Browsing by Author "Omri, Aymen"
Now showing items 1-10 of 10
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An efficient reduced complexity PAPR reduction approach for 3GPP LTE system
Sghaier, Mouna; Abdelkefi, Fatma; Omri, Aymen; Siala, Mohamed ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In wideband communication systems, Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) has been proposed as an efficient technique to enhance the link reliability and the spectral efficiency. ... -
Estimation of highly selective channels for downlink LTE systemby a robust neural network
Omri, Aymen; Hamila, R.; Hasna, M.; Bouallegue, R.; Chaieb, H. ( Hamad bin Khalifa University Press (HBKU Press) , 2010 , Conference Paper)In this paper we propose a robust channel estimator for the downlink of a Long Term Evolution (LTE) system using a highly selective neural network. This method uses the information provided by the reference signals to ... -
Interference management schemes for multi-user cooperative wireless networks
Omri, Aymen; Hasna, Mazen O. ( John Wiley and Sons Ltd , 2016 , Article)Cooperative communication is a promising technique for future wireless networks. It can be used in improving communication reliability and enhancing spectrum efficiency by using the broadcast nature of radio communication ... -
Mode selection schemes for D2D enabled unmanned aerial vehicle-based wireless networks
Omri, Aymen; Hasna, Mazen O.; Shakir, Muhammad Zeeshan; Shaqfeh, Mohammed ( Institution of Engineering and Technology , 2019 , Article)In this study, the authors present and evaluate the performance of two mode selection schemes for device-to-device (D2D) enabled unmanned aerial vehicle-based wireless networks. The proposed schemes are based on a threshold ... -
Modeling and Performance Analysis of 3-D Heterogeneous Networks with Interference Management
Omri, Aymen; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)This letter proposes a general 3-D model for heterogeneous networks (HetNets). The model uses stochastic geometry to describe the different network nodes' positions in a 3-D space. In addition, a new transmission scheme ... -
Modeling and performance analysis of D2D communications with interference management in 3-D HetNets
Omri, Aymen; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, a general 3-D model for K-tier heterogeneous networks (HetNets) is proposed to investigate the performances of device-to-device (D2D) communications in highrise centers. The new model is based on stochastic ... -
Modelling and performance analysis of 3-D heterogeneous cellular networks
Omri, Aymen; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Cellular networks are usually described by two-dimensional (2-D) models. These models are appropriate for rural or suburban areas but are not suitable for dense urban environments, where a large number of heterogeneous ... -
Optimization of base stations density for hybrid energy based 3-D wireless networks
Omri, Aymen; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Hybrid energy supply (HES) based wireless communication systems have recently emerged as a new paradigm to enable green networks, which are powered by both the traditional and harvested energies. In this paper, we propose ... -
Optimization of effective area spectral efficiency for wireless communications systems under Nakagami-m fading channels
Omri, Aymen; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, we present an optimization of the effective area spectral efficiency (EASE) metric for point-to-point transmission systems, and decode-and-forward (DF) relaying communications networks under Nakagami-m fading ... -
Performance analysis of full-duplex multiuser decode-And-forward relay networks with interference management
Omri, Aymen; Behbahani, Alireza S.; Eltawil, Ahmed M.; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, a cooperative communications scheme with interference management is proposed for Full-Duplex (FD) multi-user, decode-And-forward (DF) relay networks. The scheme is based on a relay selection method that ...