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Intra-domain traffic engineering can significantly enhance the performance of large IP backbone networks. An important component of current methods for traffic engineering with link state routing protocols like OSPF is accurate knowledge of traffic matrix. However, the traffic matrix is unknown and varies with time. So it is important to obtain a traffic engineering method that is "robust"...
An important traffic engineering problem for OSPF networks is the determination of optimal link weights. In this paper, we assume that the traffic matrix, which specifies traffic load between every source-destination pair in the network, is unknown and varies with time, but that always lies inside an explicitly defined region. Our goal is to compute an optimal link weights that minimizes maximum link...
We propose a new optical hybrid switching solution that takes advantage of both Optical Burst Switching (OBS) and Optical Circuit Switching (OCS) technologies, namely, HyLABS (Hybrid Lightpath and Burst Switching). HyLABS uses static program optimized technology and dynamic switching between OCS and OBS, for network environment with uncertain and high bursty traffic demand. Our study shows that HyLABS...
Virtual topology design is an efficient approach to tackle the traffic-grooming problem which multiplexes low-granularity demands into high-granularity pipes in optical networks. But it is hard to deal with the demands with various physical constraints. In this paper, we propose a packing grooming with partial-combination algorithm (PPA) to address this issue. The PPA first routes low-granularity...
In this paper, we propose a novel hybrid optical network design method, cycle-based hybrid switching optical networks (CHSON), to efficiently support bursty traffic patterns of current networks. CHSON integrates highly efficient transportation of optical circuit switching with statistical multiplexing of Optical burst switching. CHSON could not only reduce the strain on packet forwarding of traditional...
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