Results 41 to 50 of about 155,552 (273)

Bit-interleaved coded modulation in the wideband regime [PDF]

, 2007
The wideband regime of bit-interleaved coded modulation (BICM) in Gaussian channels is studied. The Taylor expansion of the coded modulation capacity for generic signal constellations at low signal-to-noise ratio (SNR) is derived and used to determine ...
,, ,, Caire, G, Guillén i Fàbregas, A, Martinez, A, Willems, F   +5 more
core   +1 more source

Computation Offloading Strategies for LEO Satellite Edge Computing Systems Based on Different Multiple Access Methods

IEEE Access
Mobile Edge Computing (MEC) is pivotal for supporting compute-intensive and latency-critical applications in forthcoming mobile networks. It plays an essential role in providing network services through Low Earth Orbit (LEO) satellites, especially in ...
Bo Wang, Jiecheng Xie, Dongyan Huang
doaj   +1 more source

Active Switching of Extremely High-Q Fano Resonances Using Vanadium Oxide-Implanted Terahertz Metamaterials

Applied Sciences, 2020
In this paper, we demonstrate an active switching of extremely high Q-factor Fano resonances using vanadium oxide (VO2)-implanted THz asymmetric double C-shaped metamaterial (MM) structures.
Jing Ma, Zhi-Hang Wang, Huan Liu, Ya-Xian Fan, Zhi-Yong Tao   +4 more
doaj   +1 more source

A Low-Cost Multibeam Switching Antenna Using Reconfigurable Hybrid Metasurface for Beamforming Applications

Micromachines, 2023
In this paper, we proposed a multibeam switching antenna based on a low-cost reconfigurable hybrid metasurface applied for beamforming systems. The antenna consists of two parts: a microstrip feed antenna and a transmission hybrid metasurface. The latter
Lili Sheng, Yumei Luo, Gangxin Ning, Liang Meng, Weiping Cao   +4 more
doaj   +1 more source

Multiband Spectrum Access: Great Promises for Future Cognitive Radio Networks [PDF]

, 2014
Cognitive radio has been widely considered as one of the prominent solutions to tackle the spectrum scarcity. While the majority of existing research has focused on single-band cognitive radio, multiband cognitive radio represents great promises towards ...
Ghaith Hattab, Mohammed Ibnkahla, Student Member   +2 more
core   +1 more source

Multi‐band joint local sparse tracking via wavelet transforms

IET Computer Vision, 2016
A novel multi‐band joint local sparse tracking algorithm via wavelet transforms is proposed in this study. The object image may contain rich information of different types; the authors use wavelet transforms to decompose the object image into some sub ...
Guang Han, Heng Luo, Jixin Liu, Ning Sun, Kun Du, Xiaofei Li   +5 more
doaj   +1 more source

Graphene-Based Magnetically Tunable Broadband Terahertz Absorber

IEEE Photonics Journal, 2022
This study proposes a broadband absorber based on graphene and one-dimensional photonic crystal (1DPC) to achieve magnetically tunable broadband absorption in the terahertz (THz) frequency range.
Zhenyan Wei, Yannan Jiang, Shitian Zhang, Xiuqin Zhu, Qingliang Li   +4 more
doaj   +1 more source

Reduced Muscular Carnosine in Proximal Myotonic Myopathy—A Pilot 1H‐MRS Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Myotonic dystrophy type 2 (proximal myotonic myopathy, PROMM) is a progressive multisystem disorder with muscular symptoms (proximal weakness, pain, myotonia) and systemic manifestations such as diabetes mellitus, cataracts, and cardiac arrhythmias.
Alexander Gussew, Maryam Kargaran, Maik Rothe, Andreas Deistung, Dietrich Stoevesandt, Walter A. Wohlgemuth, David Strube, Thomas Kendzierski, Anna Katharina Kölsch, Maurits Gerhard Abraham Heuschen, Markus Otto, Alexander Mensch   +11 more
wiley   +1 more source

EZR-MZR Resonators for Compact Low-Profile Omnidirectional Circular-Polarized Antenna Design

IEEE Photonics Journal, 2017
New zeroth-order resonator (ZOR): the curved EZR-MZR resonator [epsilon-zero resonance (EZR) and mu-zero resonance (MZR)] was proposed for circular-polarized (CP) antenna design with low-profile and omnidirectional characteristics.
Lin Peng, Kai Sun, Xing Jiang, Si-Min Li, Cheng-Li Ruan   +4 more
doaj   +1 more source

Cluster Content Caching: A Deep Reinforcement Learning Approach to Improve Energy Efficiency in Cell-Free Massive Multiple-Input Multiple-Output Networks

Sensors, 2023
With the explosive growth of micro-video applications, the transmission burden of fronthaul and backhaul links is increasing, and meanwhile, a lot of energy consumption is also generated.
Fangqing Tan, Yuan Peng, Qiang Liu
doaj   +1 more source