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Academic Articles & Research Papers
Showing 17 of 17 academic articles
Krzysztof Kościański • Sport i Turystyka
(2021)
W pracy przedstawiono infrastrukturę sportową dla potrzeb piłki nożnej w Częstochowie w latach międzywojennych. Artykuł powstał głównie na podstawie źródeł archiwalnych i prasowych. Przeprowadzone badania wykazały, że w Częstochowie w okres...
DOAJ
Open Access (DOAJ)
DOI: 10.16926/sit.2021.04.17
Kazuki Uemura, Takehiko Doi, Kota Tsutsumimoto, Sho Nakakubo et al. • Journal of Cachexia, Sarcopenia and Muscle
(2020)
Abstract Background Bioelectrical impedance analysis (BIA)‐derived phase angle is expected to be an efficient prognostic marker of health adverse events with aging as an alternative of muscle mass. We aimed to examine the predictive ability...
DOAJ
Open Access (DOAJ)
DOI: 10.1002/jcsm.12492
Philippe Loubaton, Florian Dupuy • Entropy
(2012)
This paper provides a comprehensive introduction of large random matrix methods for input covariance matrix optimization of mutual information of MIMO systems. It is first recalled informally how large system approximations of mutual inform...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/e14112122
Lin Li, Fangfang Chen, Jisheng Dai • International Journal of Antennas and Propagation
(2016)
A novel MUSIC-type algorithm is derived in this paper for the direction of departure (DOD) and direction of arrival (DOA) estimation in a bistatic MIMO radar. Through rearranging the received signal matrix, we illustrate that the DOD and th...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/2016/9170403
Tommy Hult, Abbas Mohammed • International Journal of Antennas and Propagation
(2010)
We analyze the destructive effects of mutual coupling and spatial correlation between the separate antenna elements on a combined diversity system consisting of multiple HAPs (High-Altitude Platforms) employing various compact MIMO (Multipl...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/2010/492915
Xia Liu, Marek E. Bialkowski • International Journal of Antennas and Propagation
(2010)
This paper reports investigations on the effect of antenna mutual coupling on performance of training-based Multiple-Input Multiple-Output (MIMO) channel estimation. The influence of mutual coupling is assessed for two training-based channe...
DOAJ
Open Access (DOAJ)
DOI: 10.1155/2010/213576
Krystyna Górna-Łukasik, Karel Frömel, Krzysztof Skalik, Petra Nováková Lokvencová • Acta Universitatis Palackianae Olomucensis. Gymnica
(2011)
BACKGROUND: It has been well evidenced that physical activity (PA) has a positive effect on human health. It is very likely that a physically active child will grow up to be a physically active adult. Growing older, there is evidence of dec...
DOAJ
Open Access (DOAJ)
Wei Wang, Dong Liang, Zhihua Wang, Haiyang Yu et al. • Radioengineering
(2015)
The work presented in this paper is aimed at the implementation of a real-time multiple-input multiple-output (MIMO) imaging radar used for area surveillance. In this radar, the equivalent virtual array method and time-division technique ar...
DOAJ
Open Access (DOAJ)
Chenlin He, Xiaojun Wang, Jiyu Jiao, Yuhua Huang et al. • Urban Lifeline
(2024)
Abstract The combination of fingerprint positioning and 5G (the 5th Generation Mobile Communication Technology) offers broader application prospects for indoor positioning technology, but also brings challenges in real-time performance. In ...
DOAJ
Open Access (DOAJ)
DOI: 10.1007/s44285-024-00021-4
Gérard Favier, Danilo Sousa Rocha • Entropy
(2023)
Due to increasingly strong and varied performance requirements, cooperative wireless communication systems today occupy a prominent place in both academic research and industrial development. The technological and economic challenges for fu...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/e25081181
Kamal Hossain Nahin, Jamal Hossain Nirob, Akil Ahmad Taki, Md Ashraful Haque et al. • Scientific Reports
(2025)
Abstract This paper introduces the design and exploration of a compact, high-performance multiple-input multiple-output (MIMO) antenna for 6G applications operating in the terahertz (THz) frequency range. Leveraging a meta learner-based sta...
DOAJ
Open Access (DOAJ)
DOI: 10.1038/s41598-025-88174-2
Umar Farooq, Amalia Miliou • Photonics
(2025)
This article presents the decision feedback equalizer (DFE), the maximum likelihood detection (MLD), and the radius-directed equalization (RDE) algorithms designed in MATLAB-R2018a to equalize the received signal in a dispersive optical lin...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/photonics12050496
Rosana Abdoune, Lydia Lazib, Farida Dahmani-Bouarab, Nada Mimouni • Inteligencia Artificial
(2024)
In this work, we present a disciplinary e-tutoring system that integrates ONTO-TDM, an ontology designed for teaching domain modeling, with advanced transformer technology. Our primary objective is to enhance semantic similarity tasks withi...
DOAJ
Open Access (DOAJ)
Jooho Wang, Sungkyung Park, Chester Sungchung Park • IEEE Access
(2021)
The hardware accelerator controlled by direct memory access (DMA) is greatly influenced by the communication bandwidth from/to DRAM through on-chip buses. This paper proposes a novel performance estimation algorithm to optimize the communic...
DOAJ
Open Access (DOAJ)
DOI: 10.1109/ACCESS.2021.3118094
Chao-Kai Wen, Wan-Ting Shih, Shi Jin • IEEE Wireless Communications Letters
(2018)
In frequency division duplex mode, the downlink channel state information (CSI) should be sent to the base station through feedback links so that the potential gains of a massive multiple-input multiple-output can be exhibited. However, suc...
OPENALEX
Open Access
DOI: https://doi.org/10.1109/lwc.2018.2818160
Qing Chen, Aihuang Guo, Yaodong Cui • Applied Sciences
(2024)
To achieve the anticipated performance of massive multiple input multiple output (MIMO) systems in wireless communication, it is imperative that the user equipment (UE) accurately feeds the channel state information (CSI) back to the base s...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/app14041356
Doyeon Weon, Kyungchun Lee • IEEE Access
(2020)
In this paper, we propose a novel learning-aided sphere decoding (SD) scheme for large multiple-input-multiple-output systems, namely, deep path prediction-based sphere decoding (DPP-SD). In this scheme, we employ a neural network (NN) to p...
DOAJ
Open Access (DOAJ)
DOI: 10.1109/ACCESS.2020.2987375