Results 71 to 80 of about 145,584 (294)

Experimental demonstration of cap transmitter using very high speed IC hardware description language (VHDL) [PDF]

, 2015
Carrierless Amplitude Phase (CAP) Modulation is a multidimensional and multilevel of modulation scheme which it is strongly inspired by QAM modulation scheme. CAP does not depend on a carrier and it is much simpler.
Yusoff, Yusmahaida
core  

Maximum Euclidean distance network coded modulation for asymmetric decode-and-forward two-way relaying

, 2013
Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a ...
Cao, Zhigang, Chen, Wei, Hanzo, Lajos
core   +1 more source

Jitter Limitations on Multi-Carrier Modulation [PDF]

, 2005
A feasibility study is made of an OFDM system based on analog multipliers and integrate-and-dump blocks, targeted at Gb/s copper interconnects. The effective amplitude variation of the integrator output caused by jitter is explained in an intuitive way ...
Klumperink, E.A.M., Nauta, B., Schrader, J.H.R., Visschers, J.L.   +3 more
core   +2 more sources

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout, Mathieu Bertrand, Philipp Täschler, Barbara Schneider, Victor Turpaud, Stefano Calcaterra, Davide Impelluso, Marco Faverzani, David Bouville, Jean‐René Coudevylle, Samson Edmond, Etienne Herth, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella, Jérôme Faist, Delphine Marris‐Morini   +17 more
wiley   +1 more source

Resource allocation in MIMO systems specific to radio communication [PDF]

Archives of Electrical Engineering, 2019
The performance of the multi-input multi-output (MIMO) systems can be improved by spatial modulation. By using spatial modulation, the transmitter can select the best transmit antenna based on the channel variations using channel state information (CSI).
Bahar Ghaderi, Naser Parhizgar
doaj   +1 more source

Inhomogeneous phase-visibility modulating interferometry by space on-off non-quadrature amplitude modulation.

Optics Express, 2013
A new method in interferometry based on on-off non-quadrature amplitude modulation for object phase retrieval is presented. Although the technique introduces inhomogeneous visibility and phase variations in the interferogram, it is shown that the phase ...
U. Rivera-Ortega, C. Meneses-Fabian, G. Rodríguez-Zurita   +2 more
semanticscholar   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Comparative Analysis of the Efficiency of Detecting Some Amplitude-Phase Modulated Signals in Wireless Communication Systems [PDF]

International Journal of Electronics and Telecommunications, 2019
This article presents the results of the research of noiseimmunity of wireless communication systems using signals that are formed on the basis of eight-position quadrature-amplitude modulation (8-QAM) and eight-position amplitude modulation of many ...
Andriy P. Bondariev, Ivan V. Horbatyi, Ivan P. Maksymiv, Sergiy I. Altunin   +3 more
doaj   +1 more source

Experimental study on discretely modulated continuous-variable quantum key distribution

, 2010
We present a discretely modulated continuous-variable quantum key distribution system in free space by using strong coherent states. The amplitude noise in the laser source is suppressed to the shot-noise limit by using a mode cleaner combined with a ...
C. H. Bennett, F. Grosshans, Hongxin Zou, Jianmin Yuan, Liang Tian, Pingxing Chen, Yong Shen   +6 more
core   +1 more source

Experiment towards continuous-variable entanglement swapping: Highly correlated four-partite quantum state [PDF]

, 2003
We present a protocol for performing entanglement swapping with intense pulsed beams. In a first step, the generation of amplitude correlations between two systems that have never interacted directly is demonstrated.
A. Furusawa, C. Bennett, C. Silberhorn, Christine Silberhorn, Christoph Marquardt, D. Bouwmeester, G. Giedke, G. Leuchs, Gerd Leuchs, H.J. Briegel, I. Marcikic, J. Zhang, J. Zhang, J.W. Pan, Joel Heersink, L. Duan, M. Hillery, Michael Brownnutt, N. Korolkova, N. Korolkova, Natalia Korolkova, Oliver Glöckl, P. van Loock, P. van Loock, P. van Loock, P. van Loock, Peter van Loock, Qing Pan, R. Simon, S. Schmitt, S.L. Braunstein, Stefan Lorenz, T.C. Zhang, W.P. Bowen, X. Li, Y.H. Kim   +35 more
core   +2 more sources