Browsing by Author "Omri, A."
Now showing items 1-20 of 22
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3-D Placement Schemes of Multiple UAVs in NFP-based Wireless Networks
Omri A.; Hasna M.O.; Shakir M.Z.; Shaqfeh M. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)In this paper, we propose two placement strategies of multiple unmanned aerial vehicles (UAVs) in network flying platform (NFP)-based wireless networks. The first strategy is based on a proposed distributed placement ... -
A Distance-Based Mode Selection Scheme for D2D-Enabled Networks with Mobility
Omri A.; Hasna M.O. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)In this paper, a new mode selection scheme for device-to-device (D2D)-enabled cellular communications with mobility is proposed and evaluated. The new scheme is based on an average threshold D2D distance between two given ... -
Average Secrecy Outage Rate and Average Secrecy Outage Duration of Wireless Communication Systems with Diversity over Nakagami-m Fading Channels
Omri A.; Hasna M.O. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)This paper presents an analytical methodology for the evaluation of two important physical layer security metrics in wiretap channels. Specifically, we first introduce the concept and the expression of average secrecy ... -
Cooperative communications scheme with interference management under ICI for OFDM LTE-A systems
Omri A.; Hasna , Mazen ( IEEE Computer Society , 2013 , Conference Paper)In long term evolution (LTE) systems, the achievable cell spectral efficiency is often limited by the inter carrier interference (ICI) or coverage shortage of base stations. Hence, in LTE-Advanced, cooperative communication ... -
Dynamic optimization of LTE pilot scattering based on channel estimation
Omri A.; Hamila R.; Hasna , Mazen; Bouallegue R. ( IEEE , 2012 , Conference Paper)A dynamic optimization of the pilot scattering for Long Term Evolution (LTE) downlink system is introduced. This optimization is based on channel parameters estimations to optimize the number of pilots used in the transmission ... -
Effective area spectral efficiency for wireless communication networks with interference management
Omri A.; Hasna , Mazen; Nafie M. ( Springer International Publishing , 2015 , Article)In this paper, we introduce a new metric, namely, effective area spectral efficiency (EASE), to quantify the spectral efficiency as well as the spatial properties of point-to-point transmission systems and decode and forward ... -
Effective area spectral efficiency metric for decode-and-forward cooperative wireless communications
Omri A.; Hasna , Mazen; Nafie M. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, we introduce a new metric, namely: effective area spectral efficiency (EASE), to quantify the spectral efficiency as well as the spatial properties of decoding and forward (DF) relaying wireless communications ... -
Enhanced Alamouti decoding scheme for DVB-T2 systems in SFN channels
Omri, A.; Hamila, R.; Hazmi, A.; Bouallegue, R.; Al-Dweik, A. ( IEEE , 2011 , Conference Paper)The standard Alamouti space-frequency block code (SFBC) suffers from performance degradation when used over highly frequency-selective channels because the channel frequency response is not necessarily flat over the Alamouti ... -
Enhancing wireless networks performance through cooperative communications with interference management
Omri A.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)Cooperative radio communication has been proposed as an efficient technique to extend coverage and improve throughput in future wireless networks. However, its performance gain is degraded in the presence of co-channel ... -
Estimation of highly selective channels for downlink LTE system by a robust neural network
Omri, A.; Hamila, R.; Hasna, M.; Bouallegue, R.; Chaieb, H. ( IEEE , 2010 , Conference Paper)In this paper we propose a robust channel estimator for Long Term Evolution (LTE) downlink highly selective using neural network. This method uses the information provided by the reference signals to estimate the total ... -
Inter-relay interference cancellation for wireless multi-user multi-decode-and-forward relay networks
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, a cooperative communication scheme with inter-relay interference (IRI) cancellation is proposed for wireless multi-user multi-decode-and-forward (DF) relay networks. The scheme is based on a DF half-duplex ... -
Inter-relay Interference management schemes for multi-user cooperative wireless networks
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)In this paper, two cooperative communications schemes with inter-relay interference (IRI) management are proposed for multi-user wireless networks. The first scheme (Interference management at relay station (IMR)) uses the ... -
Inter-relay interference management schemes for wireless multi-user decode-and-forward relay networks
Omri A.; Hasna , Mazen; Letaief K.B. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)In this paper, two cooperative communications schemes with inter-relay interference (IRI) management are proposed for wireless multi-user decode-and-forward (DF) relay networks. The schemes are based on a DF half-duplex ... -
Interference management schemes with general order statistics and interference constraint for multi-user cooperative wireless networks
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)In this paper, two cooperative communications schemes with interference management are proposed for multiuser wireless networks. The first scheme (Interference Constraint based Relay Selection (ICRS)) maximizes the received ... -
Joint Optimization of Area Spectral Efficiency and Delay over PPP Interfered Ad-Hoc Networks
Chun Y.J.; Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)To evaluate the performance of the co-channel transmission based communication, we propose a new metric for area spectral efficiency (ASE) of interference limited ad-hoc network by assuming that the nodes are randomly ... -
Modified Alamouti decoding for highly selective channels for LTE systems
Omri A.; Hamila R.; Hasna , Mazen; Bouallegue R. ( IEEE , 2012 , Conference Paper)In this contribution, we propose an improvement of Alamouti coding for equalization of space-time block code multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) over highly-selective ... -
Novel cooperative communication schemes with interference management for multi-user wireless networks
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)Cooperative communication is a promising technique for future wireless networks. It can be used in improving communication reliability, and enhancing power and spectrum efficiency. However, its performance gain degrades ... -
On the Average Secrecy Outage Rate and Average Secrecy Outage Duration of Wiretap Channels with Rician Fading
Abughalwa M.; Omri A.; Hasna M.O. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In this paper, we study important physical layer security metrics over wiretap channels with Rician fading. We derive the average secrecy outage rate (ASOR) expression to quantify the average secrecy zero level crossing ... -
Optimal power consumption based on new power spectral efficiency metric for wireless cellular networks
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, we introduce a new power spectral efficiency (PSE) metric, to quantify the spectral efficiency and the total required power to cover a certain area with a predefined received signal quality. This metric ... -
Performance analysis of cooperative communication system with feedback delay and channel estimation error
Omri A.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, we investigate the impact of feedback delay and channel estimation error (CEE) on the performance of wireless multi-user decode-and-forward (DF) relay systems in independent and non identically distributed ...