Zobrazeno 1 - 10
of 414
pro vyhledávání: '"Analog beamforming"'
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 3, Pp 521-536 (2024)
We derive a general expression for the mth-order intercept point (IPm) of an analog RF receive beamforming system comprising multiple inputs, an array of nonlinear elements, and a single output. Given parallel inputs, the general IPm expression inclu
Externí odkaz:
https://doaj.org/article/a3416300ab7547249e387c584c1f2788
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 3753-3761 (2024)
In-band full-duplex (IBFD) can double the spectral efficiency of wireless communications systems. However, its major drawback is the self-interference, which interferes with the desired signal at the terminal. Self-interference cancelation can be ope
Externí odkaz:
https://doaj.org/article/912fb43370d44b7e97ab3ffade864fdf
Autor:
Kali Krishna Kota, Praful D. Mankar
Publikováno v:
IEEE Access, Vol 12, Pp 46149-46164 (2024)
This paper aims to explore reconfigurable intelligent surface (RIS) integration in a millimeter wave (mmWave) communication system with low-complexity transceiver architecture under imperfect channel state information (CSI) assumption. Motivated by t
Externí odkaz:
https://doaj.org/article/dd4f174c8f6d4cf486ac1720ee4f3fe9
Publikováno v:
Entropy, Vol 26, Iss 3, p 253 (2024)
Millimeter-wave (mmWave) communication systems leverage the directional beamforming capabilities of antenna arrays equipped at the base stations (BS) to counteract the inherent high propagation path loss characteristic of mmWave channels. In downlink
Externí odkaz:
https://doaj.org/article/1f033f15219d4d79a55ba05cd44d80da
Publikováno v:
IEEE Access, Vol 11, Pp 53716-53735 (2023)
This paper describes a current-mode on-chip analog architecture suitable for multi-beamforming of IF band signals from small- to moderate-sized antenna arrays. The architecture uses an approximate discrete Fourier transform (a-DFT) to realize the lin
Externí odkaz:
https://doaj.org/article/fed6b3ae0c0e4ebbb08cd8374f4b5308
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2022, Iss 1, Pp 1-22 (2022)
Abstract 5G and IEEE 802.11ay introduce the use of the millimeter band as one promising solution to provide broadband wireless communication at multi-Gb/s user data rate. Due to the severe path-loss at such frequencies, it is generally assumed that l
Externí odkaz:
https://doaj.org/article/530052580f864c5c9abd8aca7e1960da
Publikováno v:
Bioengineering, Vol 11, Iss 1, p 8 (2023)
Low-complexity ultrasound systems are increasingly desired for both wearable, point-of-care ultrasound and high-end massive-channel ultrasound for 3-D matrix imaging. However, the imaging capabilities, including spatial resolution and contrast, could
Externí odkaz:
https://doaj.org/article/a597d9540b7a4039a3a24316faa268da
Autor:
Kai Xu, Jiayu Hou, Li Wang, Simona Sibio, John S. Thompson, Stephen McLaughlin, Yuan Ding, Gunnar Peters
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 3, Pp 2461-2471 (2022)
A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonst
Externí odkaz:
https://doaj.org/article/07b19b8f298641fcba2e68f9647f5020
Autor:
Kalle Spoof, Miikka Tenhunen, Vishnu Unnikrishnan, Kari Stadius, Marko Kosunen, Jussi Ryynanen
Publikováno v:
IEEE Access, Vol 10, Pp 116375-116383 (2022)
Spatial diversity advantages such as improved signal-to-noise ratio and in-band blocker filtering can be achieved through beamforming in the digital and/or analog domain. Digital beamforming benefits from the precision and efficient parallelization o
Externí odkaz:
https://doaj.org/article/a562159a55d34dc481d0321826903ef8
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.