Robust MIMO-OFDM System for Frequency-Selective Mobile Wireless Channels

Al-Dweik, Arafat; Kalbat, Fatma; Muhaidat, Sami; Filio, Oscar; Ali, Shirook M.

doi:10.1109/tvt.2014.2340736

Cited by 17 publications

(9 citation statements)

References 27 publications

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“…The beamformer works by jointly minimizing these off-diagonal entries, and hence decoupling the MIMO channels. However, emerging wireless systems are designed to provide high data rates, which gives rise to intersymbol interference due to frequency-selective multipath fading [9], [10]. The GSVD beamformer would not be expected to combat multipath since it does not have the necessary degrees of freedom (DoFs) to realize the required temporal filters.…”

Section: Introductionmentioning

confidence: 99%

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Polynomial GSVD Beamforming for Two-User Frequency-Selective MIMO Channels

Hassan¹,

Redif

McWhirter

et al. 2021

IEEE Trans. Signal Process.

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In this paper, we propose a generalized singular value decomposition (GSVD) for polynomial matrices, or polynomial GSVD (PGSVD). We then consider PGSVD-based beamforming for two-user, frequency-selective, multiple-input multiple-output (MIMO) multicasting. The PGSVD can jointly factorize two frequency-selective MIMO channels, producing a set of virtual channels (VCs), split into: private channels (PCs) and common channels (CCs). An important advantage of the proposed PGSVD-based beamformer, over the application of GSVD independently to each frequency bin of the orthogonal frequency division multiplexing (OFDM) scheme, is that it can facilitate different modulation and/or access schemes to various users. Using computer simulations, we characterize the bit error rate performance of our two-user MIMO multicasting system for different PCs/CCs configurations. Here, we also propose an OFDM-GSVD benchmark system, and show that our PGSVDbased beamformer compares favorably to this benchmark under erroneous and uncertain MIMO channel conditions, in addition to its advantage of facilitating heterogeneous modulation and access for various users.

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Section: Introductionmentioning

confidence: 99%

“…One possible way forward in this regard is by way of a frequency-domain scheme based on orthogonal frequencydivision multiplexing (OFDM) [9], [11], [12]. Such an approach would utilize the discrete Fourier transform (DFT) over the entire data to convert the multipath-channel problem into a number of individual narrowband tones [13].…”

Section: Introductionmentioning

confidence: 99%

Polynomial GSVD Beamforming for Two-User Frequency-Selective MIMO Channels

Hassan¹,

Redif

McWhirter

et al. 2021

IEEE Trans. Signal Process.

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“…[1][2][3] A lot of work has been done on the performance analysis of SFBC-OFDM system over different fading channels. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] In the year 2002, Lu et al 2 proposed a low-density parity-check code-based space-time code OFDM system for correlated fading channels in which performance analysis was given in terms of outage probability and OFDM word error rate. The frame error rate and outage probability of binary phase-shift keying (BPSK) and quadrature phase-shift keying (QPSK) modulated space-time block code (STBC)-based and SFBC-based OFDM system was reported by El Gamal et al 3 The performance analysis of space-time coding was done in the work of Garg et al 4 with imperfect channel estimation in 2005.…”

Section: Introductionmentioning

confidence: 99%

“…In the work of Jacobs and Moeneclaey, the ABER analysis was given for spatially correlated Rayleigh fading MIMO channels. In the work of Al‐Dweik et al, a channel matrix shaping–based technique was used for SFBC‐OFDM in order to increase the robustness of SFBC‐OFDM systems. The proposed technique is claimed to have better BER performance along with low computational complexity.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of SFBC‐OFDM system with channel estimation error over generalized fading channels

Singh

Joshi

2018

Trans Emerging Tel Tech

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In this paper, the performance of space‐frequency block code orthogonal frequency‐division multiplexing (SFBC‐OFDM) system is analyzed over different fading channels using a generalized approach. General closed‐form expressions of average bit error rate (ABER) are derived for SFBC‐OFDM system. Both M‐ary phase‐shift keying and M‐ary quadrature amplitude modulation techniques have been considered in this analysis. The effect of imperfect channel estimation on ABER is included while deriving the ABER expression. The derived expressions are applicable under any given fading conditions provided that the moment‐generating function of fading channel is known. Simulation results are provided to verify the numerical results obtained from the derived expressions.

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“…Al-Dweik et al [109] A novel technique was proposed to enhance the robustness of conventional MIMO-OFDM systems. which is expressed in terms of the N c −point IDFT of the…”

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confidence: 99%

Unified MIMO-Multicarrier Designs: A Space–Time Shift Keying Approach

Kadir¹,

Sugiura

Chen

et al. 2015

IEEE Commun. Surv. Tutorials

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Abstract-A survey and tutorial is provided on the subject of multiple-input-multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying (STSK) concept. We commence with a brief review of the family of MIMO systems, which is followed by the design of STSK systems in the context of MC modulation-based transmissions over dispersive wireless channels. Specifically, the STSK scheme is amalgamated with orthogonal frequency-division multiplexing, MC code-division multiple access, orthogonal frequency-division multiple access (OFDMA), and single-carrier frequency-division multiple access. We also provide a rudimentary introduction to MC differential STSK employing both conventional differential detection and multiple-symbol differential sphere decoding for the sake of dispensing with channel estimation. We conclude with the design recipes of coherent versus noncoherent MC STSK schemes, complemented by a range of future research ideas.

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Robust MIMO-OFDM System for Frequency-Selective Mobile Wireless Channels

Cited by 17 publications

References 27 publications

Polynomial GSVD Beamforming for Two-User Frequency-Selective MIMO Channels

Polynomial GSVD Beamforming for Two-User Frequency-Selective MIMO Channels

Performance analysis of SFBC‐OFDM system with channel estimation error over generalized fading channels

Unified MIMO-Multicarrier Designs: A Space–Time Shift Keying Approach

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