Results 51 to 60 of about 12,176 (262)

Optimal Transceiver Designs for Wireless-Powered Full-Duplex Two-Way Relay Networks With SWIPT

open access: yesIEEE Access, 2017
This paper studies simultaneous wireless information and power transfer in full-duplex (FD) two-way relay networks, where two energy-constrained sources are served by a FD multi-antenna powersupply relay.
Wei Wang   +4 more
doaj   +1 more source

Image compression and encryption based on wavelet transform and chaos [PDF]

open access: yesКомпьютерная оптика, 2019
With the rapid development of network technology, more and more digital images are transmitted on the network, and gradually become one important means for people to access the information.
Haibo Gao , Wenjuan Zeng
doaj   +1 more source

The Impact of CSI and Power Allocation on Relay Channel Capacity and Cooperation Strategies

open access: yes, 2007
Capacity gains from transmitter and receiver cooperation are compared in a relay network where the cooperating nodes are close together. Under quasi-static phase fading, when all nodes have equal average transmit power along with full channel state ...
Goldsmith, Andrea J., Ng, Chris T. K.
core   +2 more sources

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

On the Determination of Efficiency of a Gas Compressor

open access: yesEnergies
For a gas undergoing a compression process, it is more appropriate to think of either isentropic or polytropic efficiency as process-defining parameters indicating that a given end state of compression has been achieved, rather than a measure of ...
Dean L. Millar
doaj   +1 more source

Distributed Quantization for Partially Cooperating Sensors Using the Information Bottleneck Method

open access: yesEntropy, 2022
This paper addresses the optimization of distributed compression in a sensor network with partial cooperation among sensors. The widely known Chief Executive Officer (CEO) problem, where each sensor has to compress its measurements locally in order to ...
Steffen Steiner   +2 more
doaj   +1 more source

Capacity of a Class of Deterministic Relay Channels

open access: yes, 2006
The capacity of a class of deterministic relay channels with the transmitter input X, the receiver output Y, the relay output Y_1 = f(X, Y), and a separate communication link from the relay to the receiver with capacity R_0, is shown to be C(R_0 ...
Cover, Thomas M., Kim, Young-Han
core   +3 more sources

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Achievable Rates of Compress-and-Forward Cooperative Relaying on Gaussian Vector Channels [PDF]

open access: yes2007 IEEE International Conference on Communications, 2007
The compress-and-forward (C&F) cooperative relaying strategy is known to outperform decode-and-forward (D&F) when the relay is close to the destination. In this paper, we derive achievable rates on Gaussian vector channels with cooperative C&F relaying.
Simoens S., Munoz O., Vidal J.
openaire   +1 more source

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato   +9 more
wiley   +1 more source

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