Now showing items 1-20 of 40

  • A cluster head decision system for sensor networks using fuzzy logic and number of neighbor nodes 

    Anno, Junpei; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network’s communication energy dissipation. However, the selection of cluster head is not ...
  • A cluster head selection method for wireless sensor networks based on fuzzy logic 

    Anno, Junpei; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    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 ...
  • A comparison study of two fuzzy-based handover systems for avoiding ping-pong effect in Wireless Cellular Networks 

    Mino, Gjergji; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Wireless mobile networks and devices are becoming increasingly popular to provide users the access anytime and anywhere. The mobile systems are based on cellular approach and the area is covered by cells that overlap each ...
  • A distributed QoS Routing and CAC framework: performance evaluation of its SSRA and InterD Agents 

    Barolli, Leonard; Ikeda, Makoto; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    In order to support multimedia communication, it is necessary to develop routing algorithms which use for routing more than one QoS parameters. This is because new services such as video on demand and remote meeting systems ...
  • A fuzzy-based CAC scheme for wireless cellular networks considering different priorities 

    Ikebata, Taku; Mino, Gjergji; Barolli, Leonard; Koyama, Akio; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is ...
  • A fuzzy based call admission control scheme for wireless cellular networks considering priority of on-going connections 

    Mino, Gjergji; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service (QoS).But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is ...
  • A fuzzy-based call admission control system for wireless cellular networks 

    Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    The mobile cellular systems are expected to support multiple services with guaranteed quality of service (QoS). However, the ability of wireless systems to accommodate expected growth of traffic load and broadband services ...
  • A fuzzy-based handover system for avoiding ping-pong effect in wireless cellular networks 

    Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    Open Access
    Many handover algorithms are proposed in the literature. However, to make a better handover and keep the QoS in wireless networks is very difficult. In this paper, we propose a new handover system based on fuzzy logic. The ...
  • An intelligent fuzzy-based cluster head selection system for wireless sensor networks and its performance evaluation 

    Ando, Hironori; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    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 ...
  • An intelligent fuzzy-based cluster head selection system for WSNs and its performance evaluation for D3N parameter 

    Ando, Hironori; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network's communication energy dissipation. However, selecting of the cluster head is not ...
  • An intelligent handoff system for wireless cellular networks using fuzzy logic and random walk model 

    Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    Open Access
    In mobile cellular systems the handover is a very important process to maintain the desired Quality of Service (QoS). Many handover algorithms are proposed in the literature. However, to make a better handover and keep the ...
  • A simulation system for routing efficiency in wireless sensor-actor networks: a case study for semi-automated architecture 

    Barolli, Leonard; Yang, Tao; Ikeda, Makoto; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Conference report
    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 ...
  • A simulation system for WSNs as a digital eco-system approach considering goodput metric 

    Barolli, Leonard; Yang, Tao; Mino, Gjergji; 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 ...
  • Design and implementation of a JXTA-Overlay P2P system and smart box environment 

    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
    In this paper, we present the design and implementation of the JXTA-based e-Learning P2P system. We also show the design and implementation of a smart box environment that will be used for stimulating the learners to ...
  • Experimental evaluation of a MANET testbed in indoor stairs scenarios 

    Hiyama, Masahiro; Ikeda, Makoto; Barolli, Leonard; Kulla, Elis; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In recent years, Mobile Ad hoc Networks (MANETs) are continuing to attract the attention for their potential use in several fields. Mobility and the absence of any fixed infrastructure make MANETs very attractive for ...
  • Experimental results and evaluation of SmartBox stimulation device in a P2P e-learning system 

    Matsuo, Keita; Barolli, Leonard; Arnedo Moreno, Joan; Xhafa Xhafa, Fatos; Koyama, Akio; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    In this paper, we present the experimental results and evaluation of the SmartBox stimulation device in P2P e-learning system which is based on JXTA-Overlay. We also show the design and implementation of the SmartBox ...
  • Immediate mode scheduling of independent jobs in computational grids 

    Xhafa Xhafa, Fatos; Barolli, Leonard; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    With the emerging paradigm of grid computing and the development of grid infrastructures, grid-based applications are becoming a common approach for solving many complex, large-scale problems in science and engineering. ...
  • Impact of mobile event movement on the performance of wireless sensor networks 

    Yang, Tao; Barolli, Leonard; Mino, Gjergji; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this paper, we investigate how the sensor network performs in the case when the event moves with special movement path. We compare the simulation results for four scenarios: when the event is stationary, moving randomly, ...
  • Impact of mobile sink for wireless sensor networks considering different radio models and performance metrics 

    Yang, Tao; Mino, Gjergji; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    In this work, we investigate how WSN performs in the case when sink node moves using different radio models and metrics. We consider routing efficiency, delay and number of received packet metrics to evaluate the performance ...
  • Impact of mobile sink for wireless sensor networks considering goodput and routing efficiency metrics 

    Yang, Tao; 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 ...