G.V. Bochmann

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In this paper, we propose a timeslot allocation scheme in all-optical TDM networks with no traffic buffering. The purpose of the new scheme is to take the blocking rate to an optimal level close to what can be achieved with the use of buffers. Previous works considered the first fit and least loaded approaches to reserve timeslots in networks that include(More)
Fault detection and localization is a crucial issue in all-optical networks. Since most commercially-available all-optical space switches are incapable of detecting the loss of optical signals along the data paths between its input ports and output ports, fault localization becomes a challenge for providing service survivability in such networks. This paper(More)
We propose a novel Internet Exchange (IX) architecture, namely OSN-IX, which adopts an overlaid-star network (OSN) as an IX. OSN can be considered as a "distributed" switch, which combines the advantages of the network and switch. Compared to other IX architectures, e.g., LAN-based IX, MPLS IX, Photonic IX, etc., OSN-IX has good properties of scalability,(More)
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