Technische Universitat Braunschweig

Displaying 1-9 of 9 results

  • White Papers // May 2011

    Enhanced Weighted Performance Based Handover Optimization in LTE

    This paper presents an enhanced version of a self-optimizing algorithm that tunes the HandOver (HO) parameters of a LTE (Long-Term Evolution) base station in order to diminish the negative effects that can be introduced by handover (radio link failures, HO failures and ping-pong handovers) and improve the overall network performance....

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2011

    To Switch On or Off : A Simple Case Study on Energy Efficiency in IP-Over-WDM Networks

    In this paper, the authors present a simple case study on energy efficiency in IP-over-WDM networks with dynamic circuit capability and compare two different load adaptive schemes, referred to as switch-on and switch-off. While the switch-off technique was already proposed for energy conservation, the switch-on approach is a new paradigm...

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2011

    A Comparative Performance Analysis of IP Traffic Offloading Schemes Over Dynamic Circuits

    The authors present an novel analytical framework for modeling current IP offloading schemes and show their comparative performance. They analyze relevant parameters, including IP routing re-convergence time, the number of affected IP routes, and the cost of circuit capacity used for offloading. Their results show that emerging offloading solutions based...

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2011

    A Backward-Compatible Inter-Domain Multipath Routing Framework

    The authors present a framework to facilitate the inter-domain multipath routing for carrier networks that are based on circuit switching technologies, without significant changes to the existing inter-domain protocols. They first introduce a simple mechanism, namely, Single Routing Plane Multipath (SRPM) which can be easily implemented in the existing PCE-based...

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2010

    Introducing New Sensors for Activity Recognition

    When introducing a novel sensor to the context recognition community, one of the major challenges is to support reproducibility under similar conditions. In order to get a grasp on this process, the authors divide the context recognition into three subsections: the physical environment and how it is affected by the...

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2010

    IEEE 802.15.4 Packet Analysis With Wireshark and Off-the-Shelf Hardware

    The ability to overhear and analyse packets is essential for the development of protocols for IEEE 802.15.4-based Wireless Sensor Networks. Besides a number of commercial hardware and software offers, only very few projects put effort in developing such solutions. This demonstration shows a simple yet powerful approach to that problem....

    Provided By Technische Universitat Braunschweig

  • White Papers // Apr 2010

    Achieving IP Routing Stability With Optical Bypass

    The phenomenal growth of the Internet coupled with the emergence of new QoS-aware services in the network has put an enormous strain on current networks. Research efforts towards optimizing the performance of IP networks have been focused on increasing the utilization of the network while minimizing additional resources used. Many...

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2010

    Load Balancing for Holding-Time-Aware Dynamic Traffic Grooming

    In this paper, a new algorithm for dynamic traffic grooming is introduced. It considers the holding-time of the connections and it aims at balancing the load among existing lightpaths to avoid the formation of bottlenecks and, consequently, high blocking probability values. Results indicate that it produces significantly lower blocking probabilities...

    Provided By Technische Universitat Braunschweig

  • White Papers // Feb 2010

    Effective Usage of Dynamic Circuits for IP Routing

    The Internet is susceptible to congestion due to progressively increasing traffic as well as short-lived traffic surges. Traditional mechanisms to counter these effects over-provision the IP network to a significant degree. At the same time, the advent of dynamic circuits in L2/L1 networks has fueled the research in the area...

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2010

    IEEE 802.15.4 Packet Analysis With Wireshark and Off-the-Shelf Hardware

    The ability to overhear and analyse packets is essential for the development of protocols for IEEE 802.15.4-based Wireless Sensor Networks. Besides a number of commercial hardware and software offers, only very few projects put effort in developing such solutions. This demonstration shows a simple yet powerful approach to that problem....

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2011

    A Comparative Performance Analysis of IP Traffic Offloading Schemes Over Dynamic Circuits

    The authors present an novel analytical framework for modeling current IP offloading schemes and show their comparative performance. They analyze relevant parameters, including IP routing re-convergence time, the number of affected IP routes, and the cost of circuit capacity used for offloading. Their results show that emerging offloading solutions based...

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2011

    A Backward-Compatible Inter-Domain Multipath Routing Framework

    The authors present a framework to facilitate the inter-domain multipath routing for carrier networks that are based on circuit switching technologies, without significant changes to the existing inter-domain protocols. They first introduce a simple mechanism, namely, Single Routing Plane Multipath (SRPM) which can be easily implemented in the existing PCE-based...

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2011

    To Switch On or Off : A Simple Case Study on Energy Efficiency in IP-Over-WDM Networks

    In this paper, the authors present a simple case study on energy efficiency in IP-over-WDM networks with dynamic circuit capability and compare two different load adaptive schemes, referred to as switch-on and switch-off. While the switch-off technique was already proposed for energy conservation, the switch-on approach is a new paradigm...

    Provided By Technische Universitat Braunschweig

  • White Papers // Apr 2010

    Achieving IP Routing Stability With Optical Bypass

    The phenomenal growth of the Internet coupled with the emergence of new QoS-aware services in the network has put an enormous strain on current networks. Research efforts towards optimizing the performance of IP networks have been focused on increasing the utilization of the network while minimizing additional resources used. Many...

    Provided By Technische Universitat Braunschweig

  • White Papers // Mar 2010

    Load Balancing for Holding-Time-Aware Dynamic Traffic Grooming

    In this paper, a new algorithm for dynamic traffic grooming is introduced. It considers the holding-time of the connections and it aims at balancing the load among existing lightpaths to avoid the formation of bottlenecks and, consequently, high blocking probability values. Results indicate that it produces significantly lower blocking probabilities...

    Provided By Technische Universitat Braunschweig

  • White Papers // Feb 2010

    Effective Usage of Dynamic Circuits for IP Routing

    The Internet is susceptible to congestion due to progressively increasing traffic as well as short-lived traffic surges. Traditional mechanisms to counter these effects over-provision the IP network to a significant degree. At the same time, the advent of dynamic circuits in L2/L1 networks has fueled the research in the area...

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2011

    Enhanced Weighted Performance Based Handover Optimization in LTE

    This paper presents an enhanced version of a self-optimizing algorithm that tunes the HandOver (HO) parameters of a LTE (Long-Term Evolution) base station in order to diminish the negative effects that can be introduced by handover (radio link failures, HO failures and ping-pong handovers) and improve the overall network performance....

    Provided By Technische Universitat Braunschweig

  • White Papers // May 2010

    Introducing New Sensors for Activity Recognition

    When introducing a novel sensor to the context recognition community, one of the major challenges is to support reproducibility under similar conditions. In order to get a grasp on this process, the authors divide the context recognition into three subsections: the physical environment and how it is affected by the...

    Provided By Technische Universitat Braunschweig