Results 151 to 160 of about 8,545 (175)

A programmable VLC core architecture for video compression DSP

1997 IEEE Workshop on Signal Processing Systems. SiPS 97 Design and Implementation formerly VLSI Signal Processing, 2002
A programmable Variable-Length Coder/decoder, "VLC core", is developed for various video compression algorithms and standards. This paper describes the programmable architecture that allows the coding and the decoding process to be performed by the same logical units on a small chip.
Y. Fukuzawa, K. Hasegawa, H. Hanaki, E. Iwata, T. Yamazaki   +4 more
openaire   +1 more source

Designing high-throughput VLC decoder. I. Concurrent VLSI architectures

IEEE Transactions on Circuits and Systems for Video Technology, 1992
Two classes of architectures-the tree-based and the PLA-based architectures-have been discussed in the literature for the variable length code (VLC) decoder. Pipelined or parallel architectures in these two classes are proposed for high-speed implementation.
S.-F. Chang, D.G. Messerschmitt
openaire   +1 more source

Applying VLC in 5G Networks: Architectures and Key Technologies

IEEE Network, 2016
Visible light communication has gained tremendous attention recently and has become a favorable complementary technology to millimeter- wave communication in short-range communication scenarios for future 5G networks. VLC possesses a number of prominent features to address the highly demanding 5G system requirements for high capacity, high data rate ...
Lifang Feng, Rose Qingyang Hu, Jianping Wang, Peng Xu, Yi Qian   +4 more
openaire   +1 more source

Vertical Handover Network Selection Architecture for VLC Vehicular Platoon Driving Assistance

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020
Vehicle platooning systems improve road active safety while relying on connected vehicles and exchanging critical safety messages. This paper investigates the applicability of visible light communications (VLC) technology among platoon members. An exact mathematical modelling of a VLC platoon system, perturbed by neighbouring vehicles, is conducted to ...
Rami Khoder, Rola Naja, Nadia Mouawad, Samir Tojme   +3 more
openaire   +1 more source

Daylight integrated indoor VLC architecture: An energy‐efficient solution

Transactions on Emerging Telecommunications Technologies, 2019
AbstractIn an indoor space, visible light communication (VLC) can form a promising enhancement of future illumination infrastructures with communication functionalities. This illumination infrastructure consumes 20% of the total energy consumption in the world.
Sourish Chatterjee, Deblina Sabui
openaire   +1 more source

A practical approach of VLC architecture for smart city

2013 Loughborough Antennas & Propagation Conference (LAPC), 2013
The purpose of this paper is to introduce maturing visible light communication (VLC) technology as a candidate bearer technology for supporting seamless high speed broadband connectivity in smart city architecture. A smart city is one which uses its resources as smart and efficient as possible.
Ayub, Shahid, Honary, Mahsa, Kariyawasam Katukolihe Gamage, Sharadha, Honary, Bahram   +3 more
openaire   +1 more source

A memory-efficient VLC decoder architecture for MPEG-2 application

2000 IEEE Workshop on SiGNAL PROCESSING SYSTEMS. SiPS 2000. Design and Implementation (Cat. No.00TH8528), 2002
Video data compression is a major key technology in the field of multimedia applications. Variable-length coding is the most popular data compression technique which has been used in many data compression standards, such as JPEG, MPEG and image data compression standards, etc.
null Kyeong-Yuk Min, null Jong-Wha Chong
openaire   +1 more source

VLC/RF Channel Switching Process Adapting to User Mobility in Coexistence Architecture

2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
We propose a seamless channel switching process that considers user mobility in the WiSMA-based VLC/RF coexistence architecture. Experiments and theoretical evaluations confirm the feasibility of the proposal over an expected range of user velocities.
Ryota Shiina, Kazutaka Hara, Tomohiro Taniguchi, Toshiro Nakahira, Tomoki Murakami, Satoshi Ikeda   +5 more
openaire   +1 more source

From linear to geiger mode avalanche detectors for ADC-less VLC receiver architectures

2017 IEEE Photonics Conference (IPC), 2017
This paper reviews the hardware requirements of generalised single photon ADC-less receiver circuits for visible light communications. A receiver based on parallel banks of pulse combiners and pipelined adders is shown to provide over a magnitude of circuit area reduction over the generalised structure.
Oscar Almer, Salvatore Gnecchi, Robert Henderson   +2 more
openaire   +1 more source

On the Downlink Operation and Architecture Optimization of Multi-User VLC Systems

2021
The limited overcrowded radio frequency spectrum compelled researchers to ex plore higher frequency ranges for wireless transmission. In recent decades, visible light communications (VLC) have gained lots of research attention thanks to the abundant bandwidth and the existing lighting infrastructure they offer.
openaire   +2 more sources