Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Khaled Ardah"'
Publikováno v:
IEEE Signal Processing Letters. 28:513-517
We consider the channel estimation problem in point-to-point reconfigurable intelligent surface (RIS)-aided millimeter-wave (mmWave) MIMO systems. By exploiting the low-rank nature of mmWave channels in the angular domains, we propose a non-iterative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29287bfe3549ed2f58b36d5f780b601e
https://doi.org/10.1109/lsp.2021.3059363
https://doi.org/10.1109/lsp.2021.3059363
Publikováno v:
2022 IEEE 12th Sensor Array and Multichannel Signal Processing Workshop (SAM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9e416077cecd0a35b79afc791afaf6
https://doi.org/10.1109/sam53842.2022.9827850
https://doi.org/10.1109/sam53842.2022.9827850
Publikováno v:
IEEE Transactions on Vehicular Technology. 69:377-389
Hybrid analog-digital (HAD) beamforming architectures have been proposed to facilitate the practical implementation of massive multiple-input multiple-output (MIMO) systems by reducing the number of employed radio frequency chains. While most prior s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0cc5684050a1d527f4b6666c7c92694
https://doi.org/10.1109/tvt.2019.2933305
https://doi.org/10.1109/tvt.2019.2933305
Publikováno v:
Compressed Sensing in Information Processing ISBN: 9783031097447
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59d148acd55dadf3750df7c63a24b5ff
https://doi.org/10.1007/978-3-031-09745-4_7
https://doi.org/10.1007/978-3-031-09745-4_7
Reconfigurable intelligent surfaces (RISs) have been proposed recently as new technology to tune the wireless propagation channels in real-time. However, most of the current works assume single-RIS (S-RIS)-aided systems, which can be limited in some
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0aacd1f96a48157b46dc0355412819c
http://arxiv.org/abs/2109.09099
http://arxiv.org/abs/2109.09099
Publikováno v:
SSP
In this work, we consider the design of hybrid analog-digital (HAD) multi-carrier MIMO-OFDM two-way relaying systems, where the relay station is equipped with a HAD amplify-and-forward architecture and every mobile station is equipped with a fully-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf88f36e56f965969b116f5ff5b47361
http://arxiv.org/abs/2105.09849
http://arxiv.org/abs/2105.09849
Publikováno v:
SAM
Hybrid beamforming (HBF) structures have been recently proposed as one of the solutions to reduce cost and energy consumption of fully-digital multi-user MIMO systems in the millimeter-wave range. However, most of the initial references on HBF design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03b30a1b27bc427c5f6850a9532b3f19
https://doi.org/10.1109/sam48682.2020.9104405
https://doi.org/10.1109/sam48682.2020.9104405
Publikováno v:
ICASSP
Channel estimation in hybrid analog-digital massive MIMO systems is a challenging problem due to the high channel dimension, low signal-to-noise ratio before beamforming, and reduced number of radio-frequency chains. Compressed sensing based algorith
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a91624e6e7db7ff270cf9ddefe3aff91
https://doi.org/10.1109/icassp40776.2020.9054443
https://doi.org/10.1109/icassp40776.2020.9054443
Publikováno v:
IEEE Transactions on Vehicular Technology. 67:11243-11247
Hybrid beamforming (BF) architectures employing phase shifters or switches reduce the number of required radio frequency chains and the power consumption of base stations that employ a large number of antennas. Due to the inherent tradeoff between th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68c300af1d2d8ac36d235146f853d26f
https://doi.org/10.1109/tvt.2018.2865705
https://doi.org/10.1109/tvt.2018.2865705
Publikováno v:
IEEE Wireless Communications Letters. 7:320-323
In dynamic time division duplexing (DTDD) systems, the uplink (UL) and downlink (DL) resources can be configured to adapt to changing traffic conditions. Therefore, DTDD systems are advantageously deployed in scenarios in which the UL and DL traffic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3e7f4e5efde487c07c77167e20871a2
https://doi.org/10.1109/lwc.2017.2776264
https://doi.org/10.1109/lwc.2017.2776264