Zobrazeno 1 - 10
of 2 236
pro vyhledávání: '"Space time coding"'
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 150-159 (2024)
The traditional Direction Of Arrival (DOA) estimation is typically based on phased array antenna systems. However, it is greatly limited by the high hardware cost for applications in various fields. In addition, conventional phased array antennas als
Externí odkaz:
https://doaj.org/article/fda6a961212747a09f2f769cf4bb472d
Autor:
Zhangjie Luo, Zhiming Zhang, Junwei Tai, Lei Zhang, Chenglong Gao, Hui Feng Ma, Wei Xiang Jiang, Qiang Cheng, Tie Jun Cui
Publikováno v:
Advanced Science, Vol 11, Iss 34, Pp n/a-n/a (2024)
Abstract Harmonic generation and utilization are significant topics in nonlinear science. Although the progress in the microwave region has been expedited by the development of time‐modulated metasurfaces, one major issue of these devices is the st
Externí odkaz:
https://doaj.org/article/81a09752317144ea901ab02477e14663
Autor:
Israt Ara, Brian Kelley
Publikováno v:
IEEE Access, Vol 12, Pp 82800-82824 (2024)
This paper lays the foundations for Physical Layer Security (PLS) as a native 6G communication operation mode. 6G mobile network will enable intelligent applications, automated services, and low-latency connectivity to data networks. Security perform
Externí odkaz:
https://doaj.org/article/85c710edde7547cdacfb6c36f0f739a3
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3322 (2024)
Digital array radar (DAR) can fully realize digitalization at both the transmitting and receiving ends. However, the development of freedom at the transmitting end is far from mature. So, the new concept of multi-dimensional waveform coding array has
Externí odkaz:
https://doaj.org/article/a0bd4cb237184ce29fe3814c71c56408
Autor:
Kabaou Mohamed Ouwais, Zoghlami Nesrine, Hafidhi Intidhar, Hamouda Hassen, Ben Abdennour Anouar
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 3, Pp 102473- (2024)
The objective of this article is to analyze the behavior of channels in mobile radio transmission chains and propose a solution for reducing propagation attenuation and ensuring Quality of Service (QoS) in telecommunications. As network coverage and
Externí odkaz:
https://doaj.org/article/11659b165b284ed2838fcf0f1be43220
Publikováno v:
Malaysian Journal of Computing, Vol 8, Iss 1, Pp 1363-1374 (2023)
his paper proposes a novel method for deploying massive multiple-input multiple-output (MIMO) systems, an essential component of next-generation wireless networks. The proposed method is designed to address the challenges of deploying MIMO systems in
Externí odkaz:
https://doaj.org/article/14ca2f38d5644cb287c6a35612dc5491
Toward Sub‐Terahertz: Space‐Time Coding Metasurface Transmitter for Wideband Wireless Communications
Autor:
Yujie Liu, Yu Wang, Xiaojian Fu, Lei Shi, Fei Yang, Jiang Luo, Qun Yan Zhou, Yuan Fu, Qi Chen, Jun Yan Dai, Lei Zhang, Qiang Cheng, Tie Jun Cui
Publikováno v:
Advanced Science, Vol 10, Iss 29, Pp n/a-n/a (2023)
Abstract A space‐time coding metasurface (STCM) operating in the sub‐terahertz band to construct new‐architecture wireless communication systems is proposed. Specifically, a programmable STCM is designed with varactor‐diode‐tuned metasurfac
Externí odkaz:
https://doaj.org/article/6f32d844721f4602b1f93c3cd1425b44
Publikováno v:
Journal of Informatics and Web Engineering, Vol 2, Iss 1, Pp 49-55 (2023)
Space-time coding combines time and space to generate codewords, transmitting signals in both time and space domains. This leads to not only diversity and coding gains but also reduces the impact of multipath fading, resulting in high spectral effici
Externí odkaz:
https://doaj.org/article/998f54ff7dc44015a5734bd08f070bdd
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2022, Iss 1, Pp 1-26 (2022)
Abstract The slice-wise multiplication of two tensors is required in a variety of tensor decompositions (including PARAFAC2 and PARATUCK2) and is encountered in many applications, including the analysis of multidimensional biomedical data (EEG, MEG,
Externí odkaz:
https://doaj.org/article/1f542999bd7c467ca0bc44773f6b3af6
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