Results 21 to 30 of about 57,612 (310)
A genetic algorithm method for optical wireless channel control [PDF]
, 2009 A genetic algorithm controlled multispot transmitter is proposed as an alternative approach to optimizing the power distribution for single element receivers in fully diffuse mobile indoor optical wireless communication systems. By specifically tailoring
Leeson, Mark S. +2 more
core +1 more source
Recent developments in indoor optical wireless systems [PDF]
, 2008 An overview of the developments in optical wireless systems viewed from the traditional communications viewpoint of transmitter, channel and receiver is presented.
Leeson, Mark S. +3 more
core +1 more source
Reduction of interchannel interference noise in a two-channel grating-based OCDMA system using a nonlinear optical loop mirror [PDF]
, 2001 We show that a nonlinear optical switch can be used to suppress the interchannel noise generated under multiuser operation within a coherent, direct-sequence optical code-division multiple-access (OCDMA) system.
Teh, P.C. +4 more
core +1 more source
Modeling and Analysis of BER Performance in a SPAD-Based Integrated Fiber Optical Receiver
IEEE Photonics Journal, 2018 An analytical approach to model and analysis of the bit-error ratio (BER) performance in multi-single photon avalanche diode (SPAD) optical receivers is presented.
Hiwa Mahmoudi +4 more
doaj +1 more source
IEEE Photonics Journal, 2021 Photomultiplier tube (PMT) receiver is a promising solution for long-distance underwater wireless optical communication (UWOC) due to its characteristics of high gain, low noise, and large receiver area.
Jie Ning +4 more
doaj +1 more source
Mathematical simulation of the phototransistors
Lietuvos Matematikos Rinkinys, 2023 There are presented the model of the phototransistors and evaluated their non-linearity‘s. For simulation non-linearity‘s influence in a signal distortion the functional Voltera series are developed.
Julija Anilionienė
doaj +3 more sources
Smart receiver for visible light communications: Design and Analysis [PDF]
, 2012 This paper presents the concept, design and analysis for a visible light communications receiver to guard against blocking and enhance mobility. Different geometrical shapes have been investigated, with two being chosen and analyzed in MATLAB for the ...
Haigh, P. A. +14 more
core +1 more source
Homodyne coherent detection of ASK and PSK signals performed by a subcarrier optical phase-locked loop [PDF]
, 2005 Optical transmission systems based on homodyne coherent detection of 2-ASK and pilot carrier 2-PSK signals have been implemented. ASK data has been transmitted at 2.5 Gbps, while 2.5 Gbps and 10 Gbps PSK systems have been tested.
S. Camatel +4 more
core +1 more source
Evaluation of FEC for the atmospheric optical IM/DD channel
, 2003 Channel measurements were performed by the German Aerospace Center in various near ground optical channels including a 1.5 km horizontal path as well as a 61km path.
Hennes Henniger +7 more
core +1 more source
Analysis and evaluation of optimum wavelengths for free-space optical transceivers [PDF]
, 2010 The objective of this paper is to analyse and present the latest results obtained for free-space optics (FSO) within the EU COST Action IC-0802 and within the European Space Agency (ESA) contract.
Z. Ghassemlooy +15 more
core +1 more source