Asymptotic Security of Continuous-Variable Quantum Key Distribution with a Discrete Modulation
Physical Review X, 2019 We establish a lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with a discrete modulation of coherent states.
Shouvik Ghorai +3 more
doaj +2 more sources
On the rigorous justification of b-modulation method and inclusion of discrete eigenvalues [PDF]
, 2019 Addressing the optical communication systems employing the nonlinear Fourier transform (NFT) for the data modulation/demodulation, we provide the explicit proof for the properties of the signals emerging in the so-called b-modulation method, the ...
Vasylchenkova, Anastasiia +3 more
core +6 more sources
A study of discrete wavelet transform based denoising to reduce the effect of artificial light interferences for indoor optical wireless communication [PDF]
, 2010 The optical power penalty (OPP) due to the artificial light interferences (ALIs) can be significantly high in an indoor optical wireless communication (OWC) channel making such link practically infeasible.
Ghassemlooy, Zabih +5 more
core +1 more source
Analytical evaluation of adaptive-modulation-based opportunistic cognitive radio in Nakagami-m fading channels [PDF]
, 2012 The performance of adaptive modulation for cognitive radio with opportunistic access is analyzed by considering the effects of spectrum sensing, primary user (PU) traffic, and time delay for Nakagami- m fading channels.
Khan, Fahdahmed +4 more
core +1 more source
IEEE Photonics Journal, 2018 We propose and experimentally investigate a high-speed Kramers–Kronig (KK) scheme based continuous-variable quantum key distribution (CV-QKD) system over a free-space optical (FSO) channel.
Zhen Qu, Ivan B. Djordjevic
doaj +1 more source
Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibres [PDF]
, 2009 The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s.
Lee, S.C. Jeffrey; id_orcid +33 more
core +1 more source
Spectral characterisation of shortened pulse position modulation format [PDF]
, 2010 Shortened pulse position modulation (SPPM) is a new modulation format that has recently been proposed for underwater wireless optical communications. A full spectral characterisation of SPPM is considered and original expressions are presented, which ...
Cryan, R.A.
core +1 more source
On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD
IEEE Access, 2019 To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity
Ivan B. Djordjevic
doaj +1 more source
Spectral characterisation of nk pulse position modulation format [PDF]
, 2005 nk pulse position modulation (PPM) is a new modulation format that has recently been proposed for the optical wireless channel. This Letter considers, for the first time, a full spectral characterisation of -PPM and presents original expressions, which
Cryan, R.A., Menon, M.
core +1 more source
The performance of a dual header pulse position modulation in the presence of artificial light interferences in an indoor optical wireless communications channel with wavelet denoising [PDF]
, 2011 Problem statement - Similar to other baseband modulation schemes, the performance of the Dual Header Pulse Interval Modulation (DH-PIM) is adversely affected by Artificial Light Interferences (ALI) in an indoor Optical Wireless Communications (OWC ...
Ghassemlooy, Zabih +2 more
core +1 more source