• A Novel Downlink IM-NOMA Scheme 

      Almohamad A.; Hasna , Mazen; Althunibat S.; Qaraqe K. ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      In the next generations of communication systems, resources' scarcity devolves to a more critical point as a consequence of the expected massive number of users to be served. Furthermore, the users' contradicting requirements ...
    • A Secrecy Study of UAV Based Networks with Fountain Codes and FD Jamming 

      Abughalwa M.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      Securing wireless communication using different techniques has been an interesting topic for research, especially with the increasing demand on fast and secure transmission. In this research, we conduct a performance ...
    • Analysis and quality of service evaluation of a fast charging station for electric vehicles 

      Zenginis, Ioannis; Vardakas, John S.; Zorba, Nizar; Verikoukis, Christos V. ( Elsevier Ltd , 2016 , Article)
      Electrification of transportation is considered as one of the most promising ways to mitigate climate change and reduce national security risks from oil and gasoline imports. Fast charging stations that provide high quality ...
    • Cooperative cognitive relaying under primary and secondary quality of service satisfaction 

      El Shafie, Ahmed; Khattab, Tamer ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)
      This paper proposes a new cooperative protocol which involves cooperation between primary and secondary users. We consider a cognitive setting with one primary user (PU) and multIPle secondary users (SUs). The time resource ...
    • Delay analysis of converged optical-wireless networks with quality of service support 

      Vardakas, John S.; Moscholios, Ioannis D.; Zorba, Nizar; Logothetis, Michael D.; Verikoukis, Christos V. ( Institution of Engineering and Technology , 2014 , Article)
      The convergence of two popular access technologies, namely Worldwide interoperability for Microwave Access (WiMAX) and passive optical network (PON) is a promising access solution that combines the mobility feature of WiMAX ...
    • Energy optimization for bidirectional multimedia communication in unsynchronized TDD systems 

      Zorba, Nizar; Verikoukis, Christos ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)
      Energy efficiency is one of the main system resources that has to be optimally allocated, due to its impact on the amount of generated interference and the battery life for multimedia communication. In this paper, we ...
    • Feasibility and performance evaluation of a 6LoWPAN-enabled platform for ubiquitous healthcare monitoring 

      Touati, Farid; Ben Mnaouer, Adel; Erdene-Ochir, Ochirkhand; Mehmood, Waiser; Hassan, Ammad; ... more authors ( John Wiley and Sons Ltd , 2016 , Article)
      Technology has revolutionized medical practices by enabling more convenient and non-intrusive monitoring of patient's health, leading to next generation ubiquitous healthcare (u-healthcare). The exploitation of the Internet ...
    • Modeling and analysis of an infrastructure service request queue in multichannel V2I communications 

      Khabbaz M.; Hasna , Mazen; Assi C.M.; Ghrayeb A. ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Article)
      This paper presents a concise yet comprehensive description of a multichannel vehicle-to-infrastructure communication system. Existing mathematical models for such a system overlook some of its essential behavioral ...
    • Multi-Symbol Rate NOMA for Improving Connectivity in 6G Communications Networks 

      Al-Dweik, Arafat; Alsusa, Emad; Dobre, Octavia A.; Hamila, Ridha ( IEEE , 2024 , Article)
      In non-orthogonal multiple access (NOMA), user pairing, power allocation, and performance evaluation are typically performed assuming all users have equal symbol rates. However, such an assumption can significantly limit ...
    • On the design of relay-assisted primary-secondary networks 

      Shafie, Ahmed El; Sultan, Ahmed; Khattab, Tamer; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      The use of N cognitive relays to assist primary and secondary transmissions in a time-slotted cognitive setting with one primary user (PU) and one secondary user (SU) is investigated. An overlapped spectrum sensing strategy ...
    • On the performance of advanced QoS-aware packet scheduling for multiantenna packet radio systems 

      Nonchev S.; Valkama M.; Hamila R.; Hasna , Mazen ( IEEE , 2010 , Conference Paper)
      In this paper, we study and analyze the performance of advanced OFDM packet scheduling techniques with given QoS requirements under the 3GPP UTRAN Long Term Evolution (L TE) framework. Stemming from our previous studies ...
    • Optimized Load-Scheduling Algorithm for CubeSat's Electric Power System Management Considering Communication Link 

      Hussein, Bayan; Massoud, Ahmed M.; Khattab, Tamer ( IEEE , 2023 , Article)
      CubeSats have been gaining significant interest as a cost-effective solution that can be built with low power requirements for different mission types. The most critical subsystem in CubeSats is the electrical power subsystem ...
    • Performance Analysis of Index Modulation Based Multiple Access under Imperfect Channel Estimation 

      Almohamad A.; Althunibat S.; Qaraqe M.; Mesleh R.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)
      Future generations of wireless communication systems are expected to serve a large number of users with different quality of service requirements. Given the limited spectrum resources, the current multiple access schemes ...
    • Performance analysis of M2M communication networks for QoS-differentiated smart grid applications 

      Vardakas, John S.; Zorba, Nizar; Skianis, Charalabos; Verikoukis, Christos V. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      We study the performance of Machine-to-Machine (M2M) communications in Long Term Evolution Advanced (LTE-A) networks. The proposed analysis is applied to the random access procedure within LTE-A for the calculation of the ...
    • Performance enhancement of cognitive relay networks using regression functions 

      Tourki, Kamel; Hasna, Mazen O. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      In a spectrum sharing relay-aided secondary network, the design objective shifts from minimizing the violation of the primary system constraints when using the outdated channel state information (CSI), to making the best ...
    • Performance enhancement of relay-assisted communications via binary feedback 

      Hasna , Mazen ( IEEE , 2004 , Conference Paper)
      This paper proposes a modified two-hop wireless communication system and studies its performance. The modified system has a reliable feedback channel that carries a binary signal from the receiver to inform the transmitter ...
    • Performance evaluation of a multi-standard fast charging station for electric vehicles 

      Zenginis I.; Vardakas J.; Zorba N.; Verikoukis C. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)
      Electric vehicles (EVs) have been considered as a feasible solution to deal with the high fuel consumption and greenhouse gas emissions caused by conventional vehicles. However, long charging times and drivers' range anxiety ...
    • Priority-based zero-forcing in spectrum sharing cognitive systems 

      Hamdi K.; Hasna , Mazen; Ghrayeb A.; Letaief K.B. ( IEEE , 2013 , Article)
      We consider a spectrum sharing scenario between cognitive radio (CR) users and a licensed primary user (PU), in which the PU is not able to successfully transmit data to its destined receiver. The cognitive base station ...
    • QoE-oriented resource efficiency for 5G two-tier cellular networks: A femtocaching framework 

      Vo, Nguyen Son; Duong, Trung Q.; Guizani, Mohsen ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      Video streaming applications and services (VASs) consume an enormous amount of scarce resources in mobile devices and cellular wireless networks due to the demand for high data rates of video streaming. The limited resource ...
    • Real-time throughput prediction for cognitive Wi-Fi networks 

      Khan M.A.; Hamila R.; Al-Emadi N.A.; Kiranyaz, Mustafa Serkan; Gabbouj M. ( Academic Press , 2020 , Article)
      Wi-Fi as a wireless networking technology has become a widely acceptable commonplace. Over the course of time, the applications landscape of Wi-Fi networks is growing tremendously. The proliferation of new services is ...