Zobrazeno 1 - 10
of 371
pro vyhledávání: '"de Lamare, R."'
Autor:
Porto, R., de Lamare, R. C.
We present a novel iterative detection and decoding (IDD) scheme for Reconfigurable Intelligent Surface (RIS)-assisted multiuser multiple-antenna systems. The proposed approach introduces a joint iterative detection strategy that integrates Low-Densi
Externí odkaz:
http://arxiv.org/abs/2411.01388
Autor:
Touati, H., de Lamare, R. C.
In this work, we investigate the decoding of Low-Density Parity-Check (LDPC) codes using informed dynamic scheduling algorithms that require a reduced number of iterations. In particular, we devise the weighted residual layered belief propagation (WR
Externí odkaz:
http://arxiv.org/abs/2410.13131
Autor:
Flores, A., de Lamare, R. C.
Cell-free (CF) systems have the potential to fulfill the increasing performance demand of future wireless applications by employing distributed access points (APs) that transmit the information over the same time-frequency resources. Due to the simul
Externí odkaz:
http://arxiv.org/abs/2410.04654
This paper proposes design techniques for partially-calibrated sparse linear subarrays and algorithms to perform direction-of-arrival (DOA) estimation. First, we introduce array architectures that incorporate two distinct array categories, namely typ
Externí odkaz:
http://arxiv.org/abs/2409.00033
Autor:
Leite, W. S., de Lamare, R. C.
This paper investigates the problem of direction-of-arrival (DOA) estimation using multiple partially-calibrated sparse subarrays. In particular, we present the Generalized Coarray Multiple Signal Classification (GCA-MUSIC) DOA estimation algorithm t
Externí odkaz:
http://arxiv.org/abs/2408.03236
Autor:
Flores, A., de Lamare, R.
Precoding techniques are key to dealing with multiuser interference in the downlink of cell-free (CF) multiple-input multiple-output systems. However, these techniques rely on accurate estimates of the channel state information at the transmitter (CS
Externí odkaz:
http://arxiv.org/abs/2407.05517
In this paper, we propose iterative interference cancellation schemes with access points selection (APs-Sel) for cell-free massive multiple-input multiple-output (CF-mMIMO) systems. Closed-form expressions for centralized and decentralized linear min
Externí odkaz:
http://arxiv.org/abs/2406.16675
Standard Direction of Arrival (DOA) estimation methods are typically derived based on the Gaussian noise assumption, making them highly sensitive to outliers. Therefore, in the presence of impulsive noise, the performance of these methods may signifi
Externí odkaz:
http://arxiv.org/abs/2405.16765
In this paper, we propose low-complexity local detectors and log-likelihood ratio (LLR) refinement techniques for a coded cell-free massive multiple input multiple output (CF- mMIMO) systems, where an iterative detection and decoding (IDD) scheme is
Externí odkaz:
http://arxiv.org/abs/2405.13312
Autor:
Mashdour, S., de Lamare, R. C.
In this work, we propose a clustering technique based on information rates for cell-free massive multiple-input multiple-output (MIMO) networks. Unlike existing clustering approaches that rely on the large scale fading coefficients of the channels an
Externí odkaz:
http://arxiv.org/abs/2404.18032