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Trunk Reservation for Fair Utilization in Flexible Optical Networks

机译:灵活的光网络中为合理利用而保留中继线

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Flexible optical network (FON) architectures are considered a very promising solution where spectrum resources are allocated within flexible frequency grids. These architectures must handle the spectrum more efficiently and must support on-demand elastic bandwidth provisioning. However, when multi-bandwidth services coexist without a suitable bandwidth management, blocking of wider spectrum calls increases compared to narrower spectrum calls. This unfairness effect limits FONs' performance, not fulfilling much of the promise they hold. In this letter we present a new specific variant of trunk reservation policies that can effectively deal with fast on-demand bandwidth provisioning. Through network simulations we show that trunk reservation is able to guarantee fairness and to equalize the performance of an entire network in terms of blocking probability and link utilization with different flexible spectrum allocation policies.
机译:灵活的光网络(FON)体系结构被认为是非常有前途的解决方案,其中频谱资源在灵活的频率网格内分配。这些架构必须更有效地处理频谱,并且必须支持按需弹性带宽设置。但是,如果在没有适当的带宽管理的情况下并存多带宽服务,则与较窄的频谱呼叫相比,较宽频谱的呼叫阻塞会增加。这种不公平的影响限制了FON的性能,无法履行他们所持有的大部分承诺。在这封信中,我们介绍了中继保留策略的一个新的特定变体,可以有效处理快速的按需带宽配置。通过网络仿真,我们显示中继预留能够在不同的灵活频谱分配策略的阻塞概率和链路利用率方面保证公平性并均衡整个网络的性能。

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