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Sökning: L773:9781424448265

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1.
  • Forchheimer, Robert, et al. (författare)
  • An Optical Overlay Network Concept for Hard QoS Requirements
  • 2009
  • Ingår i: ICTON 2009. - : IEEE. - 9781424448265 ; , s. 1195-1198
  • Konferensbidrag (refereegranskat)abstract
    • It has long been argued that the best-effort strategy on which Internet is based will limit its use for real-time applications such as video or telephony. However, it has been shown that such services can indeed tolerate some jitter and rate variations through various error resilience and concealment techniques. Despite of that the Internet infrastructure is continuously upgraded with higher performance components, which further reduce the transmission problems; still there are certain classes of applications that undoubtedly will need new transmission paradigms. An example is the remote control of an industrial process that may require jitter levels down to a few microseconds. Another example is quantum cryptography where an optical transparent path between sender and receiver is to be established. In this paper we present a concept based on an optical overlay network infrastructure. This network concept can be applied in an incremental way and will enable the current network infrastructure to handle demands with such extreme QoS requirements.
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2.
  • Tang, Limin, et al. (författare)
  • The PlaNet-OTN module : A double layer design tool for optical transport networks
  • 2009
  • Ingår i: ICTON 2009: 11th International Conference on Transparent Optical Networks. - 9781424448265 ; , s. 744-748
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • PlaNet is a multilayer network planning tool designed and developed at the University of Texas at Dallas. This paper illustrates some of the features of PlaNet-OTN, one of the modules available in the PlaNet tool. PlaNet-OTN can be used to design and plan an optical transport network (OTN), which is comprised of two layers: wavelength division multiplexing (WDM) layer, which deals with wavelength allocation and routing of WDM services, and optical transport network (OTN) layer, which deals with optical data unit (ODU) equipment provisioning and routing of ODU services. Features of the PlaNet-OTN module include: multiple protection schemes and routing constraints for both WDM and ODU services, network equipment cost minimization, load balancing of traffic, and user-controlled run time of the optimization process. As shown in this paper, the PlaNet-WDM and OTN layers and optimizing equipment usage, hence reducing the cost of the whole network.
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