Institute for Informatics and Telematics

Displaying 1-9 of 9 results

  • White Papers // Sep 2011

    Performance Analysis of 802.11-Based Internet Access for Highways With Multiclass Traffic Flows

    Several vehicular applications rely on Vehicle-To-Infrastructure (V2I) communications. So far, most existing work focused on analyzing the performance of V2I communications when very few vehicles are involved. However, as the market penetration rate of cars equipped with wireless communication devices increases, it is reasonable to envisage that packet collisions due...

    Provided By Institute for Informatics and Telematics

  • White Papers // Aug 2011

    TALB: A Traffic-Aware Load Balancer for Throughput Improvement in Wireless Mesh Networks

    In this paper, the authors design, implement and evaluate a practical flow-based routing architecture for WMNs, called TALB, which exploits traffic measurements to balance traffic load over available mesh paths and gateways. To achieve throughput enhancements while mitigating inter-flow interference, TALB implements a Constrained Maximal Bottleneck Path computation algorithm to...

    Provided By Institute for Informatics and Telematics

  • White Papers // Apr 2011

    Throughput and Fairness Analysis of 802.11-Based Vehicle-to-Infrastructure Data Transfers

    The performance of vehicular Internet access using roadside 802.11-based APs has been extensively studied in the literature. However, much less attention has been dedicated to analyzing the maximum achievable throughput when multiple vehicles simultaneously share the bandwidth of the same roadside AP in a given mobility scenario. To fill such...

    Provided By Institute for Informatics and Telematics

  • White Papers // Sep 2010

    Opportunistic Packet Scheduling and Routing in Wireless Mesh Networks

    Opportunistic routing has emerged as a promising approach to cope with unreliable and unpredictable wireless links in static multi-hop wireless networks. Most existing opportunistic schemes force strict timing between the potential forwarders in order to reduce the number of redundant packet copies generated during the forwarding process. Alternative opportunistic schemes...

    Provided By Institute for Informatics and Telematics

  • White Papers // Jun 2010

    Automatically Configured, Optimised and QoS Aware Wireless Mesh Networks

    Wireless Mesh Networks (WMNs) are comprised of nodes with multiple radio interfaces and provide broadband residential internet access or connectivity to temporal events. The goal is to simplify the network deployment of such a mesh network, and towards that authors are presenting procedures for automatic configuration and optimisation of the...

    Provided By Institute for Informatics and Telematics

  • White Papers // Apr 2010

    Load-Balanced Routing and Gateway Selection in Wireless Mesh Networks: Design, Implementation and Experimentation

    Traffic routing and gateway selection for Internet flows play a crucial role in determining the performance of WMNs. Optimal routing strategies have been derived under the assumption that the traffic demands are static and known a priori, or that can be accurately predicted. However, the effectiveness of most of the...

    Provided By Institute for Informatics and Telematics

  • White Papers // Aug 2009

    Capacity-Aware Routing in Heterogeneous Mesh Networks: An Analytical Approach

    In Wireless Mesh Networks (WMNs), gateway nodes may become a severe bottleneck for Internet flows. Indeed, if traffic is routed in the mesh without considering traffic distribution, as well as link capacities, some gateways or intermediate mesh routers may rapidly get overloaded due to unevenly utilization of network resources. To...

    Provided By Institute for Informatics and Telematics

  • White Papers // Feb 2009

    Latency and Capacity Optimal Broadcasting in Wireless Multihop Networks

    This paper studies the fundamental properties of broadcasting in multi-hop wireless networks. Previous studies have shown that, as long as broadcast capacity is concerned, asymptotically optimal broadcasting is possible in wireless multihop networks under very general conditions. However, none of the existing work on broadcast capacity has considered latency in...

    Provided By Institute for Informatics and Telematics

  • White Papers // Jan 2009

    A Queuing Modeling Approach for Load-Aware Route Selection in Heterogenous Mesh Networks

    Wireless mesh networks are primarily used to provide Internet access by sharing the Internet connections of a limited number of gateways. If traffic is routed in the mesh without considering load distributions, unevenly network congestion may arise, or some gateways may rapidly get overloaded because are selected by too many...

    Provided By Institute for Informatics and Telematics

  • White Papers // Feb 2009

    Latency and Capacity Optimal Broadcasting in Wireless Multihop Networks

    This paper studies the fundamental properties of broadcasting in multi-hop wireless networks. Previous studies have shown that, as long as broadcast capacity is concerned, asymptotically optimal broadcasting is possible in wireless multihop networks under very general conditions. However, none of the existing work on broadcast capacity has considered latency in...

    Provided By Institute for Informatics and Telematics

  • White Papers // Jun 2010

    Automatically Configured, Optimised and QoS Aware Wireless Mesh Networks

    Wireless Mesh Networks (WMNs) are comprised of nodes with multiple radio interfaces and provide broadband residential internet access or connectivity to temporal events. The goal is to simplify the network deployment of such a mesh network, and towards that authors are presenting procedures for automatic configuration and optimisation of the...

    Provided By Institute for Informatics and Telematics

  • White Papers // Aug 2009

    Capacity-Aware Routing in Heterogeneous Mesh Networks: An Analytical Approach

    In Wireless Mesh Networks (WMNs), gateway nodes may become a severe bottleneck for Internet flows. Indeed, if traffic is routed in the mesh without considering traffic distribution, as well as link capacities, some gateways or intermediate mesh routers may rapidly get overloaded due to unevenly utilization of network resources. To...

    Provided By Institute for Informatics and Telematics

  • White Papers // Apr 2010

    Load-Balanced Routing and Gateway Selection in Wireless Mesh Networks: Design, Implementation and Experimentation

    Traffic routing and gateway selection for Internet flows play a crucial role in determining the performance of WMNs. Optimal routing strategies have been derived under the assumption that the traffic demands are static and known a priori, or that can be accurately predicted. However, the effectiveness of most of the...

    Provided By Institute for Informatics and Telematics

  • White Papers // Apr 2011

    Throughput and Fairness Analysis of 802.11-Based Vehicle-to-Infrastructure Data Transfers

    The performance of vehicular Internet access using roadside 802.11-based APs has been extensively studied in the literature. However, much less attention has been dedicated to analyzing the maximum achievable throughput when multiple vehicles simultaneously share the bandwidth of the same roadside AP in a given mobility scenario. To fill such...

    Provided By Institute for Informatics and Telematics

  • White Papers // Sep 2011

    Performance Analysis of 802.11-Based Internet Access for Highways With Multiclass Traffic Flows

    Several vehicular applications rely on Vehicle-To-Infrastructure (V2I) communications. So far, most existing work focused on analyzing the performance of V2I communications when very few vehicles are involved. However, as the market penetration rate of cars equipped with wireless communication devices increases, it is reasonable to envisage that packet collisions due...

    Provided By Institute for Informatics and Telematics

  • White Papers // Sep 2010

    Opportunistic Packet Scheduling and Routing in Wireless Mesh Networks

    Opportunistic routing has emerged as a promising approach to cope with unreliable and unpredictable wireless links in static multi-hop wireless networks. Most existing opportunistic schemes force strict timing between the potential forwarders in order to reduce the number of redundant packet copies generated during the forwarding process. Alternative opportunistic schemes...

    Provided By Institute for Informatics and Telematics

  • White Papers // Jan 2009

    A Queuing Modeling Approach for Load-Aware Route Selection in Heterogenous Mesh Networks

    Wireless mesh networks are primarily used to provide Internet access by sharing the Internet connections of a limited number of gateways. If traffic is routed in the mesh without considering load distributions, unevenly network congestion may arise, or some gateways may rapidly get overloaded because are selected by too many...

    Provided By Institute for Informatics and Telematics

  • White Papers // Aug 2011

    TALB: A Traffic-Aware Load Balancer for Throughput Improvement in Wireless Mesh Networks

    In this paper, the authors design, implement and evaluate a practical flow-based routing architecture for WMNs, called TALB, which exploits traffic measurements to balance traffic load over available mesh paths and gateways. To achieve throughput enhancements while mitigating inter-flow interference, TALB implements a Constrained Maximal Bottleneck Path computation algorithm to...

    Provided By Institute for Informatics and Telematics