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Though auction has been exploited to deploy services or allocate resources in the literatures, an efficient truthful auction mechanism is required to charge service providers as buyers for deployable locations as sellers in a Cloud-Integrated WOBAN(CIW)[1]. In this paper, we first design a truthful auction mechanism for service deployment in a CIW, which can be divided into two stages: the match between...
In order to virtualize the optical resources and support as required, software-defined optical networks (SDON) can dynamically customize the structure and function of the optical network using the software programming method according to the requirements of the users and operators. Each layer in SDON architecture has a lot of core technology. In this paper, we focus on the dynamic scheduling and optimization...
We study the problem of dynamic content replacement in terms of network state variation in elastic optical datacenter networks. A dynamic content replacement scheme is proposed to minimize spectrum consumption, blocking probability and network latency.
In this paper, a novel Cross-layer Dynamic Bandwidth Allocation Algorithm Based on Convex Optimization Theory(CO-CDBA) in Digital Video Broadcast-Return Channel via Satellite system is proposed. A novel utility function by taking application layer, Data Link Layer and physical layer(PHY) parameters into account is established. The Dynamic Bandwidth Allocation(DBA) problem is converted to a convex...
The flow aggregation scheme which aggregates a large number of finer-grained services into one large flow can save transceivers and improve spectrum efficiency. It ensures that all services in the aggregated flow have a same routing. Moreover, the spectrum allocated to all finer-grained services in the aggregated flow is continuous. Compared with independent transmission scheme which conducts the...
Elastic optical network (EON) has been receiving extensive attention due to its inherent flexibility and the efficiency with which it allocates fiber bandwidth. Depending on the physical impairment, the distance adaptive modulation scheme can be adopted to ensure the transmission quality. However, distance adaptive modulation scheme will occupy more spectrum resources for the long-distance path. A...
In Elastic Optical Net-works (EONs), dynamic allocation and release of lightpaths will lead to frequency spectrum fragment issue which making the optical spectrum into non-aligned, isolated and small-sized spectrum segments. Defragmentation strategies are key issues to minimize this problem. In this paper, we investigate the states of spectrum when the bandwidth blocking probability (BBP) is high,...
A mode conversion-based crosstalk-aware routing, spectrum and mode assignment (MC-CA RSMA) algorithm is introduced in space-division multiplexing elastic optical networks (SDM-EONs) over few-mode fibers. Simulation results show the MC-CA RSMA algorithm can greatly reduce the impact of inter-mode crosstalk on network performance compared with benchmark algorithms.
Large-scale disasters (such as earthquake, flood, tornado) may cause severe network failures, leading to massive disruptions and data loss. Particularly, the aftermaths of disasters may further threaten the residual network and impact the existing/survived service connections. In this paper, we study a reliability based restoration scheme for recovering the impacted (disrupted and/or reliability-decreased)...
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