Dynamic Spectrum Sharing in Heterogeneous Networks.
, 2013 The increasing demands for wireless spectrum and limited radio resources emphasise the need for more efficient spectrum sharing mechanisms. Dynamic spectrum sharing (DSS) has been cited as a promising mechanism for managing the radio spectrum. The objectives are to achieve flexible spectrum usage, improve spectrum efficiency, and combat spectrum ...
openaire +1 more source
Advanced Functional Materials, EarlyView.A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri +12 more
wiley +1 more source
DYNAMIC SPECTRUM SHARING IN WIRELESS COMMUNICATION
, 2014 Wireless technology is proliferating rapidly and the vision of pervasive wireless computing and Communications offers the promise of many societal and individual benefits. While consumer devices such as cell phones and laptops receive a lot of attention,
Vinay Jain +2 more
core
Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation
Advanced Functional Materials, EarlyView.Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi +5 more
wiley +1 more source
Magneto‐Ionic Devices With Polymer‐Based Electrolytes
Advanced Functional Materials, EarlyView.Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler +3 more
wiley +1 more source
Hybrid Robust Beamforming Optimization for LEO Satellite Communications Under DOA Estimation Errors in Spectrum Sharing Scenarios. [PDF]
Sensors (Basel)Wang Y, Xie X, Jia J.
europepmc +1 more source
The Effect of Hydrophilic Headgroup Chemistry on Peptoid‐Directed Mineralization of CaCO3
Advanced Functional Materials, EarlyView.Amphiphilic peptoids alter the pathway and outcome of calcium carbonate crystallization, which progresses through amorphous calcium carbonate (ACC) to vaterite to calcite rhombs in the absence of peptoids. In contrast, amine‐terminated peptoids produce vaterite disks and carboxyl‐terminated peptoids produce calcite mesocrystals.
Biao Jin +5 more
wiley +1 more source
Distance-based Device-To-Device outage reduction for 5G wireless systems. [PDF]
PLoS OneAl-Quhali AH +3 more
europepmc +1 more source
GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching
Advanced Functional Materials, EarlyView.The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich +13 more
wiley +1 more source
Safe causal-graph primal-dual multi-agent scheduling for energy- and latency-constrained edge-assisted cognitive radio networks. [PDF]
Sci RepKannan T +3 more
europepmc +1 more source