Zobrazeno 1 - 10
of 1 482
pro vyhledávání: '"channel sounding"'
Autor:
Radek Zavorka, Tomas Mikulasek, Josef Vychodil, Jiri Blumenstein, Aniruddha Chandra, Hussein Hammoud, Jan M. Kelner, Cezary Ziolkowski, Thomas Zemen, Christoph Mecklenbrauker, Ales Prokes
Publikováno v:
IEEE Access, Vol 12, Pp 144738-144749 (2024)
The deployment of wireless systems in millimeter wave relies on a thorough understanding of electromagnetic wave propagation under various weather conditions and scenarios. In this study, we characterize millimeter wave propagation effects from measu
Externí odkaz:
https://doaj.org/article/1c756efe57e44393be1682c2978448bf
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 3, Pp 759-777 (2024)
This article presents comprehensive double-directional channel measurements with time-domain channel sounding at 300 GHz that characterize the channel of wireless links in a data center. The channels are classified into three scenario-dependent use c
Externí odkaz:
https://doaj.org/article/01ed65d9d77b461f8066e3d179aff86d
Autor:
Rajeev Shukla, Abhishek Narayan Sarkar, Aniruddha Chandra, Jan M. Kelner, Cezary Ziolkowski, Tomas Mikulasek, Ales Prokes
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2023, Iss 1, Pp 1-16 (2023)
Abstract Radio wave propagation in an intra-vehicular (IV) environment is markedly different from other well-studied indoor scenarios, such as an office or a factory floor. While millimetre wave (mmWave)-based intra-vehicular communications promise l
Externí odkaz:
https://doaj.org/article/20a97a765e4846629c2cf0914b7ae2da
Publikováno v:
IEEE Access, Vol 11, Pp 124040-124054 (2023)
In this paper, a newly developed 300 GHz channel sounder is presented followed by a detailed description of test measurements and the subsequent results obtained to validate its working. An elucidation of the high-resolution double-directional channe
Externí odkaz:
https://doaj.org/article/3d98be02ec264d22b5b4db0ac2b4700f
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 799-814 (2023)
Quantification of uncertainties in the results of channel sounding measurements is important for their interpretation and further usage. In this paper, a novel uncertainty analysis methodology to quantify uncertainties of condensed parameters in meas
Externí odkaz:
https://doaj.org/article/ffb6a5707be14753a6a342af94191281
Akademický článek
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Publikováno v:
Entropy, Vol 25, Iss 10, p 1397 (2023)
Many physical-layer security works in the literature rely on purely theoretical work or simulated results to establish the value of physical-layer security in securing communications. We consider the secrecy capacity of a wireless Gaussian wiretap ch
Externí odkaz:
https://doaj.org/article/cc4d4ce386614ce4a42a1f96d3a21172
Publikováno v:
Tongxin xuebao, Vol 43, Pp 34-48 (2022)
Firstly, the different characteristics of terahertz waves compared to lower frequency bands were summarized, including the influence of meteorological factors and rough surfaces of materials on THz waves.Next, it was proposed to use ray-tracing (RT)
Externí odkaz:
https://doaj.org/article/ff8d6f24fde74fcca66c1f66439081e6
Autor:
Damla Guven, Benjamin F. Jamroz, Jack Chuang, Camillo Gentile, Robert D. Horansky, Kate A. Remley, Dylan F. Williams, Jeanne T. Quimby, Alec J. Weiss, Rodney Leonhardt
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 461-474 (2022)
Millimeter-wave (mmWave) communications promise Gigabit/s data rates thanks to the availability of large swaths of bandwidth between 10–100 GHz. Although cellular operators prefer the lower portions of the spectrum due to popular belief that propag
Externí odkaz:
https://doaj.org/article/728996c5b7e440ee8b55df6ee3ba8595
Publikováno v:
IEEE Access, Vol 10, Pp 21264-21276 (2022)
Spatial modulation (SM) as a multiple-input multiple-output (MIMO) technique is a solution suitable which offers, with low system complexity and cost, improved spectral efficiency compared to single-input-single-output (SISO) systems. Moreover, the t
Externí odkaz:
https://doaj.org/article/856d65fd79194dd1b16fc2d1ffe8f806