Zobrazeno 1 - 10
of 816
pro vyhledávání: '"cellular system"'
Autor:
Chu-Tung Liu, Hsuan-Jung Su, Hsien-Bo Tseng, Jhe-Yi Lin, Wei-Hsiang Wang, Alan Shenghan Tsai, Yasuhiro Takano
Publikováno v:
IEEE Access, Vol 12, Pp 112290-112307 (2024)
Device-to-Device (D2D) communications facilitate direct data exchange between two devices, bypassing the necessity of routing through a central base station. This proximity-based communication offers advantages such as high data rates, low latency, r
Externí odkaz:
https://doaj.org/article/788ef6d55afb4371a026556c8c566268
Publikováno v:
物联网学报, Vol 7, Pp 15-23 (2023)
Passive internet of things (IoT) is the fundamentally enabling technology of promoting digital transformation and upgrading of industries.In recent years, passive IoT communication technology such as radio frequency identification has been widely use
Externí odkaz:
https://doaj.org/article/08a5070a75b2416fb8c1aaf0297a214a
Publikováno v:
Digital Communications and Networks, Vol 9, Iss 3, Pp 757-768 (2023)
In cellular systems, establishing the initial symbol timing of potential preambles is the first step of a cell search. The envelope fluctuation of the downlink signal hinders the successful timing of conventional symbol timing methods. To solve this
Externí odkaz:
https://doaj.org/article/0ad5afe4fa4a4392aa79a70db2ab2976
Autor:
Péter L. Erdős, Tamás Róbert Mezei
Publikováno v:
Algorithms, Vol 16, Iss 7, p 341 (2023)
In contemporary wireless communication networks, base stations are organized into coordinated clusters (called cells) to jointly serve the users. However, such fixed systems are plagued by the so-called cell-edge problem: near the boundaries, the int
Externí odkaz:
https://doaj.org/article/bbf18582b46a4f6f8fcda530dc0b0474
Autor:
Yu Zhou, Hatim Alhazmi, Mohsen H. Alhazmi, Alhussain Almarhabi, Mofadal Alymani, Mingju He, Shengliang Peng, Abdullah Samarkandi, Zikang Sheng, Huaxia Wang, Yu-Dong Yao
Publikováno v:
Intelligent and Converged Networks, Vol 2, Iss 1, Pp 16-29 (2021)
Radio spectrum awareness, including understanding radio signal activities, is crucial for improving spectrum utilization, detecting security vulnerabilities, and supporting adaptive transmissions. Related tasks include spectrum sensing, identifying s
Externí odkaz:
https://doaj.org/article/8edf24ccc126428fbb35ef6ebb72c8d0
Publikováno v:
Ain Shams Engineering Journal, Vol 12, Iss 1, Pp 487-495 (2021)
In cellular networks, users near the edge of the cell are usually suffering from low signal-to-noise-plus-interference-ratio (SINR) levels as a result from being far away from the base-station (BS). Many factors could lead to huge attenuation of the
Externí odkaz:
https://doaj.org/article/e22c60289326457d9ee84741d8974ad4
Constraint Waveform Design for Spectrum Sharing Under Coexistence of Radar and Communication Systems
Publikováno v:
IEEE Access, Vol 9, Pp 46093-46105 (2021)
Waveform design and spectrum sharing between Multiple Input Multiple Output (MIMO) radar and MIMO communication system is an optimization problem that has been typically addressed in literature with two-dimensional formalism involving radius and azim
Externí odkaz:
https://doaj.org/article/dba6fb8e3e554cff8ac55201b3fa0899
Publikováno v:
IEEE Access, Vol 8, Pp 80454-80467 (2020)
Due to short wavelength and weak diffraction ability, millimeter-wave (mmWave) signals are highly susceptible to blockage, which results in significant degradation in received signal power. As a possible solution for overcoming the blockage problem i
Externí odkaz:
https://doaj.org/article/674a3f4a9d7c48e98e666908cb8cc6bf
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Akademický článek
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