Now showing items 21-40 of 40

  • Implementation and design of new functions for a web-based E-Learning system to stimulate learners motivation 

    Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos; Koyama, Akio; Durresi, Arjan; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    Open Access
    Due to the opportunities provided by the Internet, people are taking advantage of e-learning courses and during the last few years enormous research efforts have been dedicated to the development of e-learning systems. So ...
  • Implementation and performance evaluation of two fuzzy-based handover systems for wireless cellular networks 

    Mino, Gjergji; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (HINDAWI, 2009)
    Article
    Open Access
    Wireless mobile networks and devices are becoming increasingly popular to provide users the access anytime and anywhere. We are witnessing now an unprecedented demand for wireless networks to support both data and real-time ...
  • Implementation of an e-learning system using P2P, web and sensor technologies 

    Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos; Kolici, Vladi; Koyama, Akio; Durresi, Arjan; Miho, Rozeta (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    This work is motivated by the need to develop decentralized P2P approaches to support learning and teaching activity in virtual universities. In this paper, we present the implementation of the JXTA-based e-learning P2P ...
  • Improvement and performance evaluation of CAVENET: a network simulation tool for vehicular networks 

    Barolli, Leonard; Mino, Gjergji; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Vehicle Ad-hoc Network (VANET) is a kind of Mobile Ad-hoc Network (MANET) that establishes wireless connection between cars. In VANETs and MANETs, the topology of the network changes very often, therefore implementation ...
  • Mobility effects of wireless multi-hop networks in indoor scenarios 

    Ikeda, Makoto; Hiyama, Masahiro; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    A Mobile Ad hoc Network (MANET) is a collection of wireless mobile terminals that are able to dynamically form a temporary network without any aid from fixed infrastructure or centralized administration. In recent years, ...
  • Mobility effects on the performance of mobile ad hoc networks 

    Ikeda, Makoto; Hiyama, Masahiro; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this paper, we present the implementation and analysis of our implemented testbed considering the Optimized Link State Routing (OLSR) protocol for Mobile Ad hoc Networks (MANET). We investigate the effect of mobility ...
  • MPLS traffic engineering in satellite networks 

    Durresi, Arjan; Durresi, Mimoza; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    Broadband satellite constellation networks will be required to carry all types of IP traffic, real time interactive traffic as well as non-real time traffic, warranting the need for appropriate QoS for these different ...
  • Network energy consumption in ad-hoc networks under different radio models 

    Yang, Tao; Barolli, Leonard; Ikeda, Makoto; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    In this work, we consider the behavior of a wireless ad- hoc network under TwoRayGround and Shadowing radio models. By means of simulations, we analyze the performance of three routing protocols: AODV, DSR, and DSDV, and ...
  • Performance analysis of OLSR and BATMAN protocols considering link quality parameter 

    Barolli, Leonard; Ikeda, Makoto; De Marco, Giuseppe; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    In this paper, we present the implementation and analysis of our testbed considering the link quality window size (LQWS) parameter of optimized link state routing (OLSR) and better approach to mobile ad-hoc networking ...
  • Performance analysis of OLSR protocol for wireless sensor networks and comparison evaluation with AODV protocol 

    Yang, Tao; Barolli, Leonard; Ikeda, Makoto; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves ...
  • Performance evaluation of two-fuzzy based cluster head selection systems for wireless sensor networks 

    Anno, Junpei; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (2008-01-01)
    Article
    Open Access
    Sensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable ...
  • Performance evaluation of wireless sensor networks for different radio models considering mobile event 

    Yang, Tao; Ikeda, Makoto; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this paper, we consider the behavior of a wireless sensor network for TwoRayGround and Shadowing radio models for the case of mobile event. By means of simulations, we analyse the performance of AODV protocol. In the ...
  • Performance evaluation of wireless sensor networks for mobile event and mobile sink 

    Yang, Tao; Ikeda, Makoto; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (2010-12)
    Article
    Open Access
    Extending lifetime and energy efficiency are important objectives and challenges in-Wireless Sensor Networks (WSNs). In large scale WSNs, when the nodes are near to the sink they consume much more energy than the nodes far ...
  • Performance evaluation of wireless sensor networks for mobile sink considering consumed energy metric 

    Yang, Tao; Ikeda, Makoto; Mino, Gjergji; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves ...
  • Performance evaluation of WSNs for different MAC protocols considering TwoRayGround radio model and AODV Routing Protocol 

    Yang, Tao; Oda, Tetsuya; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Takizawa, Makoto (2012)
    Conference report
    Restricted access - publisher's policy
  • Routing efficiency in wireless sensor-actor networks considering semi-automated architecture 

    Barolli, Leonard; Yang, Tao; Mino, Gjergji; Xhafa Xhafa, Fatos; Durresi, Arjan (2010)
    Article
    Open Access
    Wireless networks have become increasingly popular and advances in wireless communications and electronics have enabled the development of different kind of networks such as Mobile Ad-hoc Networks (MANETs), Wireless Sensor ...
  • Routing efficiency of AODV and DSR protocols in ad-hoc sensor networks 

    Yang, Tao; Ikeda, Makoto; De Marco, Giuseppe; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    Open Access
    In this paper, we consider the performance behavior of two protocols: AODV and DSR using TwoRayGround model. We study the routing efficiency of the ad-hoc sensor network and compare the performance of two protocols for ...
  • Stimulation effects of SmartBox for e-learning using JXTA-overlay P2P system 

    Matsuo, Keita; Barolli, Leonard; Kolici, Vladi; Xhafa Xhafa, Fatos; Koyama, Akio; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    This work is motivated by the need to develop decentralized P2P approaches to support learning and teaching activity in virtual universities.In this paper, we present the stimulation effects of the SmartBox for e-learning ...
  • Tools for performance assessment of OLSR protocol 

    Ikeda, Makoto; Barolli, Leonard; De Marco, Giuseppe; Yang, Tao; Durresi, Arjan; Xhafa Xhafa, Fatos (HINDAWI, 2009-05-28)
    Article
    Open Access
    In this paper, we evaluate the performance of Optimized Link State Routing (OLSR) protocol by experimental and simulation results. The experiments are carried out by using our implemented testbed and the simulations by ...
  • Using a grid platform for enabling real time user modeling in on-line campus 

    Caballé Llobet, Santiago; Xhafa Xhafa, Fatos; Daradoumis, Thanasis; Esteve, Joana; Barolli, Leonard; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    User modelling in on-line distance learning is an important research field focusing on two important aspects: describing and predicting students' actions and intentions as well as adapting the learning process to students' ...