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The Internet explosion has drastically increased the bandwidth demand of modern telecommunication networks and as optical networks provide an opportunity for the future Internet, it is expected that Internet providers will gradually replace their infrastructures with optical networks. The Internet is a decentralized set of networks (more than 29.000) known as domains or Autonomous Systems on a well-known...
With the rapid advancements in wavelength-division multiplexing (WDM) technology, the capacity of optical fibers is increasing considerably. Traffic streams from users generally have a data-rate that is far less than the bandwidth of optical fibers or that of a lightpath in optical fibers. Traffic grooming can be used to group the traffic streams from various users and match to the data-rate of a...
Wavelength division multiplexing (WDM) is the next step towards leveraging the capabilities of the optical fiber, especially for wide-area backbone optical data communication networks. In this paper, we analyze some of the key architecture and discuss the models corresponding approaches and advances made toward addressing these issues. We first analyze the different IP/WDM networking framework models,...
Designing a network with traffic uncertainty considerations has become crucial due to a new network architecture such as the IP-over-optical network, where the IP-based traffic can be routed directly over the optical layer. Together with the explosive growth of the Internet, the variation in traffic volume, which is termed demand uncertainty in this paper, will be one of the most important constraints...
This paper describes a new path computation model in Multi-protocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. It introduces a path computation element (PCE), which is functionally separate from label switching routers (LSRs). The Path Computation Element (PCE) is an entity that is capable of computing a network path or route based on a network graph, and applying computational...
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