The Experts below are selected from a list of 195 Experts worldwide ranked by ideXlab platform

Joan Garcia-haro - One of the best experts on this subject based on the ideXlab platform.

  • A synchronous Multicast Application for asymmetric intra-campus networks : Definition, analysis and evaluation
    Lecture Notes in Computer Science, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (Synchronous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • ARCS - A synchronous Multicast Application for asymmetric intra-campus networks: definition, analysis and evaluation
    Architecture of Computing Systems - ARCS 2006, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • Networking - Analysis and performance evaluation of a Multicast file transfer solution for congested asymmetric networks
    NETWORKING 2006. Networking Technologies Services and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze a Multicast Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. We also propose a complete Multicast transport protocol involving both, the flow and error correction algorithms. The protocol adapts the window size and the overall Application transfer bitrate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any network router. The Application behavior has been intensively tested by simulation and experimentally in a lab, using a mixture of wired and wireless intra-campus networks. In addition, we develop a mathematical model to validate analytically some of the most important protocol parameters. The methodology employed to define, analyze and evaluate this Multicast protocol is, indeed, another contribution of the work and can be easily extended to other Multicast protocols.

Pilar Manzanares-lopez - One of the best experts on this subject based on the ideXlab platform.

  • A synchronous Multicast Application for asymmetric intra-campus networks : Definition, analysis and evaluation
    Lecture Notes in Computer Science, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (Synchronous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • ARCS - A synchronous Multicast Application for asymmetric intra-campus networks: definition, analysis and evaluation
    Architecture of Computing Systems - ARCS 2006, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • Networking - Analysis and performance evaluation of a Multicast file transfer solution for congested asymmetric networks
    NETWORKING 2006. Networking Technologies Services and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze a Multicast Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. We also propose a complete Multicast transport protocol involving both, the flow and error correction algorithms. The protocol adapts the window size and the overall Application transfer bitrate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any network router. The Application behavior has been intensively tested by simulation and experimentally in a lab, using a mixture of wired and wireless intra-campus networks. In addition, we develop a mathematical model to validate analytically some of the most important protocol parameters. The methodology employed to define, analyze and evaluate this Multicast protocol is, indeed, another contribution of the work and can be easily extended to other Multicast protocols.

Randy H. Katz - One of the best experts on this subject based on the ideXlab platform.

  • an analysis of Multicast forwarding state scalability
    International Conference on Network Protocols, 2000
    Co-Authors: Tina Wong, Randy H. Katz
    Abstract:

    Scalability of Multicast forwarding state is likely to be a major issue facing inter-domain Multicast deployment. We present a comprehensive analysis of the Multicast forwarding state problem. Our goal is to understand the scaling trends of Multicast forwarding state in the Internet, and to explore the intuitions that have motivated state reduction research. We conducted simulation experiments on both real and generated network topologies, with a range of parameters driven by Multicast Application characteristics. We found that the increase in peering among Internet backbone networks has led to more Multicast forwarding state at a handful of core domains, but less state in the rest of the domains. We observed that scalability of Multicast forwarding state with respect to session size follows a power law. Our findings show that distribution and concentration of Multicast forwarding state in the Internet is significantly, impacted by the Application characteristics. We investigated the proposals on non-branching Multicast forwarding state elimination, and found substantial reduction is attainable even with very dense Multicast sessions.

  • Multicast forwarding and Application state scalability in the internet
    2000
    Co-Authors: Tina Han-ting Wong, Randy H. Katz
    Abstract:

    In this dissertation we study and propose solutions to the problem of Multicast state scalability, which arises both at the network-level as forwarding state, and at the Application-level for connection maintenance. First, we present a comprehensive analysis of the forwarding state problem. Our analysis studies the general scaling trends of forwarding state. We conducted detailed simulation experiments on both real and generated network graphs, while varying a range of parameters driven by Multicast Application characteristics. Through a model defined independently of the IP Multicast deployment progress, our results on state are applicable in the future. We describe how to use these results in network provisioning, and Multicast protocol and Application designs. Second, we present a clustering protocol to handle heterogeneous receiver preferences in large-scale Applications. Our protocol follows the end-to-end principle, relying only on simple network primitives, to perform Application-level group formation. Moreover, an Application can tune the specifics of the protocol according to its definition of receiver preference, through the programming interface functions provided. We conducted detail simulation experiments, and found that clustering improves utilization of both network and end-host resources. Finally, we present a policy-driven tunable reliable Multicast protocol, targeted specifically at periodic content delivery. This protocol is not constrained to guarantee eventual delivery of all data, but instead considers user interest and suppresses unnecessary retransmission requests from receivers. The advantage is we reduce feedback implosion, most critical to wireless environments with limited uplink bandwidths, contentious access channels, and power constrained terminals. Our results prove that the protocol out-performs other reliability schemes by several factors, even at high loss rates and large session sizes. At the same time, it also fulfills Application requirements. Together, these three contributions of the dissertation from the bases of a solution to the Multicast network and Application state scalability problem. (Abstract shortened by UMI.)

Josemaria Malgosa-sanahuja - One of the best experts on this subject based on the ideXlab platform.

  • A synchronous Multicast Application for asymmetric intra-campus networks : Definition, analysis and evaluation
    Lecture Notes in Computer Science, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (Synchronous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • ARCS - A synchronous Multicast Application for asymmetric intra-campus networks: definition, analysis and evaluation
    Architecture of Computing Systems - ARCS 2006, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • Networking - Analysis and performance evaluation of a Multicast file transfer solution for congested asymmetric networks
    NETWORKING 2006. Networking Technologies Services and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze a Multicast Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. We also propose a complete Multicast transport protocol involving both, the flow and error correction algorithms. The protocol adapts the window size and the overall Application transfer bitrate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any network router. The Application behavior has been intensively tested by simulation and experimentally in a lab, using a mixture of wired and wireless intra-campus networks. In addition, we develop a mathematical model to validate analytically some of the most important protocol parameters. The methodology employed to define, analyze and evaluate this Multicast protocol is, indeed, another contribution of the work and can be easily extended to other Multicast protocols.

Juan Carlos Sanchez-aarnoutse - One of the best experts on this subject based on the ideXlab platform.

  • A synchronous Multicast Application for asymmetric intra-campus networks : Definition, analysis and evaluation
    Lecture Notes in Computer Science, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (Synchronous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • ARCS - A synchronous Multicast Application for asymmetric intra-campus networks: definition, analysis and evaluation
    Architecture of Computing Systems - ARCS 2006, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze an Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. Since TCP cannot be used in Multicast situations, we also propose a transport protocol involving a flow control algorithm. This algorithm adapts the protocol window size and the overall Application transfer rate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any router. The protocol behavior has been intensively tested in a lab, using a mixture of wired and wireless networks. The paper also explains how to capture and post-process SOMA network traffic. In addition, we develop a mathematical model to validate the most important protocol parameters. The methodology employed to define, analyze and evaluate this protocol is, indeed, another contribution and can be easily extended to other Multicast protocols.

  • Networking - Analysis and performance evaluation of a Multicast file transfer solution for congested asymmetric networks
    NETWORKING 2006. Networking Technologies Services and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication, 2006
    Co-Authors: Pilar Manzanares-lopez, Juan Carlos Sanchez-aarnoutse, Josemaria Malgosa-sanahuja, Joan Garcia-haro
    Abstract:

    In this paper, we propose and analyze a Multicast Application called SOMA (SynchrOnous Multicast Application) which offers Multicast file transfer service in an asymmetric intra-campus environment. For efficient bandwidth utilization, SOMA uses IP Multicasting. We also propose a complete Multicast transport protocol involving both, the flow and error correction algorithms. The protocol adapts the window size and the overall Application transfer bitrate to the minimum network capacity, allowing synchronism and reacting quickly when congestion arises at any network router. The Application behavior has been intensively tested by simulation and experimentally in a lab, using a mixture of wired and wireless intra-campus networks. In addition, we develop a mathematical model to validate analytically some of the most important protocol parameters. The methodology employed to define, analyze and evaluate this Multicast protocol is, indeed, another contribution of the work and can be easily extended to other Multicast protocols.