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Multicore fibres (MCF) offer the opportunity of both increasing communication capacity as well as offering enhanced flexibility in the network scenario. Software-defined networks (SDN) are capable of handling novel functionalities coming from physical layer with the aim of better exploit overall connectivity. In this paper, network defragmentation is considered combined with space-division multiplexing...
In this paper, we consider the performance of the transmission control protocol (TCP) when used in data center networks featuring optical burst switching (OBS). We evaluate the performance using network-level simulation. The bandwidth-delay product in wide-area OBS networks is high enough to require the use of one-way reservation to achieve good throughput. The resulting burst loss will be mistakenly...
In this paper, we introduce a novel optical interconnect for data center networks (DCNs) with low latency and high throughput. The hybrid architecture features MEMS OXCs for low cost. The low latency is achieved using fast optical switches. We evaluate the performance of the system using simulation by considering different capacities of slow and fast optical switches and also investigate a trade-off...
In this paper, we evaluate the performance of methods of optical burst switching (OBS) designed for data center networks (DCNs) by using network-level simulation. We use fast optical switches in a single hop topology with a centralized optical control plane and OBS with a two-way reservation protocol that results in zero burst loss. We use different workloads with various burst assembly parameters...
Optical Circuit Switching (OCS) is a switching technique which has been used in the core of the optical network for many years but Optical Packet Switching (OPS) and Optical Burst Switching (OBS) are also some of the promising switching techniques fast emerging in the optical network. All of these techniques have some advantages and disadvantages. Flow Transfer Mode (FTM) is a hybrid optical switching...
Network traffic is continuously increasing over the internet due to emerging end user applications provided by cloud computing. Optical networks are hence rapidly gaining exclusivity in access networks and data center networks as they provide huge bandwidth support. Optical switching techniques like Optical Circuit Switching (OCS), Optical Packet Switching (OPS) and Optical Burst Switching (OBS) have...
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