Space-Time Block Coded Spatial Modulation for Indoor Visible Light Communications

Naser, Shimaa; Bariah, Lina; Muhaidat, Sami; Al‐Qutayri, Mahmoud; Uysal, Murat; Sofotasios, Paschalis C.

doi:10.1109/jphot.2021.3126873

Cited by 14 publications

(9 citation statements)

References 56 publications

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“…In this section, we first compare the simulation SER and theoretical SER of the SVD-GMD-OT scheme in this paper to verify the effectiveness of the proposed scheme. Then we compare the SER of the SVD-GMD-OT scheme in this paper with two benchmark schemes that are SM [10], [12], [19] scheme and OT based on double SVD (SVD-OT) [19] scheme in atmosphere, underwater and air-water interface channels to verify that the proposed scheme in this paper can effectively improve the reliability of the MU-MIMO-VLC system. In addition, SER of air-water interface, underwater channel and atmospheric channel under different wind speed, water quality and propagation distance were simulated to demonstrate the influence of the three factors on the reliability of the scheme proposed in this paper.…”

Section: Simulationmentioning

confidence: 99%

“…And researchers also develop many technologies that can be applied on the basis of this technology, such as diversity coding, precoding [10] etc. In recent years, MIMO precoding technologies have been widely studied, such as Singular Value Decomposition (SVD), Geometric Mean Decomposition (GMD), Unified Channel Decomposition (UCD) and Space-Time Block Code (STBC) [11], [12].…”

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confidence: 99%

“…Nowadays, LED lighting is mostly composed of a large number of single LED lamps, which can compose massive MIMO [18] system to provide transmission services for multiple users in Visible Light Communication (VLC) system. In order to further improve the reliability of Multi-User MIMO Visible Light Communication (MU-MIMO-VLC) system, the optimal coding technologies are presented, such as Spatial Modulation (SM) [10], [12], [19] scheme, Spatial MultiPlexing (SMP) [1], [19], [20] scheme, and Orthogonal Transformation (OT) [19] scheme.…”

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confidence: 99%

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A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

2022

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In this paper, in order to improve the reliability of Multi-User Multiple-Input Multiple-Output Visible Light Communication (MU-MIMO-VLC) system, we propose a precoding scheme that based on Singular Value Decomposition (SVD) and Geometric Mean Decomposition (GMD) assisted Orthogonal Transformation (OT). In this design, we use SVD to conduct the decomposition of the user's complementary channel matrix. Then, the equivalent channel matrix is obtained by multiplying the user's channel matrix and the decomposed component. After that, the GMD is carried out to decompose the equivalent channel matrix. Finally, the precoding matrix of the proposed scheme is obtained. We then derive the theoretical Symbol Error Rate (SER) of the proposed scheme. The simulation results are provided to validate the effectiveness of the proposed scheme, and to demonstrate that the reliability of the proposed design is superior to benchmark schemes.

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Section: Simulationmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

2022

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“…Particularly, optical spatial modulation (OSM) has been attracting tremendous interest, due to its high power efficiency, negligible inter-channel interference and low implementation complexity [5], [6]. In order to improve the reliability of the overall OWC system, OSM has also been integrated with space time block codes (STBCs) [7]. However, it is challenging for OSM systems to achieve a high spectral efficiency, since only a single LED transmitter is activated for signal transmission at each time slot [8].…”

Section: Introductionmentioning

confidence: 99%

2D Generalized Optical Spatial Modulation for MIMO-OWC Systems

et al. 2022

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In this paper, a novel two-dimensional (2D) generalized optical spatial modulation (GOSM) scheme is proposed for multiple-input multiple-output optical wireless communication (MIMO-OWC) systems. By grouping multiple successive time slots as one time block, 2D GOSM mapping can be performed not only in the space domain but also in the time domain. Specifically, two types of 2D GOSM mapping schemes are designed, including 2D-1 and 2D-2 GOSM mappings. Moreover, to address the high complexity issue of optimal joint maximum-likelihood (ML) detection and the noise amplification and error propagation issues of zero-forcing-based ML (ZF-ML) detection, a deep neural network (DNN)-aided detection scheme is further designed for 2D GOSM systems. Simulation results demonstrate the superiority of the proposed 2D GOSM scheme with deep learningaided detection for high-speed and low-complexity MIMO-OWC systems. More specifically, a remarkable 3.4-dB signal-to-noise ratio (SNR) gain can be achieved by 2D GOSM in comparison to the conventional one-dimensional (1D) GOSM, when applying the DNN-aided detection.

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“…It is recalled that the performance of multiple access schemes has been also considered in VLC systems [12]- [18] and the references therein. To this effect, the investigation of orthogonal frequency division multiple-access (OFDMA) based on DC-biased optical (DCO)-OFDM in multi-cell VLC networks was considered in [19].…”

Section: Introductionmentioning

confidence: 99%

Coordinated Beamforming Design for Multi-User Multi-Cell MIMO VLC Networks

et al. 2022

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Inter-cell interference (ICI) and inter-user interference (IUI) constitute a major issue towards achieving the optimum spectral efficiency (SE) and energy efficiency (EE) performance in multi-cell visible light communication (VLC) networks. Hence, advanced multiple access techniques need to be leveraged in order to improve the provided service to the users of such interfering networks. To this end, the present contribution proposes the integration of coordinated beamforming (CB) with rate-splitting multiple access (RSMA) in multi-cell VLC systems. Specifically, we consider the design of beamformers for the common and private streams in a coordinated manner between different attocells, which is shown to provide efficient mitigation of the incurred interference. Additionally, the formulated optimization problem aims to minimize the sum of the mean squared error across all attocells in order to jointly determine the optimum receive filters and coordinated transmit beamformers for RSMA streams. In this context, we illustrate through extensive computer simulations, which are carried out in a realistic setup that assumes noisy channel state information acquisition, the distinct flexibility and robustness of CB-based RSMA in mitigating the incurred interference. Finally, the offered results demonstrate the superiority of CB-based RSMA in terms of achievable SE and EE performance in multi-cell VLC networks compared to the conventional CB-based space division multiple access counterpart.

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Space-Time Block Coded Spatial Modulation for Indoor Visible Light Communications

Cited by 14 publications

References 56 publications

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

A Reliable Singular Value Decomposition and Geometric Mean Decomposition Based Precoding Scheme for MU-MIMO-VLC System

2D Generalized Optical Spatial Modulation for MIMO-OWC Systems

Coordinated Beamforming Design for Multi-User Multi-Cell MIMO VLC Networks

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