Results 31 to 40 of about 46,931 (208)
Visible Light Communications towards 5G [PDF]
, 2015 5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area.
Chvojka, P. +3 more
core +2 more sources
Distributions of Upper PAPR and Lower PAPR of OFDM Signals in Visible Light Communications
, 2014 Orthogonal frequency-division multiplexing (OFDM) in visible light communications (VLC) inherits the disadvantage of high peak-to-average power ratio (PAPR) from OFDM in radio frequency (RF) communications.
Baxley, Robert J. +2 more
core +1 more source
Challenges in Physical Layer Security for Visible Light Communication Systems
Network, 2022 This article highlights challenges associated with securing visible light communication (VLC) systems by using physical layer security (PLS) techniques.
Sunghwan Cho +3 more
doaj +1 more source
Physical-Layer Network Coding Enhanced Visible Light Communications Using RGB LEDs
IEEE Photonics Journal, 2023 Visible light communications (VLC) is a good candidate technology for the 6th generation (6G) wireless communications. Red, green, and blue (RGB) light-emitting diodes (LEDs) based VLC has become an important research branch due to its low price and high
Jian Xiong +4 more
doaj +1 more source
Non-Orthogonal Multiple Access for Visible Light Communications
, 2015 The main limitation of visible light communication (VLC) is the narrow modulation bandwidth, which reduces the achievable data rates. In this paper, we apply the non-orthogonal multiple access (NOMA) scheme to enhance the achievable throughput in high ...
Kapinas, Vasileios M. +3 more
core +1 more source
An Analysis of Distance Extension Method in Visible Light Communication (VLC) Performance
Jurnal Elkomika, 2020 ABSTRAK A Visible Light Communication (VLC) adalah teknologi yang menawarkan konsep inovatif karena VLC menerapkan cahaya tampak untuk mentransmisikan informasi dari satu titik ke titik lain.
LISA KRISTIANA +4 more
doaj +1 more source
Iterative Detection of Three-Stage Concatenated FFH-MFSK
, 2008 Serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Fast Frequency Hopping (FFH) M-ary Frequency Shift Keying (MFSK) is considered.
Ahmed, S. +3 more
core +1 more source
Advanced Science, EarlyView.A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao +6 more
wiley +1 more source
Advances in Electrical and Electronic Engineering, 2019 Visible Light Communication (VLC) technology uses white Light Emitting Diodes (LED) for providing illumination and communication at the same time. White LEDs have excellent illumination properties but their communication properties need improvement. This
Jan Vitasek +6 more
doaj +1 more source
Effects of Optical Beams on MIMO Visible Light Communication Channel Characteristics
Sensors, 2021 Under 5G envision, for pushing visible light communication (VLC) channel model evolution to various non-Lambertian beams, this paper introduces the typical commercial non-Lambertian beams, such as Luxeon rebel and side emitter, into the conventional ...
Jupeng Ding +3 more
doaj +1 more source