Browsing Qatar Mobility Innovations Center by Publisher "IEEE"

Now showing items 1-9 of 9

    • A modified joint uplink-downlink opportunistic scheduling for Quality of Service guarantees 

      Zorba, Nizar; Yaacoub, Elias; El-Hajj, Ahmad M.; Dawy, Zaher ( IEEE , 2013 , Conference Paper)
      Quality of Service (QoS) is a very important metric in wireless communication systems, where both Uplink (UL) and Downlink (DL) connections request strict QoS demands in terms of rate, delay, etc. for their proper operation. ...

    • A new MAC design in LTE for MIMO multiuser schemes 

      Imran, Reema; Zorba, Nizar; Yaacoub, Elias; Hassanein, Hossam S.; Verikoukis, Christos ( IEEE , 2013 , Conference Paper)
      Long Term Evolution (LTE) supports closed-loop Multiple Input Multiple Output (MIMO) techniques, as a mechanism to improve system performance. An open topic since the appearance of MIMO is whether the feedback load, that ...

    • Energy optimization in unsynchronized TDD systems for joint uplink downlink scheduling 

      Zorba, Nizar; Yaacoub, Elias; Verikoukis, Christos ( IEEE , 2013 , Conference Paper)
      Energy is an important resource in wireless communications systems that has to be optimized in order to guarantee low interference in the network as well as efficient use of the available resources. One of the prominent ...

    • Enhanced connectivity in vehicular ad-hoc networks via V2V communications 

      Yaacoub, Elias; Zorba, Nizar ( IEEE , 2013 , Conference Paper)
      Vehicle to vehicle (V2V) communications to enhance the downlink and uplink connectivity in vehicular networks are studied. Effective rate formulations for the uplink and downlink directions are presented and analyzed, while ...

    • Enhancing the quality of experience of video streaming in LTE networks using distributed antenna systems 

      Yaacoub, Elias; Zorba, Nizar ( IEEE , 2013 , Conference Paper)
      Video transmission over long term evolution (LTE) networks is studied. The use of distributed antenna systems (DAS) is proposed to enhance the video quality of experience (QoE). Real time video streaming over both the ...

    • Green operation techniques for large scale deployments of small cell LTE networks 

      Yaacoub, Elias; Zorba, Nizar; Sakarellos, Vasileios K.; Verikoukis, Christos} ( IEEE , 2013 , Conference Paper)
      This paper investigates the large scale deployment of LTE small cell/femtocell networks. The interplay between the different small cell base stations (BSs) is studied in order to achieve the best user performance taking ...

    • Long-term fairness in multi-cell networks using rate predictions 

      Abou-zeid, Hatem; Hassanein, Hossam S.; Zorba, Nizar ( IEEE , 2013 , Conference Paper)
      Providing fair service to users in cellular networks is of significant importance to mobile operators. However, the geographic variability of network coverage and irregularity of user demand in space and time has made ...

    • 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 ...

    • Realization of dual-hop networks in Wi-Fi direct and performance evaluation 

      Khan, Muhammad Asif; Cherif, Wael; Filali, Fethi; Hamila, Ridha ( IEEE , 2017 , Conference Paper)
      Wireless LANs are used as a common choice of Internet access at homes, offices, campuses and public areas such as airports and supermarkets. Wireless LANs support device-to-device (D2D) communication using ad-hoc mode, ...