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Optical Adaptive Precoding for Visible Light Communications

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Optical Adaptive Precoding for Visible Light Communications. / Marshoud, Hanaa; Sofotasios, Paschalis C.; Muhaidat, Sami; Sharif, Bayan S.; Karagiannidis, George K.

In: IEEE Access, Vol. 6, 2018, p. 22121-22130.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Marshoud, H, Sofotasios, PC, Muhaidat, S, Sharif, BS & Karagiannidis, GK 2018, 'Optical Adaptive Precoding for Visible Light Communications', IEEE Access, vol. 6, pp. 22121-22130. https://doi.org/10.1109/ACCESS.2018.2805939

APA

Marshoud, H., Sofotasios, P. C., Muhaidat, S., Sharif, B. S., & Karagiannidis, G. K. (2018). Optical Adaptive Precoding for Visible Light Communications. IEEE Access, 6, 22121-22130. https://doi.org/10.1109/ACCESS.2018.2805939

Vancouver

Marshoud H, Sofotasios PC, Muhaidat S, Sharif BS, Karagiannidis GK. Optical Adaptive Precoding for Visible Light Communications. IEEE Access. 2018;6:22121-22130. https://doi.org/10.1109/ACCESS.2018.2805939

Author

Marshoud, Hanaa ; Sofotasios, Paschalis C. ; Muhaidat, Sami ; Sharif, Bayan S. ; Karagiannidis, George K. / Optical Adaptive Precoding for Visible Light Communications. In: IEEE Access. 2018 ; Vol. 6. pp. 22121-22130.

Bibtex - Download

@article{2c78c31cb73a49fbb96195e9edd5fe8d,
title = "Optical Adaptive Precoding for Visible Light Communications",
abstract = "Multiple-input multiple-output (MIMO) techniques have recently demonstrated significant potentials in visible light communications (VLC), as they can overcome the modulation bandwidth limitation and provide substantial improvement in terms of spectral efficiency and link reliability. However, MIMO systems typically suffer from inter-channel interference, which causes severe degradation to the system performance. In this context, we propose a novel optical adaptive precoding (OAP) scheme for the downlink of MIMO VLC systems, which exploits the knowledge of transmitted symbols to enhance the effective signal-to-interference-plus-noise ratio. Furthermore, we derive bit-error-rate expressions for the proposed OAP scheme under perfect and outdated channel state information (CSI). Our results demonstrate that the proposed scheme is more robust to both CSI error and channel correlation, compared to conventional channel inversion precoding. These results are expected to provide useful insights in the effective design and efficient operation of VLC networks.",
keywords = "Adaptive optics, constructive interference, CSI error, Interference, Light emitting diodes, MIMO, MIMO communication, Optical receivers, Optical transmitters, Precoding, precoding, Visible light communications",
author = "Hanaa Marshoud and Sofotasios, {Paschalis C.} and Sami Muhaidat and Sharif, {Bayan S.} and Karagiannidis, {George K.}",
year = "2018",
doi = "10.1109/ACCESS.2018.2805939",
language = "English",
volume = "6",
pages = "22121--22130",
journal = "IEEE Access",
issn = "2169-3536",
publisher = "Institute of Electrical and Electronics Engineers",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Optical Adaptive Precoding for Visible Light Communications

AU - Marshoud, Hanaa

AU - Sofotasios, Paschalis C.

AU - Muhaidat, Sami

AU - Sharif, Bayan S.

AU - Karagiannidis, George K.

PY - 2018

Y1 - 2018

N2 - Multiple-input multiple-output (MIMO) techniques have recently demonstrated significant potentials in visible light communications (VLC), as they can overcome the modulation bandwidth limitation and provide substantial improvement in terms of spectral efficiency and link reliability. However, MIMO systems typically suffer from inter-channel interference, which causes severe degradation to the system performance. In this context, we propose a novel optical adaptive precoding (OAP) scheme for the downlink of MIMO VLC systems, which exploits the knowledge of transmitted symbols to enhance the effective signal-to-interference-plus-noise ratio. Furthermore, we derive bit-error-rate expressions for the proposed OAP scheme under perfect and outdated channel state information (CSI). Our results demonstrate that the proposed scheme is more robust to both CSI error and channel correlation, compared to conventional channel inversion precoding. These results are expected to provide useful insights in the effective design and efficient operation of VLC networks.

AB - Multiple-input multiple-output (MIMO) techniques have recently demonstrated significant potentials in visible light communications (VLC), as they can overcome the modulation bandwidth limitation and provide substantial improvement in terms of spectral efficiency and link reliability. However, MIMO systems typically suffer from inter-channel interference, which causes severe degradation to the system performance. In this context, we propose a novel optical adaptive precoding (OAP) scheme for the downlink of MIMO VLC systems, which exploits the knowledge of transmitted symbols to enhance the effective signal-to-interference-plus-noise ratio. Furthermore, we derive bit-error-rate expressions for the proposed OAP scheme under perfect and outdated channel state information (CSI). Our results demonstrate that the proposed scheme is more robust to both CSI error and channel correlation, compared to conventional channel inversion precoding. These results are expected to provide useful insights in the effective design and efficient operation of VLC networks.

KW - Adaptive optics

KW - constructive interference

KW - CSI error

KW - Interference

KW - Light emitting diodes

KW - MIMO

KW - MIMO communication

KW - Optical receivers

KW - Optical transmitters

KW - Precoding

KW - precoding

KW - Visible light communications

U2 - 10.1109/ACCESS.2018.2805939

DO - 10.1109/ACCESS.2018.2805939

M3 - Article

VL - 6

SP - 22121

EP - 22130

JO - IEEE Access

JF - IEEE Access

SN - 2169-3536

ER -