Results 51 to 60 of about 3,508 (187)

Performance Analysis of MIMO STBC System in Flat Fading and Frequency Selective Fading Channels

Journal of Electrical, Electronics and Informatics, 2019
Multiple Input Multiple Output (MIMO) technology is a technique that can be used to overcome multipath fading. The multipath fading is caused by signals coming from several paths that experience different attenuations, delays and phases.
Pebri Yeni Samosir, Nyoman Pramaita, I Gst A. Komang Diafari Djuni Hartawan, Ni Made Ary Esta Dewi Wirastuti   +3 more
doaj   +1 more source

Effective Throughput Analysis of α-η-κ-μ Fading Channels

IEEE Access, 2020
The α-η-κ-μ fading model is a very useful instrument to accurately describe various radio wave propagation scenarios. In this paper, we study the effective throughput performance of communication systems over the α ...
Yun Ai, Aashish Mathur, Long Kong, Michael Cheffena   +3 more
doaj   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

International Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 594-606, September/October 2026.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency ( > 500 ms) and inadequate coverage at high latitudes,
Raúl Parada, Victor Monzon Baeza, Carlos Horcajo Fernández de Gamboa, Rocío Serrano Camacho, Carlos Monzo   +4 more
wiley   +1 more source

Effective Capacity Analysis Over Generalized Composite Fading Channels

IEEE Access, 2020
A performance analysis of the effective capacity in two recently proposed generalized composite fading channels, namely $\kappa $ - $\mu $ /inverse gamma and $\eta $ - $\mu $ /inverse gamma composite fading channels, is conducted. To this end, accurate
Seong Ki Yoo, Simon L. Cotton, Paschalis C. Sofotasios, Sami Muhaidat, George K. Karagiannidis   +4 more
doaj   +1 more source

Harnessing Human Mobility Data for Applied Economic Research: Current Knowledge, Challenges, and Emerging Opportunities

Journal of Economic Surveys, Volume 40, Issue 4, Page 1763-1788, September 2026.
ABSTRACT This paper reviews how large‐scale mobility data can enhance economic analyses, highlighting its contributions to understanding travel behavior, labor markets, social interactions, and health outcomes. We discuss its advantages over traditional mobility data sources, which include real‐time location information and fine spatial resolution ...
Cristina Connolly, Sandro Steinbach, Mike Vo, Xibo Wan   +3 more
wiley   +1 more source

Differentiable architecture search-based automatic modulation recognition for multi-carrier signals

Tongxin xuebao
Considering the lack of a general multi-carrier signal dataset in urban multipath channels, and the challenge of recognizing the modulation types of distorted signals at low signal-to-noise ratio (SNR), a differentiable architecture search-based (DARTS ...
LI Jie, LI Jing, LYU Lu, GONG Fengkui
doaj   +2 more sources

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

MDSC: Unsupervised Multipath Decomposition and Synergistic Correction for Efficient Low‐Light Image Enhancement with Detail‐Aware Smoothing

Advanced Intelligent Systems, Volume 8, Issue 8, August 2026.
This work proposes MDSC, an unsupervised low‐light enhancement framework integrating three core innovations: detail‐aware smoothing, multipath decomposition, and synergistic correction. It suppresses noise, handles rapid illumination variations, and prevents reflectance‐contrast amplification inherent to Retinex separation.
Yong Cheng, De Yu, Yongqi Yuan, Mengjie Ye, Huan Wang, Qian Zhang, Ge Jin   +6 more
wiley   +1 more source

Validation of ShakeMaps Created From Global Navigation Satellite System (GNSS) Velocities

Earthquake Spectra, Volume 42, Issue 3, August 2026.
Ground velocity observations generated through a time difference of Global Navigation Satellite Systems (GNSS) phase observables and orbits have been shown to be comparable to seismic recordings without clipping during intense ground motions. Computing GNSS velocities is also computationally scalable and increases the density of ground motion ...
Jensen V. DeGrande, Brendan W. Crowell
wiley   +1 more source

Adaptive equaliser for multipath channels

Electronics Letters, 1970
An adaptive equalising system is described which makes possible efficient communication of serial digital data over a multipath channel, within certain limitations of the severity of the multipath. This technique is particularly suitable for two paths of comparable strength.
R.T. Boyd, F.C. Monds
openaire   +1 more source