Results 71 to 80 of about 1,971,704 (286)
Dynamic spectrum allocation based on one-band multi-winner auction
Tongxin xuebao, 2012 In order to improve the effectiveness of traditional auction in DSA (dynamic spectrum allocation) issue in cognitive radio networks,a new dynamic spectrum allocation algorithm based on one-band multi-winner auction was proposed.Compared with the original
Wen-zhu ZHANG, Ling-yun WANG
doaj +2 more sources
Distributed Spectrum Allocation With The Cournot Competition
, 2010 Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark ...
Marcin Parzy, Hanna Bogucka
openaire +3 more sources
Allocation of Orbit and Spectrum Resources for Regional Communications: What's at Stake? [PDF]
Contentious debate surrounds allocation of the geostationary orbit and electromagnetic spectrum, two resources used by communications satellites. An extensive economics literature alleges that the nonmarket administrative allocative procedures now in ...
Macauley, Molly
core
Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
wiley +1 more source
Spectrum Allocation in Latin America: An Economic Analysis
Information Economics and Policy, 2006 Like elsewhere in the developing world, wireless markets now play a crucial role in Latin American economic growth. Mobile telephone networks increasingly provide the communications infrastructure that has largely been lacking throughout the region. Yet, governments have generally made only modest allocations of bandwidth available to Latin American ...
Thomas W. Hazlett, Roberto E. Muñoz
openaire +4 more sources
Spectrum Allocation, Spectrum Commons and Public Goods: the Role of the Market [PDF]
The reallocation of radio spectrum to valuable new and emerging technologies and services is essential to achieving the next wave of productivity and consumer benefits driven by ICT.
Marks, Phillipa, Marks, Brian
core
Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon
Advanced Materials, EarlyView.We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra +17 more
wiley +1 more source
Sub‐nm2 Ferroelectric Domains via Charged 180° Walls in ZrO2
Advanced Materials, EarlyView.Ferroelectric ZrO2${\rm ZrO}_2$ thin films host closely spaced charged 180∘$^{\circ }$ domain walls that vertically compress polar domains beyond their lateral half‐unit‐cell limit. These head‐to‐head and tail‐to‐tail walls show distinct bulk‐like structures, natural oxygen‐mediated stabilization, and highly asymmetric mobility, highlighting new ...
Nashrah Afroze +33 more
wiley +1 more source
On Dynamic Spectrum Allocation in Geo-Location Spectrum Sharing Systems
IEEE Transactions on Mobile Computing, 2019 Spectrum sharing is a key technology to relieve the ever-increasing spectrum demand and realize the full potential of radio spectrum. In this paper, we study spectrum sharing between higher priority users and lower priority users under geo-location based spectrum sharing systems.
Chunsheng Xin +3 more
openaire +2 more sources
Advanced Materials, EarlyView.In situ PXRD data on solvothermal reactions accelerate materials discovery while simultaneously providing fundamental insights into complex crystal formation processes. Using PdxMy (M = Si, Ge, Sn, Pb) as an example, a general formation mechanism is identified, and specific synthesis strategies for ex situ preparation of SnPd2, Sn13Pd20, and SnPd ...
Anders Bæk Borup +1 more
wiley +1 more source