Zobrazeno 1 - 10
of 367
pro vyhledávání: '"Zaichen ZHANG"'
Autor:
Yue Wu, Ji Chen, Yin Wang, Zhongyi Yuan, Chunyu Huang, Jiacheng Sun, Chengyi Feng, Muyang Li, Kai Qiu, Shining Zhu, Zaichen Zhang, Tao Li
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Optical wireless communication (OWC) stands out as one of the most promising technologies in the sixth-generation (6G) mobile networks. The establishment of high-quality optical links between transmitters and receivers plays a crucial role i
Externí odkaz:
https://doaj.org/article/8abe0c094ce84abb8a162e67b9ec7656
Publikováno v:
iScience, Vol 27, Iss 5, Pp 109627- (2024)
Summary: The quantum denoising technology efficiently removes noise from images; however, the existing algorithms are only effective for additive noise and cannot remove multiplicative noise, such as speckle noise in synthetic aperture radar (SAR) im
Externí odkaz:
https://doaj.org/article/19267003d06c477ba5cb7127c9ec7e12
Publikováno v:
物联网学报, Vol 6, Pp 1-13 (2022)
Optical wireless communication (OWC) entitles many advantageous properties such as unlicensed spectrum, high electromagnetic compatibility, compared with its radio frequency wireless counterpart, which enables it to be a potential important driving f
Externí odkaz:
https://doaj.org/article/c1e43d248f1944b6b7546dcf8e1b4c97
Publikováno v:
Symmetry, Vol 16, Iss 2, p 180 (2024)
The engineering of quantum computers requires the reliable characterization of qubits, quantum operations, and even the entire hardware. Quantum tomography is an indispensable framework in quantum characterization, verification, and validation (QCVV)
Externí odkaz:
https://doaj.org/article/36a111e5ea36420c8668cb291fb3f8ef
Autor:
Xin Ge Zhang, Ya Lun Sun, Bingcheng Zhu, Wei Xiang Jiang, Qian Yu, Han Wei Tian, Cheng-Wei Qiu, Zaichen Zhang, Tie Jun Cui
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-10 (2022)
A metasurface-based light-to-microwave transmitter, which can convert a light intensity signal to two microwave signals directly, was proposed to achieve the dual-channel data transmissions in light-to-microwave hybrid wireless communications.
Externí odkaz:
https://doaj.org/article/5d8abb04641e4181b4cf179b2014853f
Publikováno v:
IET Communications, Vol 15, Iss 12, Pp 1576-1585 (2021)
Abstract Low earth orbit constellation satellite communication has the characteristics of low propagation delay, low path loss, low launch cost and wide range of applications. Due to the low orbital altitude and the short orbital period of low earth
Externí odkaz:
https://doaj.org/article/39798b5795ed4ec8ae7c2bb58dd31f6c
Autor:
Jian Dang, Shicheng Gao, Yongdong Zhu, Rongbin Guo, Hao Jiang, Zaichen Zhang, Liang Wu, Bingcheng Zhu, Lei Wang
Publikováno v:
IET Communications, Vol 15, Iss 3, Pp 421-434 (2021)
Abstract Intelligent reflecting surface (IRS) is a new concept originating from metamaterials, which can achieve beamforming through controllable passive reflecting. This device makes it possible to engineer the wireless communication environment, an
Externí odkaz:
https://doaj.org/article/da6f60de128842a68d168415ce6347a6
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 5, Pp 1-12 (2020)
Optical mobile communication (OMC) provides a hopeful vision to handle with wireless communication scenarios where multiple mobile users are involved. In previous work, achievable rate analysis for broadcast OMC system with coherent transmission and
Externí odkaz:
https://doaj.org/article/3120f5553aaa4aada16c1d9719d964ce
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2019, Iss 1, Pp 1-9 (2019)
Abstract In this journal, we investigate the beam-domain channel estimation and power allocation in hybrid architecture massive multiple-input and multiple-output (MIMO) communication systems. First, we propose a low-complexity channel estimation met
Externí odkaz:
https://doaj.org/article/c06248010b544096b437000e41edff9d
Publikováno v:
IEEE Access, Vol 7, Pp 11543-11553 (2019)
In this paper, a novel channel quality indicator (CQI) prediction scheme for adaptive modulation and coding in high-speed mobility environments is proposed, where the wavenumber spectrum segmentation filters' bank is utilized to improve the estimatio
Externí odkaz:
https://doaj.org/article/6910a2bd0ffc4511aeb6af643d2768ae