We then design a novel STFBC based on any given STBC and apply the proposed scheme on the proposed STFBC to illustrate the application of this technique by designing the optimum permutation for the code. Simulation results confirm that the proposed STFBC outperforms the best existing STFBCs in the literature.

关键词： coding advantage digital wireless communications fading channel MIMO-OFDM space-time-frequency coding

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space-time-frequency coding over quasi-static frequency-selective channels with linear complexity for the ML receiver

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SCIENTIA IRANICA 2013年第3期20卷 738-745页

作者： Shahabinejad, M. Talebi, S. Shahabinejad, M. Shahid Bahonar Univ Kerman Dept Elect Engn Kerman Iran Sharif Univ Technol Adv Commun Res Inst Tehran Iran Behpardaz Jahan Co Tehran Iran

The achievement of our previously proposed space-time coding algorithm entitled full-rate linear-receiver space-time block code (FRLR STBC) has motivated us to propose, in this paper, a new class of high-rate space-time-frequency block codes (STFBCs) over frequency-selective Rayleigh fading channels. We have called these codes FRLR STFBCs with interleaving (FRLR STFBCs-I). FRLR STFBCs-I could achieve a full-diversity property over quasi-static channels. Simulation results also verify that the proposed schemes exhibit proper performances in comparison with the recently proposed STFBCs. The most outstanding characteristic of the newly introduced high-rate codes is the linear complexity of the maximum likelihood (ML) receiver which makes possible a fast and economical decoding process. (C) 2013 Sharif University of Technology. Production and hosting by Elsevier B.V. All rights reserved.

关键词： Wireless communication Multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) Quasi-static channels space-time-frequency coding Fading channels

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space-time-frequency Modulation Mechanisms of Monochromatic and Nonmonochromatic Electromagnetic Waves on a Digital Programmable Transmission Metasurface

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ADVANCED FUNCTIONAL MATERIALS 2022年第13期32卷

作者： Wan, Xiang Wang, Jia Wei Huang, Zi Ai Li, Bai Yang Xiao, Qiang Cui, Tie Jun Southeast Univ State Key Lab Millimeter Waves Nanjing 210096 Peoples R China

By dynamically configuring unit structures, a digital programmable metasurface (DPM) can perform space, time, and frequency modulations of electromagnetic (EM) waves directly on the aperture, and hence linking the metasurface physics to digital information worlds. However, the interactions between DPMs and EM waves have not yet been systematically and efficiently depicted. Based on the Huygens-Fresnel principle and Fourier analysis, here the authors demonstrate the foundations of space-time-frequency joint controls of monochromatic or nonmonochromatic EM waves by DPM. Due to linear superposition properties of Fourier transform in the analysis, the space- and time-frequency modulations are naturally decoupled, hence enabling simultaneous and independent space-time-frequency controls of the EM waves. A transmissive DPM is designed and fabricated to interpret the space-time-frequency joint modulations. This work will facilitate the researches on DPMs and promote the applications of DPMs in wireless communications, intelligent sensing, and radar systems.

关键词： digital programmable metasurfaces intelligent sensing space-time-frequency coding wireless communication

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Performance of two space-time-frequency the coding Schemes in frequency Selective Channel

Performance of two Space-Time-Frequency the Coding Schemes i...

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2nd International Conference on Applied Materials and Electronics Engineering (AMEE 2013)

作者： Shao Chao Zhang Cheng-Cheng Xu Cun-Yao Liu Yu-Ming Xian Univ Posts & Telecommun Xian Peoples R China

ISBN: (纸本)9783037856680

Discussion of two classic space-time-frequency coding (STFC) scheme in frequency selective channel transmission problems is given. One utilized the data order inversion and conjugation transform, which makes the quadrature data encoder can no longer be interpreted as orthogonality of channel parameter matrix. Another has data orthogonal pre-processing, which makes each symbol spreading stream uniformly to all sub-channels. The computer simulation results illustrate the theoretical analysis of the paper.

关键词： space-time-frequency coding Lindskog-Paulraj space-time- frequency coding Park-Kim-Baik space-time-frequency coding

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Full-Diversity space-time-frequency coding with Very Low Complexity for the ML Decoder

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IEEE COMMUNICATIONS LETTERS 2012年第5期16卷 658-661页

作者： Shahabinejad, Mostafa Talebi, Siamak Shahid Bahonar Univ Kerman Dept Elect Engn Kerman Iran Sharif Univ Technol Adv Commun Res Inst Tehran Iran

Recently proposed full-diversity space-time-frequency block codes (STFBCs) generally suffer from very high computational complexity at the receiver side. In this paper, we introduce a new class of full-diversity STFBCs for quasi-static (QS) channels which features a comparatively low complexity at the receiver. We also demonstrate that our proposed algorithms could offer maximum coding advantage if the transmitter knows partial channel side information. Simulation results also verify that our coding schemes outperform other recently published STFBCs that were considered.

关键词： Wireless communication MIMO-OFDM quasi-static channels space-time-frequency coding fading channels

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time-frequency Grassmannian Signalling for MIMO Multi-Channel-frequency-Flat Systems

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IEEE COMMUNICATIONS LETTERS 2015年第3期19卷 475-478页

作者： Fouad, Yaser M. M. Gohary, Ramy H. Cabrejas, Jorge Yanikomeroglu, Halim Calabuig, Daniel Roger, Sandra Monserrat, Jose F. Carleton Univ Dept Syst & Comp Engn Ottawa ON K1S 5B6 Canada Univ Politecn Valencia Inst Telecommun & Multimedia Applicat E-46022 Valencia Spain

In this paper, we consider the application of non-coherent Grassmannian signalling in practical multi-channel-frequency-flat multiple-input multiple-output (MIMO) wireless communication systems. In these systems, Grassmannian signalling, originally developed for single-channel block-fading systems, is not readily applicable. In particular, in such systems, the channel coefficients are constant across time and frequency, which implies that spectrally-efficient signalling ought to be jointly structured over these domains. To approach this goal, we develop a concatenation technique that yields a spectrally-efficient time-frequency Grassmannian signalling scheme, which enables the channel coherence bandwidth to be regarded as an additional coherence time. This scheme is shown to achieve the high signal-to-noise ratio non-coherent capacity of MIMO channels when the fading coefficients are constant over a time-frequency block. This scheme is also applicable in fast fading systems with coherence bandwidth exceeding that of one subchannel. The proposed scheme is independent of the symbol duration, i.e., the channel use duration, and is thus compatible with the transmit filter designs in current systems.

关键词： space-time-frequency coding non-coherent capacity multi-channel-frequency-flat beyond 4G systems

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On the Combined Beamforming with space-time-frequency Code in MIMO-OFDM Systems

On the Combined Beamforming with Space-Time-Frequency Code i...

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4th International Conference on Computing, Communications and Networking Technologies (ICCCNT)

作者： Shrivastava, Neeraj Trivedi, Aditya ABV Indian Inst Informat Technol & Management Gwalior Madhya Pradesh India

ISBN: (纸本)9781479939251

Multiple antennas are used in wireless systems to achieve good quality of service and high data rate communication. Multiple-input multiple-output (MIMO) communication systems have a great potential to play an important role in the design of the 4G broadband wireless communication systems. In this paper, performance analysis of combined beamforming with space-time-frequency (STF) coded MIMO-OFDM systems is carried out using computer simulation. The proposed framework incorporates the beamforming with STF coding at the transmitter while minimum mean squared error (MMSE) and maximum likelihood (ML) detection at the receiver are considered. Simulation results show that the proposed scheme achieve significant performance gain in terms of bit error rate (BER).

关键词： OFDM MIMO beamforming space-time-frequency coding broadband wireless communications

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Joint complex diversity coding and channel coding over space, time and frequency

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IET SIGNAL PROCESSING 2011年第7期5卷 643-651页

作者： Wu, J. Xiao, P. Sellathurai, M. Blostein, S. Ratnarajah, T. Queens Univ Dept Elect & Comp Engn Kingston ON K7L 3N6 Canada Alcatel Lucent Bell Labs Shanghai 201206 Peoples R China Univ Surrey Ctr Commun Syst Res Guildford GU2 7XH Surrey England Queens Univ Belfast Inst Elect Commun & Informat Technol Belfast BT3 9DT Antrim North Ireland

This study provides a general diversity analysis for joint complex diversity coding (CDC) and channel coding-based space-time-frequency codeing is provided. The mapping designs from channel coding to CDC are crucial for efficient exploitation of the diversity potential. This study provides and proves a sufficient condition of full diversity construction with joint three-dimensional CDC and channel coding, bit-interleaved coded complex diversity coding and symbol-interleaved coded complex diversity coding. Both non-iterative and iterative detections of joint channel code and CDC transmission are investigated. The proposed minimum mean-square error-based iterative soft decoding achieves the performance of the soft sphere decoding with reduced complexity.

关键词： channel coding interleaved codes joint complex diversity coding minimum mean-square error-based iterative soft decoding Interpolation and function approximation (numerical analysis) symbol-interleaved coded complex diversity coding iterative detections iterative decoding soft sphere decoding space-time-frequency coding bit-interleaved coded complex diversity coding least mean squares methods general diversity analysis space-time codes Codes

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Diversity analysis of space-time-frequency coded broadband MIMO-OFDM system with correlation across space time and frequency

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Frontiers of Electrical and Electronic Engineering in China 2008年第3期3卷 295-300页

作者： Qinghua MA Luxi YANG Zhenya HE School of Information Science and Engineering Southeast UniversityNanjing 210096China

For the frequency selective and time variant multiple-input multiple-output(MIMO)channel model taking into account transmitting and receiving antenna correlation,the diversity of space-time-frequency coded broadband orthogonal frequency division multiplexing(MIMO-OFDM)system is *** on the average pairwise error probability(PEP),the design criterion of space-time-frequency code(STFC)is *** a given STFC,it is found that the achievable diversity order is related to the transmitter and the receiver correlation matrix as well as the time correlation and frequency correlation *** maximum available diversity of STFC over the correlation channel is Lrank(P)rank(Q)rank(RT).The space-time code and space-frequency code are special cases in our *** results validate the findings.

关键词： diversity multiple-input multiple-output(MIMO) orthogonal frequency division multiplexing pairwise error probability space-time-frequency coding

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