Results 161 to 170 of about 6,856 (205)

A review of visible light communication (VLC) technology

AIP Conference Proceedings, 2020
This study introduces the concepts and some of the problems facing VLC. The most important discoveries of our time is the technique of communicating with visible light using light that can be seen with the naked eye. This technique uses non-radio frequency, which is jealous and restricted from telecommunications licenses, the urgent need to overcome ...
Saif N. Ismail, Muataz H. Salih
openaire   +1 more source

Passive optical receiver for visible light communication (VLC)

TENCON 2015 - 2015 IEEE Region 10 Conference, 2015
We demonstrate using solar cell as optical receiver (Rx) for visible light communication (VLC). The solar cell is low cost and can convert the VLC optical signal into electrical signal without external power supply. As the response of the solar cell is very limited; we also propose and demonstrate using pre-distortion to significantly enhance the ...
Hung-Yu Chen, Kevin Liang, Chung-Yen Chen, Shih-Hao Chen, Chi-Wai Chow, Chien-Hung Yeh   +5 more
openaire   +1 more source

Hybrid visible light communications (VLC) and PLC system

2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC), 2017
VLC needs a ubiquitous network as its backbone to avoid becoming an information isolated island. In this paper we propose and experimentally demonstrate an indoor hybrid system that integrates VLC and PLC. OFDM modulation scheme is used to maximize the transmission rate. Experiments show the system works well with the goal of full link transmission.
Liwei Yang, Junwei Li, Junning Zhang
openaire   +1 more source

Visible Light Communications (VLC) for Ambient Assisted Living

Wireless Personal Communications, 2014
With the advent of high efficacy light emitting diode (LED) directional lamps as a key componentin focal lighting, new possibilities emerge for re-designing the smart home scenario. A smart homescenario is characterized by enabled intelligent interworking of various wireless and wiredtechnologies to provide inhabitants with ease of use of appliances ...
Kumar, Ambuj, Mihovska, Albena D., Kyriazakos, Sofoklis, Prasad, Ramjee   +3 more
openaire   +2 more sources

Implementation of visible light communication (VLC) for vehicles

2016 International Conference on Advanced Communication Control and Computing Technologies (ICACCCT), 2016
In this paper, a system is designed especially to communicate between vehicles at night time. This system providing a security for the driver by giving him the luxury of communicating with other vehicles without getting out of his vehicle and another important feature of this system is that for the communication purpose no service provider is needed ...
P Karthik, B Muthu Kumar, B. A. Ravikiran, K. Suresh, Glenson Toney   +4 more
openaire   +1 more source

Enhancing mobile device peripheral controls using Visible Light Communication (VLC)

2015 9th International Conference on Sensing Technology (ICST), 2015
Since its emergence, Optical communication systems have always been considered as a significantly attractive alternative to wired data transfer techniques, especially in environment where high data rate is essential in a multi-component system. Unfortunately, optical communication is still not as robust as traditional mechanisms and suffers from ...
Raisamo Roope, Farooq Ahmed, Evreinov Grigori   +2 more
openaire   +1 more source

Resource Allocation for Hybrid Visible Light Communications (VLC)-WiFi Networks

2021 9th International Conference on Communications and Broadband Networking, 2021
Resource allocation management is the key issue of the integrated network of VLC and WiFi. In this paper, we discussed the existing resource allocation algorithms, and proposed a novel resource allocation algorithm based on the proportional fairness (PF) algorithm, which improved the ability of users to obtain resources in different regions and ...
Liwei Yang, Lu Yang, Jianming Wang, Tiancheng Huang, Xin Tian, Langnima Suo, Qi Zhang   +6 more
openaire   +1 more source

High Efficiency Modulation Technique for Visible Light Communication (VLC)

2019 36th National Radio Science Conference (NRSC), 2019
In this paper, sparse activated subcarriers OFDM index modulation (SAS-OFDM-IM) and interpolated sparse activated subcarriers OFDM index modulation (ISAS-OFDM-IM) are proposed to improve the spectrum efficiency of OFDM modulation technique in visible light communication (VLC) systems.
Amgad F. Aziz, Omar A. M. Aly, Usama S. Mohammed   +2 more
openaire   +1 more source

Tuneable and portable lighting system for Visible Light Communications (TP-VLC)

2015 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2015
This work presents a low cost prototype implementing new IEEE 802.15.7 standard for Visible Light Communications. A commercial off-the-shelf development platform is used to implement the firmware controlling the system. The system is tested with different LED luminaires and distances achieving data rates of 100 kbit/s with Bit Error Rates between (10−7
J. Higuera, Blai Verge, M. Peralvarez, J. Carreras   +3 more
openaire   +1 more source

APPLICATION OF VISIBLE LIGHT COMMUNICATION (VLC) INVARIOUS AREAS: SURVEY

Suleyman Demirel University Bulletin Natural and Technical Sciences
Optical wireless communication allows communication of ultraviolet, infrared, or visible light to carry a signal. Visible light communication (VLC) is a member of optical wireless communication that operates in visible band from 390 nm to 750 nm range. VLC uses light emitting diodes (LED) that is pulsed at very high speed.
Zh. Mamatnabiyev, M. Galiyev
openaire   +1 more source