Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Filho, José Carlos Marinello"'
Publikováno v:
IEEE Transactions on Wireless Communications, 2014
Channel state information (CSI) estimation is a critical issue in the design of modern massive multiple-input multiple-output (mMIMO) networks. With the increasing number of users, assigning orthogonal pilots to everyone incurs a large overhead that
Externí odkaz:
http://arxiv.org/abs/2310.06975
Autor:
de Souza, João Henrique Inacio, Filho, José Carlos Marinello, Abrão, Taufik, Panazio, Cristiano
In this article, we study the uplink (UL) channel of a cellular network of Internet of Things (IoT) devices assisted by a reconfigurable intelligent surface (RIS) with a limited number of reflecting angle configurations. Firstly, we derive an express
Externí odkaz:
http://arxiv.org/abs/2302.14462
Autor:
de Souza, João Henrique Inacio, Filho, José Carlos Marinello, Abrão, Taufik, Panazio, Cristiano
Green Internet of Things (IoT) aims to enable a sustainable smart world by making energy efficiency (EE) the main performance indicator for IoT hardware and software. With respect to network design, this implies in developing energy-efficient communi
Externí odkaz:
http://arxiv.org/abs/2302.14453
The recent extra-large scale massive multiple-input multiple-output (XL-MIMO) systems are seen as a promising technology for providing very high data rates in increased user-density scenarios. Spatial non-stationarities and visibility regions (VRs) a
Externí odkaz:
http://arxiv.org/abs/2107.09169
Extra-large massive multiple-input multiple-output (XL-MIMO) systems is a new concept, where spatial non-stationarities allow activate a high number of user equipments (UEs). This paper focuses on a grant-based random access (RA) approach in the nove
Externí odkaz:
http://arxiv.org/abs/2009.02549
The orthogonal frequency division multiplexing (OFDM) transmission has shown promise in applications of visible light communication (VLC). However, the variation of the nonlinearity of the optical power emitted by the high power light emitting diode
Externí odkaz:
http://arxiv.org/abs/1904.10987
To exploit the benefits of massive multiple-input multiple-output (M-MIMO) technology in scenarios where base stations (BSs) need to be cheap and equipped with simple hardware, the computational complexity of classical signal processing schemes for s
Externí odkaz:
http://arxiv.org/abs/1904.04376
Akademický článek
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Publikováno v:
Int. J. Electron. Commun. (AEU) 96 (2018) 30-39
In this paper, we have analyzed the performance-complexity tradeoff of {a selective} likelihood ascent search (LAS) algorithm initialized by a linear detector, such as matched filtering (MF), zero forcing (ZF) and minimum mean square error (MMSE), {a
Externí odkaz:
http://arxiv.org/abs/1810.03041
Akademický článek
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