Bit error performance of diffuse indoor optical wireless channel pulse position modulation system employing artificial neural networks for channel equalisation [PDF]
, 2009 The bit-error rate (BER) performance of a pulse position modulation (PPM) scheme for non-line-of-sight indoor optical links employing channel equalisation based on the artificial neural network (ANN) is reported.
Ghassemlooy, Zabih +2 more
core +1 more source
Introductory survey for wireless infrared communications
The Journal of Engineering, 2014 Wireless infrared communications can be defined as the propagation of light waves in free space using infrared radiation whose range is 400–700 nm.
Munsif Ali Jatoi, Nidal Kamel
doaj +1 more source
Multicore Fiber Scenarios Supporting Power Over Fiber in Radio Over Fiber Systems
IEEE Access, 2019 We propose the integration of power over fiber in the next generation 5G radio access network front-haul solutions based on spatial division multiplexing with multicore fibers. The different architectures in both shared- and dedicated- core scenarios for
Carmen Vazquez +6 more
doaj +1 more source
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
Flexible and directional fibre optic ultrasound transmitters using photostable dyes [PDF]
, 2021 All-optical ultrasound transducers are well-suited for use in imaging during minimally invasive surgical procedures. This requires highly miniaturised and flexible devices. Here we present optical ultrasound transmitters for imaging applications based on
Little, CD +3 more
core
Graphene-based PAM-4 modulator compatible with CMOS platform operating over DWDM C-Band
Results in Optics, 2021 The next generation of optical transport networks requires a small footprint, high channel capacity, low cost, and technology capabilities driven by CMOS technology.
M.M. de Carvalho +2 more
doaj +1 more source
Y00 quantum noise randomised cipher; theoretical and experimental background
IET Quantum Communication, 2023 As past works have shown, information‐theoretically secure implementations transmitters of Y00 quantum noise randomised cypher are possible. An advance to the provably secure Y00 protocol by bridging gaps between experimental results and theoretical ...
Talehisa Iwakoshi
doaj +1 more source
Modulator-free quadrature amplitude modulation signal synthesis [PDF]
, 2014 The ability to generate high-speed on-off-keyed telecommunication signals by directly modulating a semiconductor laser’s drive current was one of the most exciting prospective applications of the nascent field of laser technology throughout the 1960s ...
Kelly, Brian +6 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric supportive care clinical trials often involve multiple clinically important outcomes, complicating trial interpretation. Hierarchical composite endpoints (HCEs) provide a framework to integrate key outcomes according to clinical importance.
Willem H. Collier +11 more
wiley +1 more source
Generation and characterisation of 40 GHz picosecond optical pulses generated using an EAM [PDF]
, 2006 The authors describe the generation of short (< 4 ps) optical pulses at a repetition rate of 40 GHz using an InP electro-absorption modulator. The technique of frequency resolved optical gating (FROG) is subsequently used to accurately characterize the ...
P. M. An +7 more
core +1 more source