Results 81 to 90 of about 2,608 (229)
Study on separated double pulse position modulation and its performance
Tongxin xuebao, 2009 Separated double pulse position modulation（SDPPM） in wireless ultraviolet communication was presented.The structure of the SDPPM was described in detail.Requirements of the power and the bandwidth for SDPPM were analyzed and the BER was derived.Then ...
XU Zhi-yong1 +3 more
doaj +2 more sources
Visual Cell OOK Modulation : A Case Study of MIMO CamCom
The Journal of Korean Institute of Communications and Information Sciences, 2013 Multiplexing information over parallel data channels based on RF MIMO concept is possible to achieve considerable data rates over large transmission ranges with just a single transmitting element. Visual multiplexing MIMO techniques will send independent streams of bits using the multiple elements of the light transmitter array and recording over a ...
Nam-Tuan Le, Yeong Min Jang
openaire +2 more sources
, 2010 This paper investigates the bit error rate (BER) performance of a radio-over-fibre system utilizing binary phase shift keying (BPSK) at radio frequency (RF) of 5 GHz. The RF signal is externally modulated using the Mach-Zehnder modulator (MZM).
Ghassemlooy, Zabih +5 more
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THz Wireless Transmission Systems Based on Photonic Generation of Highly Pure Beat-Notes
IEEE Photonics Journal, 2016 In this paper, a terahertz (THz) wireless communication system at 400 GHz with various modulation formats [on–off keying (OOK), quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (16-QAM), and 32-quadrature amplitude ...
Shi Jia +6 more
doaj +1 more source
Simultaneous RZ-OOK to NRZ-OOK and RZ-DPSK to NRZ-DPSK format conversion in a silicon microring resonator [PDF]
, 2012 Simultaneous RZ-OOK to NRZ-OOK and RZ-DPSK to NRZDPSK modulation format conversion in a single silicon microring resonator with free spectral range equal to twice the signal bit rate is experimentally demonstrated for the first time at 41.6 Gb/s.
Ou, Haiyan +7 more
core +1 more source
IEEE AccessThis paper presents a harmonic based on-off keying (OOK) rectifier-modulator (HRM) for energy efficient battery-less self-aligning wireless sensor nodes.
Geonwoo Lee, Namkyung Lee, Juntaek Oh
doaj +1 more source
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 +3 more
doaj +1 more source
, 2010 This paper experimentally investigates and compares the performance of the free space optics system employing three different modulation schemes, on-off keying (OOK) with nonreturn- to-zero (NRZ) and return-to-zero (RZ) and the binary phase shift keying (
Z. Ghassemlooy +12 more
core +1 more source
Compressing Turbulence Effect in FSO using New Modulation Technique
MATEC Web of Conferences, 2017 Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper.
Mohamed Nawawi Norizan +4 more
doaj +1 more source
All-optical OOK-to-DPSK modulation format conversion using XPM in HNLF
, 2011 We provide a comprehensive investigation of all-optical modulation format conversion from OOK-to-DPSK at 10 Gb/s using cross-phase modulation.
Wang, J, Chen, LR, ,
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