Special Issue "Visible Light Communication (VLC)"

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Communication and Network".

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editor

Dr. Chen Chen
E-Mail
Guest Editor
School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China
Interests: visible light communication; LiFi; Internet of Things; digital signal processing
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

This special issue focuses on visible light communications (VLC) and spans both MDPI Sensors and Photonics. Visible light communication has gained enormous popularity across numerous domains, including short- and long-range communications and positioning and intelligent transport systems, amongst others. In general, it has been positioned as an emerging access network technology that has become an ever-increasing topic of interest over the last two decades.

Several key research challenges have emerged within the VLC domain, including multitechnology network tenancy, high data rates, physical layer security, resource allocation, co-design of high-speed data rates and dimming capabilities, machine-to-machine, underwater links, system network topologies, front-end design, and novel material photoactive components. In terms of global development, standards have been developed that define the minimum operation of VLC networks (IEEE802.11bb, amongst others).

In comparison with conventional RF networks, VLC can offer several advantages, including significantly higher data rates exceeding 10 Gb/s, inherent security as light does not traverse walls and the LED beam can be dedicated to a highly defined area (attocells), license-free operation, and no interference with existing RF systems, which is valuable in airplane and hospital applications. Therefore, the field of VLC promises substantial opportunities for basic and applied research and development. The proposed Special Issue will provide an opportunity for a thorough assessment of the current state of VLC across numerous applications, helping to develop the state-of-the-art.

We welcome submissions on any topic in VLC, with particular interest in the following, nonexclusive, list of principal topics:

  • Multitechnology VLC/x integration and transceiver design;
  • High data rate links, channel modelling, and digital signal processing;
  • Conventional and non-orthogonal modulation, coding, and multiple access;
  • Optical camera communication;
  • Underwater VLC;
  • Intelligent transport systems;
  • Mobility and integration of VLC into wider heterogeneous networks;
  • Applications of neural networks and new architectures;
  • VLC in healthcare sensing applications;
  • Co-illumination/dimming and communication system design;
  • Software-defined VLC, resource allocation, and multiuser system design.

Dr. Chen Chen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

Article
Deep Learning-Assisted Index Estimator for Generalized LED Index Modulation OFDM in Visible Light Communication
Photonics 2021, 8(5), 168; https://doi.org/10.3390/photonics8050168 - 19 May 2021
Viewed by 363
Abstract
In this letter, we present the first attempt of active light-emitting diode (LED) indexes estimating for the generalized LED index modulation optical orthogonal frequency-division multiplexing (GLIM-OFDM) in visible light communication (VLC) system by using deep learning (DL). Instead of directly estimating the transmitted [...] Read more.
In this letter, we present the first attempt of active light-emitting diode (LED) indexes estimating for the generalized LED index modulation optical orthogonal frequency-division multiplexing (GLIM-OFDM) in visible light communication (VLC) system by using deep learning (DL). Instead of directly estimating the transmitted binary bit sequence with DL, the active LEDs at the transmitter are estimated to maintain acceptable complexity and improve the performance gain compared with those of previously proposed receivers. Particularly, a novel DL-based estimator termed index estimator-based deep neural network (IE-DNN) is proposed, which can employ three different DNN structures with fully connected layers (FCL) or convolution layers (CL) to recover the indexes of active LEDs in a GLIM-OFDM system. By using the received signal dataset generated in simulations, the IE-DNN is first trained offline to minimize the index error rate (IER); subsequently, the trained model is deployed for the active LED index estimation and signal demodulation of the GLIM-OFDM system. The simulation results show that the IE-DNN significantly improves the IER and bit error rate (BER) compared with those of conventional detectors with acceptable run time. Full article
(This article belongs to the Special Issue Visible Light Communication (VLC))
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Article
Constant Transmission Efficiency Dimming Control Scheme for VLC Systems
Photonics 2021, 8(1), 7; https://doi.org/10.3390/photonics8010007 - 31 Dec 2020
Cited by 1 | Viewed by 528
Abstract
As a novel mode of indoor wireless communication, visible light communication (VLC) should consider the illumination functions besides the primary communication function. Dimming control is one of the most crucial illumination functions for VLC systems. However, the transmission efficiency of most proposed dimming [...] Read more.
As a novel mode of indoor wireless communication, visible light communication (VLC) should consider the illumination functions besides the primary communication function. Dimming control is one of the most crucial illumination functions for VLC systems. However, the transmission efficiency of most proposed dimming control schemes changes as the dimming factor changes. A block coding-based dimming control scheme has been proposed for constant transmission efficiency VLC systems, but there is still room for improvement in dimming range and error performance. In this paper, we propose a dimming control scheme based on extensional constant weight codeword sets to achieve constant transmission efficiency. Meanwhile, we also provide a low implementation complexity decoding algorithm for the scheme. Finally, comparisons show that the proposed scheme can provide a wider dimming range and better error performance. Full article
(This article belongs to the Special Issue Visible Light Communication (VLC))
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