Results 71 to 80 of about 210,020 (266)

A Survey on Network Tomography with Network Coding

, 2014
The overhead of internal network monitoring motivates techniques of network tomography. Network coding (NC) presents a new opportunity for network tomography as NC introduces topology-dependent correlation that can be further exploited in topology ...
Dai, Bin, Huang, Benxiong, Qin, Peng, Wu, Kui, Xu, Guan   +4 more
core   +1 more source

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Threshold-Based Relaying in Coded Cooperative Networks

IEEE Transactions on Vehicular Technology, 2011
In cooperative communications, error propagation at the relay nodes degrades the diversity order of the system. To combat that effect, we present a novel technique to control error propagation at the relays, which is implemented in the context of a distributed turbo code.
Ghaleb Al-Habian, Ali Ghrayeb, Mazen O. Hasna, Adnan A. Abu-Dayya   +3 more
openaire   +3 more sources

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

UAV-Assisted Superposition Coded Cooperation: Hybrid Relaying and Nakagami- m Channel for UL/DL

IEEE Access
In future wireless communication systems reliability and throughput are the major concern for the users in an infrastructure less scenarios. These requirements are fulfill by the unmanned aerial vehicle (UAV)-assisted superposition coded cooperation (UA ...
Pankaj Kumar, Nikita Goel, Manoj Tolani, Santhosha Kamath   +3 more
doaj   +1 more source

Signal-Aligned Network Coding in K-User MIMO Interference Channels with Limited Receiver Cooperation

, 2018
In this paper, we propose a signal-aligned network coding (SNC) scheme for K-user time-varying multiple-input multiple-output (MIMO) interference channels with limited receiver cooperation.
Chan, Tse-Tin, Lok, Tat-Ming
core  

Superposition network coding for wireless cooperative communication

6th International Symposium on Telecommunications (IST), 2012
Spatial diversity can be exploited by the use of cooperative communication technology. However, most of the well known cooperative protocols have some practical challenges. In this paper we introduce two disadvantages of several important cooperative diversity protocols including low spectral efficiency and requirement for perfect time and frequency ...
Ali Fazeli, Mohammad Javad Omidi, Hamid Saeedi Sourck   +2 more
openaire   +2 more sources

Physicochemical Reinforcement Unlocks Sterilization‐Stable Anisotropic Hydrogels for Cell‐Compatible Mock Arteries

Advanced Healthcare Materials, EarlyView.
ABSTRACT In vitro arterial models offer ethical and robust alternatives for vascular research but require cytocompatible materials that replicate physiological mechanics. Poly(vinyl alcohol) (PVA) hydrogels produced by directional freezing and salting‐out (PVA DFSO) are anisotropic yet lack stability for cell culture. Herein, methacrylated PVA (PVA‐MA)
Javiera Sanhueza Ortega, Kirthen Shanmuganathan, Laura Poole‐Warren, Susann Beier, Ulises Aregueta Robles   +4 more
wiley   +1 more source

Beamforming-Based Physical Layer Network Coding for Non-Regenerative Multi-Way Relaying

EURASIP Journal on Wireless Communications and Networking, 2010
We propose non-regenerative multi-way relaying where a half-duplex multi-antenna relay station (RS) assists multiple single-antenna nodes to communicate with each other. The required number of communication phases is equal to the number of the nodes, N.
Klein Anja, Amah AdityaUmbuTana
doaj