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针对弹性光网络中不同粒度业务之间的服务公平性问题,提出了公平性感知的动态频谱分配算法.通过引入一个新的效用函数,使得进行频谱分配时不仅考虑不同粒度业务间的服务公平性,而且还兼顾网络整体的频谱资源利用率,从而大大缓解了网络整体阻塞性能损伤.仿真结果表明,在动态网络环境下,该方案可以极大地提高弹性光网络中不同粒度业务之间的服务公平性,并且没有明显的阻塞性能恶化.
Aiming at the problem of service fairness between different granularity services in elastic optical network, a fairness-aware dynamic spectrum allocation algorithm is proposed. By introducing a new utility function, not only the service fairness between different granularity services is considered during spectrum allocation , But also takes into account the utilization of spectrum resources in the network as a whole, thus greatly reducing the overall network congestion performance impairment.The simulation results show that under dynamic network environment, this scheme can greatly improve the service fairness between different granularities in elastic optical network And there is no significant deterioration in blocking performance.