د. وائل صالح أبوغريس هو احد اعضاء هيئة التدريس بقسم بقسم الهندسة الكهربائية والإلكترونية بكلية الهندسة. يعمل د. وائل صالح أبوغريس بجامعة طرابلس كأستأذ مساعد منذ 5 مارس 2017 وله العديد من المنشورات العلمية في مجال تخصصه.

منشورات مختارة

بعض المنشورات التي تم نشرها في قسم الهندسة الكهربائية والالكترونية

Modeling and Design of Reconfigurable Multi-Band Frequency Selective Surface

In this paper, we have proposed a reconfigurable multiband cell frequency selective surface with high selective frequency performance. A single layer ring loop, square loop and cross dipole elements with four switch form the reconfigurable multiband frequency selective surface (RFSS) unit cell proposed in this paper. The cross dipole structure is combined with the square loop and ring loop components to provide multi-band function. The proposed structure of RFSS can be used for many applications to pass or reject different frequency bands below 12 GHz. The proposed design is simulated and optimized using commercially available Ansys HFSS software.
Adel Saad Emhemmed, Luojen S Jerbi, Nuredin Ali Ahmed, (5-2021)

Publisher's website

Performance Evaluation of VoIP over Wireless Local Area Network

Abstract Wireless local area networks (WLANs) have been rapidly developed in recent years. It is used for various applications. VoWLAN, which transmits VoIP data over WLANs, shows its amazing attraction and constitutes one of the most flourishing applications nowadays in WLANs. One of Wireless Local Area Networks (WLAN) main drawbacks, when compared to wired networks, is that WLANs are less predictable and efficient. Wireless physical medium is harder to be controlled than physical wire. WLAN medium is also unlicensed, and thus susceptible to interferences produced by other devices. Therefore, great effort is being done in order to obtain Quality of Service (QoS) in real-time voice communications using WLANs. This topic has opened plenty of new research lines to upgrade current WLAN standards. In this thesis, a study is carried out for the behavior of new Medium Access Control (MAC) protocols deﬁned in IEEE 802.11e draft standard Enhanced Distributed coordination function EDCF as well as for its subsequent modified versions. The Adaptive Enhanced Distributed coordination function AEDCF, designed to support QoS when providing voice communication services between stations in WLAN. Also presents experimental results obtained from simulations, and compare our results with simulations made using IEEE 802.11 standard MAC. The simulation work was done using NS-2 simulator, with the addition of speciﬁc modules for 802.11e. A performance comparison is carried out between the modified MAC scheme and IEEE standard MAC scheme, using Experimental simulation models. It is found that the adaptive technique method not only increases the medium utilization ratio and lowers the collision rate by more than 50%, but also enhances vii the overall throughput by around 20% compared with the basic IEEE 802.11DCF technique.
حسين ابراهيم ازويه (2010)

Publisher's website

Comparative Study and Evaluation for Application of Artificial Neural Network and Conventional Controller for Dc-Motor

Abstract The DC motor drives one of the high performance drives that still in competition in industrial application, because of its high performance, robustness, and its lower cost compared with AC motor drives.Due to its majority applications, the separately excited DC motor driver is studied. In order to improve, three independent controller design using classical proportional - integral – derivative, linear quadratic regulator and artificial neural network are considered.The Performance of these controllers has been verified through simulation based on MATLAB/SIMULINK software tools. According to the obtained simulation results, it is found that, an artificial neural network can achieve a better transient and steady state response in comparing to the other two design method. Consequently, the superiority of ANN controller over conventional proportional - integral – derivative is demonstrated this shows the superiority of artificial neural network controller over conventional and linear quadratic regulator controllers.
.زينب إبراهيم علي (2014)

Publisher's website

اطلع على المزيد

إطلاق موقع الجامعة الالكتروني

قسم الهندسة الكهربائية والالكترونية

حول قسم الهندسة الكهربائية والالكترونية

حقائق حول قسم الهندسة الكهربائية والالكترونية

نفتخر بما نقدمه للمجتمع والعالم

المنشورات العلمية

هيئة التدريس

الطلبة

الخريجون

البرامج الدراسية

بكالوريوس - هندسة الاتصالات والالكترونيات

بكالوريوس -

ماجستير - اتصالات

من يعمل بـقسم الهندسة الكهربائية والالكترونية

د. وائل صالح محمد أبوغريس

منشورات مختارة

بعض المنشورات التي تم نشرها في قسم الهندسة الكهربائية والالكترونية

Modeling and Design of Reconfigurable Multi-Band Frequency Selective Surface

Performance Evaluation of VoIP over Wireless Local Area Network

Comparative Study and Evaluation for Application of Artificial Neural Network and Conventional Controller for Dc-Motor