Zobrazeno 1 - 10
of 242
pro vyhledávání: '"de Almeida, A. L. F."'
Recent research has delved into advanced designs for reconfigurable intelligent surfaces (RIS) with integrated sensing functions. One promising concept is the hybrid RIS (HRIS), which blends sensing and reflecting meta-atoms. This enables HRIS to pro
Externí odkaz:
http://arxiv.org/abs/2409.19779
This paper addresses the channel estimation problem for beyond diagonal reconfigurable intelligent surface (BD-RIS) from a tensor decomposition perspective. We first show that the received pilot signals can be arranged as a three-way tensor, allowing
Externí odkaz:
http://arxiv.org/abs/2407.20402
Autor:
Benício, Kenneth B. A., de Almeida, André L. F., Sokal, Bruno, Fazal-E-Asim, Makki, Behrooz, Fodor, Gabor
This paper proposes a tensor-based parametric modeling and estimation framework in multiple-input multiple-output (MIMO) systems assisted by intelligent reflecting surfaces (IRSs). We present two algorithms that exploit the tensor structure of the re
Externí odkaz:
http://arxiv.org/abs/2306.12309
In this letter, we consider an intelligent reflecting surface (IRS)-assisted multiple input multiple output (MIMO) communication and we optimize the joint active and passive beamforming by exploiting the geometrical structure of the propagation chann
Externí odkaz:
http://arxiv.org/abs/2305.14650
Autor:
Benicio, Kenneth B. A., de Almeida, André L. F., Sokal, Bruno, Fazal-E-Asim, Makki, Behrooz, Fodor, Gábor
This letter proposes a model for symbol detection in the uplink of IRS-assisted networks in the presence of channel aging. During the first stage, we model the received pilot signal as a tensor, which serves as a basis for both estimating the channel
Externí odkaz:
http://arxiv.org/abs/2305.10499
This paper proposes a pilot decoupling-based two-dimensional channel parameter estimation method for intelligent reflecting surface (IRS)-assisted networks. We exploit the combined effect of Terahertz sparse propagation and the geometrical structure
Externí odkaz:
http://arxiv.org/abs/2305.04393
This paper proposes tensor-based channel estimation for reconfigurable intelligent surface (RIS)-assisted communication networks. We exploit the inherent geometrical structure of the Terahertz propagation channel, including the antenna array geometri
Externí odkaz:
http://arxiv.org/abs/2304.05576
Autor:
Gomes, Paulo R. B., de Araújo, Gilderlan T., Sokal, Bruno, de Almeida, André L. F., Makki, Behrooz, Fodor, Gábor
Reconfigurable intelligent surface is a potential technology component of future wireless networks due to its capability of shaping the wireless environment. The promising MIMO systems in terms of extended coverage and enhanced capacity are, however,
Externí odkaz:
http://arxiv.org/abs/2207.02700
Passive intelligent reconfigurable surfaces (IRS) are becoming an attractive component of cellular networks due to their ability of shaping the propagation environment and thereby improving the coverage. While passive IRS nodes incorporate a great nu
Externí odkaz:
http://arxiv.org/abs/2206.05341
Autor:
Gomes, Paulo R. B., de Araújo, Gilderlan T., Sokal, Bruno, de Almeida, André L. F., Makki, Behrooz, Fodor, Gábor
Reconfigurable intelligent surface (RIS) is a candidate technology for future wireless networks. It enables to shape the wireless environment to reach massive connectivity and enhanced data rate. The promising gains of RIS-assisted networks are, howe
Externí odkaz:
http://arxiv.org/abs/2206.03557