Qatar Mobility Innovations Center: Recent submissions

Now showing items 161-180 of 219

    • Delay-sensitive content distribution via peer-to-peer collaboration in public safety vehicular ad-hoc networks 

      Atat, Rachad; Yaacoub, Elias; Alouini, Mohamed-Slim; Filali, Fethi; Abu-Dayya, Adnan ( Elsevier , 2014 , Article)
      Delay-sensitive content distribution with peer-to-peer (P2P) cooperation in public safety vehicular networks is investigated. Two cooperative schemes are presented and analyzed. The first scheme is based on unicasting from ...

    • Mobile relays for enhanced broadband connectivity in high speed train systems 

      Yaacoub, Elias; Atat, Rachad; Alsharoa, Ahmad; Alouini, Mohamed-Slim ( Elsevier , 2014 , Article)
      With the introduction of wireless modems and smart phones, the passenger transport industry is witnessing a high demand to ensure not only the safety of the trains, but also to provide users with Internet access all the ...

    • Automatic meter reading in the smart grid using contention based random access over the free cellular spectrum 

      Elias, Yaacoub; Abu-Dayya, Adnan ( Elsevier , 2014 , Article)
      Real-time transmission of smart meter measurement data is investigated. A contention based approach exploiting the unused cellular spectrum, e.g. of 4G Long Term Evolution (LTE), is proposed. The proposed approach uses ...

    • Joint energy-distortion aware algorithms for cooperative video streaming over LTE networks 

      Elias, Yaacoub; Dawy, Zaher; Sharafeddine, Sanaa; Abu-Dayya, Adnan ( Elsevier , 2013 , Article)
      Real-time video streaming over long-term evolution (LTE) networks is investigated in the presence of mobile-to-mobile collaboration. A multi-objective problem for energy and distortion minimization is formulated and an ...

    • Realistic simulation for body area and body-to-body networks 

      Alam, Muhammad Mahtab; Ben Hamida, Elyes; Ben Arbia, Dhafer; Maman, Mickael; Mani, Francesco; ... more authors ( MDPI , 2016 , Article)
      In this paper, we present an accurate and realistic simulation for body area networks (BAN) and body-to-body networks (BBN) using deterministic and semi-deterministic approaches. First, in the semi-deterministic approach, ...

    • Enhanced IoT-based end-to-end emergency and disaster relief system 

      Ben Arbia, Dhafer; Alam, Muhammad Mahtab; Kadri, Abdullah; Ben Hamida, Elyes; Attia, Rabah ( MDPI , 2017 , Article)
      In this paper, we present a new enhancement for an emergency and disaster relief system called Critical and Rescue Operations using Wearable Wireless sensors networks (CROW2). We address the reliability challenges in setting ...

    • Research trends in multi-standard device-to-device communication in wearable wireless networks 

      Alam, Muhammad Mahtab; Ben Arbia, Dhafer; Hamida, Elyes Ben ( Springer Verlag , 2015 , Conference Paper)
      Wearable Wireless Networks (WWN) aim to provide attractive alternate for conventional medical care system. It is an effective way of monitoring patients within clinics, hospitals and remotely from home, offices etc. In ...

    • A novel Cloudlet-based communication framework for resource-constrained devices 

      Ben Lazreg, Amel; Ben Arbia, Anis; Ben Arbia, Dhafer; Youssef, Habib ( Association for Computing Machinery , 2018 , Conference Paper)
      In this paper, we present a new emerging technology for building mobility-enhanced and small-scaled mobile to cloud applications called Cloudlet. We address the reliability challenges in affording a powerful computing ...

    • Security of cooperative intelligent transport systems: Standards, threats analysis and cryptographic countermeasures 

      Ben Hamida, Elyes; Noura, Hassan; Znaidi, Wassim ( MDPI , 2015 , Article)
      Due to the growing number of vehicles on the roads worldwide, road traffic accidents are currently recognized as a major public safety problem. In this context, connected vehicles are considered as the key enabling technology ...

    • Security in intelligent transport systems for smart cities: From theory to practice 

      Javed, Muhammad Awais; Ben Hamida, Elyes; Znaidi, Wassim ( MDPI , 2016 , Article)
      Connecting vehicles securely and reliably is pivotal to the implementation of next generation ITS applications of smart cities. With continuously growing security threats, vehicles could be exposed to a number of service ...

    • QoS-Aware Video Transmission over Hybrid Wireless Network for Connected Vehicles 

      Ben Brahim, Mohamed; Hameed Mir, Zeeshan; Znaidi, Wassim; Filali, Fethi; Hamdi, Noureddine ( IEEE , 2017 , Article)
      Communication between vehicles enables a wide array of applications and services ranging from road safety to traffic management and infotainment. Each application places distinct quality of service (QoS) constraints on the ...

    • Efficient Distributed Admission and Revocation Using Blockchain for Cooperative ITS 

      Lasla, Noureddine; Younis, Mohamed; Znaidi, Wassim; Ben Arbia, Dhafer ( IEEE , 2018 , Conference Paper)
      Cooperative Intelligent Transportation System (C- ITS) enables inter-networking of vehicles for alerts exchanging in order to improve road safety. While this technology is about to enter the market in the upcoming years, ...

    • Opportunistic cooperation for infrastructure-to-relaying-vehicles over LTE-A networks 

      Feteiha, Mohamed F.; Hassanein, Hossam S.; Kubbar, Osama ( IEEE , 2013 , Conference Paper)
      We extend vehicular cooperation into downlink LTE-A networks in what we call Infrastructure-to-Relaying-Vehicles (I2RV) cooperation. In I2RV, vehicles are used as relaying terminals between eNodeB/BS and a receiving user ...

    • Energy-efficient Device-to-Device communications in LTE public safety networks 

      Yaacoub, Elias; Kubbar, Osama ( IEEE , 2012 , Conference Paper)
      Device-to-Device communications are studied in the framework of LTE public safety networks. We propose a model where devices cooperate on the short range by forming coalitions for the purpose of energy efficiency. In each ...

    • An advanced bandwidth adaptation mechanism for LTE systems 

      Khabazian, Mehdi; Kubbar, Osama; Hassanein, Hossam ( IEEE , 2013 , Conference Paper)
      In this paper, we propose a bandwidth adaptation mechanism for 3GPP LTE which partially releases bearers' resources for admission of a new bearer during congestion periods. Each active bearer may contribute into the ...

    • Quality of experience for spatial cognitive systems within multiple antenna scenarios 

      Imran, Reema; Odeh, Maha; Zorba, Nizar; Verikoukis, Christos ( IEEE , 2013 , Article)
      Multiple Input Multiple Output (MIMO) adds a new dimension, the spatial one, to be optimized in Cognitive Radio (CR) by offering service simultaneously to more than one user. In this paper, statistical optimization techniques ...

    • Power consumption in spatial cognition 

      Odeh, Maha; Zorba, Nizar; Verikoukis, Christos ( wiley , 2013 , Article)
      Multiple input multiple output adds a new dimension to be exploited in cognitive radio by simultaneously serving several users. The spatial domain that is added through multiple input multiple output is another system ...

    • Energy optimization in multiuser quantized feedback systems 

      Althunibat, Saud; Zorba, Nizar; Granelli, Fabrizio; Verikoukis, Christos ( Springer Nature , 2013 , Article)
      This article explores the effects of quantization of feedback information on energy consumption in multiuser wireless communication systems. In order to optimize the energy consumption of the system, the article concentrates ...

    • A novel energy saving MIMO mechanism in LTE systems 

      Imran, Reema; Shukair, Mutaz; Zorba, Nizar; Kubbar, Osama; Verikoukis, Christos ( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)
      Long Term Evolution (LTE) supports closed-loop MIMO techniques to improve its performance, but in order to exploit multiuser MIMO channel capabilities, the design of an efficient MAC scheme that supports Multiuser MIMO is ...

    • Can dynamic pricing make femto users and service providers happy? 

      Khabazian, Mehdi; Zorba, Nizar; Hassanein, Hossam S. ( IEEE Computer Society , 2013 , Conference Paper)
      Femtocell is a promising technology that will improve wireless resources efficiency through frequency spatial reuse however, its integration with the current cellular systems has been considered a fundamental challenge. ...