User profiles for "author:O Belkacem"

Oussama Belkacem

Assistant hospitalo-universitaire
Verified email at rns.tn
Cited by 12

Performance analysis of NOMA in 5G systems with HPA nonlinearities

OBH Belkacem, ML Ammari, R Dinis - IEEE Access, 2020 - ieeexplore.ieee.org
In this paper, we provide an analytical performance assessment of downlink non-orthogonal
multiple access (NOMA) systems over Nakagami-m fading channels in the presence of …

Nonlinear effects in NOMA-OFDM systems: Analytical signal characterization and receiver design

OBH Belkacem, R Dinis… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Non orthogonal multiple access (NOMA) is being considered a key technology for future
communications. In this paper, we provide an analytical characterization of downlink NOMA …

[HTML][HTML] Theoretical analysis and compensation for the joint effects of HPA nonlinearity and RF crosstalk in VBLAST MIMO-OFDM systems over Rayleigh fading …

MC Dakhli, R Zayani, OB Belkacem… - EURASIP Journal on …, 2014 - Springer
In this paper, we investigate the joint effects of nonlinear distortions due to high-power
amplifier (HPA) and radio-frequency (RF) crosstalk on the performance of a multiple-input …

[HTML][HTML] Significance of p53, p27, Ki-67, E-cadherin, and HER2 expression in upper urinary tract urothelial carcinoma

…, A Bdioui, A Baccouche, O Belkacem… - Journal of the Egyptian …, 2020 - Springer
Background The study investigated the expression and the clinicopathological significance
of p53, p27, Ki-67, E-cadherin, and HER2 in upper urinary tract urothelial carcinomas …

Bayesian modelling for human error probability analysis in CREAM

…, J Wang, M Rochdi, O Belkacem - … conference on quality …, 2011 - ieeexplore.ieee.org
Cognitive reliability and error analysis method (CREAM) has been developed and gradually
complemented with novel quantitative techniques to enhance its inherent perspective …

Rupture of a liver hydatid cyst into the right portal vein leading to right portal vein thrombosis: a case report and literature review

…, H Ben Hamada, O Belkacem… - Journal of …, 2023 - journals.sagepub.com
Hydatid disease (HD) is a worldwide parasitic disease. HD is endemic in many sheep-and
cattle-raising areas, with a high prevalence of 5% to 10% in the Mediterranean region …

Neural network equalization for frequency selective nonlinear MIMO channels

OB Belkacem, R Zayani, ML Ammari… - … IEEE Symposium on …, 2012 - ieeexplore.ieee.org
In order to provide high data rate over wireless channels and improve the system capacity,
Multiple-Input Multiple-Output (MIMO) wireless communication systems exploit spatial …

[HTML][HTML] Renal cell carcinoma with atypical metastases sites revealed by diabetes mellitus: A case report

N Jelleli, A Loghmari, O Belkacem, G Tlili… - Annals of medicine and …, 2022 - Elsevier
Introduction and importance Lung, bone, lymph nodes and liver are the most common
metastatic sites. This observation presents a metastatic renal cell carcinoma (RCC) with …

Nonlinear Effects in NOMA Systems Using Single Carrier Modulations: Performance Evaluation and Receiver Design

OBH Belkacem, R Dinis, ML Ammari - IEEE Access, 2024 - ieeexplore.ieee.org
Non orthogonal multiple access (NOMA) systems are very important for future
communications which allows a huge increase in capacity gains when comparing to …

OQAM-FBMC based radar sensing and wireless communication in V2V context

K Ammar, OBH Belkacem… - 2021 IEEE Symposium …, 2021 - ieeexplore.ieee.org
The Joint Radar Communications (RadCom) system uses a shared waveform to sense the
environment and transmit information simultaneously. In this paper, we propose a combined …