Results 71 to 80 of about 1,149,379 (214)

A Fast Blind Detection Algorithm for Outdoor Visible Light Communications

IEEE Photonics Journal, 2015
In this paper, we consider an outdoor visible light communication system, in which on-off keying (OOK) modulation is utilized through an atmospheric turbulence-induced slow-fading channel. A new fast blind detection algorithm is proposed by following the
Yi-Jun Zhu, Zheng-Guo Sun, Jian-Kang Zhang, Yan-Yu Zhang   +3 more
doaj   +1 more source

BER Performance of NRZ-OOK and Manchester Modulation in Indoor Wireless Infrared Links

International Journal of Wireless Information Networks, 1998
This paper describes a novel approach to theevaluation of the bit error rate (BER) performance ofoptical wireless links that takes into account shotnoise, fluorescent light interference, and intersymbol interference (ISI) from both multipathdispersion and high-pass filtering (HPF) at thereceiver. The calculation of the BER is achieved withthe use of an
Samaras, K, O'Brien, D, Street, A, Edwards, D   +3 more
openaire   +2 more sources

Slow-Slope Reset Scheme for Highly-Sensitive CMOS Integrate-and-Dump Receiver OEIC

IEEE Access
This paper presents a slow-slope reset scheme that reduces charge injection for highly-sensitive integrate-and-dump direct detection receivers. The monolithic receiver OEIC utilizes a source-follower front-end and low-capacitance PIN photodiode, to ...
Simon Michael Laube, Christoph Gasser, Kerstin Schneider-Hornstein, Horst Zimmermann   +3 more
doaj   +1 more source

Multi-pulse Fourier codes for bit transmission at the quantum limit

New Journal of Physics
Bit-transmission can be enhanced by the use of quantum detection techniques, realizing a joint-detection receiver (JDR) that is able to decode transmitted signals via a collective operation and achieve the Holevo channel capacity.
Matteo Rosati
doaj   +1 more source

Analysis of Binary Encoded Signals for Underwater Acoustic Communication Under Varying Conditions

Acoustics
Underwater communication is essential for marine research, yet saline environments pose significant challenges as electromagnetic waves suffer from severe attenuation and optical systems face scattering.
Divaashan Pillay, Johan Venter, Daniel van Niekerk   +2 more
doaj   +1 more source

Performance analysis of a multi-user outdoor visible light communication system using wavelength division multiplexing (WDM) with RZ-OOK and NRZ-OOK modulations for V2X communications

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Vehicle-to-Everything (V2X) communication represents a revolution in traffic management and road safety, with innovation at the heart of this evolution.
Anass Kharbouche, Hamza Ouamna, Zhour Madini, Younes Zouine   +3 more
doaj   +1 more source

Performance Evaluation of Optical Transmission Based on Link Estimation by Using Deep Learning Techniques

IEEE Access
In optical communication systems, the Q-factor is an important performance metric to evaluate the performance of an optical link. In this paper, a deep learning-based eye diagram analyzer is proposed to estimate the Q-factor.
Ahmad Sami Al-Shamayleh, Aadil Raza, Zulfiqar Ali, Saad Malik, Saeed Iqbal, Basit Raza, Muhammad Iqbal, Ahmad Atieh   +7 more
doaj   +1 more source

Design of a Demodulation Algorithm for UWOC based on Improved Manchester Coding

Guangtongxin yanjiu
【Objective】To meet the requirements of the engineering of high-speed Underwater Wireless Optical Communication (UWOC) technology, and to address the issue of high Bit Error Rate (BER) in underwater channels when using modulation methods such as On/Off ...
ZHANG You, HU Fangren, ZHAO Xiaoyan, ZHOU Jun, WANG Qilong   +4 more
doaj  

FSO channel estimation for OOK modulation with APD receiver over atmospheric turbulence and pointing errors

, 2017
M. Dabiri, S. Sadough, M. Khalighi
semanticscholar   +1 more source

Free-space optical communications at 4 Gbit/s data rate with a terahertz laser. [PDF]

Commun Phys
Elumalai J, Salih M, Fice M, Brown A, Li L, Linfield EH, Valavanis A, Seeds AJ, Davies AG, Freeman JR.   +9 more
europepmc   +1 more source