ID 原文 译文
22495 针对最优服务路径选择问题，该文设计了一种集中调控的分布式服务路径选择算法，各节点根据服务请求中的第 1 个元能力和目的节点生成路由表，控制器实时监控网络，调控代价过高路径并平衡网络的带宽和负载。 For the issue of the best service path selection, this paper proposes a distributed service path selection algorithm under central control. Each node generates routing tables based on the first function and destination node in service request. The controller monitors the network in real time, regulates paths with high costs and balances the bandwidths and loads of the network.
22496 性能分析和仿真结果表明，分布式路由表能够生成有效的服务路径，表项规模、收敛时间与元能力个数成正比，在 30%的集中调控比例下，路径代价和负载均衡度性能良好，与其他算法相比，对服务请求的响应时延降低约 50%。 Performance analysis and simulation results show that, the distributed routing tables can generate efficient service paths and the convergence time is proportional to the number of functions. When the proportion of central control is 30 percent, the algorithm has a good performance on average cost of paths and load balance. The response delay to service request decreases almost 50 percent compared with other algorithms.
22497 网络功能虚拟化(NFV)的引入使得运营商网络的网络功能不再依赖于专用硬件设备且服务能力更具弹性。 With the introduction of Network Function Virtualization (NFV), the network functions of operator networks are no longer dependent on dedicated hardware devices, and service capabilities of carrier network are more resilient than ever.
22498 为更有效地使用基于 NFV 的运营商网络中的资源，该文提出一种网络服务链(NSC)的优化构建策略。 For more efficient use of resources in NFV-based operator networks, this paper proposes a construction policy of Network Service Chain (NSC).
22499 和已有研究工作不同，该文从减少因计算资源和网络资源这两类资源的不合理使用产生的资源碎片角度出发，以最大化运营商网络能容纳的业务流数量为目标，建立 NSC 构建的数学模型，且提出一种新的贪心 NSC 构建策略，该策略融合了路径选择和 NSC 的多个 VNF 部署。 This paper aims to maximize the number of flows that the carrier network can accommodate, and a mathematical model is established for NSC construction from the point of view of reducing resource fragmentation due to the unreasonable use of computing resources and network resources. A new greedy NSC construction strategy is designed, which combines the path selection and multiple VNFs deployment of NSC.
22500 数值仿真实验表明，在相同资源总量的情况下与典型策略相比，所提策略能够容纳更多的业务流，实现更低的端到端的数据延迟，有效提高了运营商网络中通用服务器和交换机的资源利用率。 Numerical simulation result shows that the proposed policy can accommodate more flows and achieve lower end-to-end data latency than the typical policies in the case of the same amount of resources, which improves effectively resource utilization of the general server and switch in operator network.
22501 由于冲击噪声的二阶矩不存在，基于二阶矩估计的子空间类算法和稀疏重构类算法不能有效估计出波达方向，且不能很好地处理相干信源。 Sparse reconstruction method suffers severe degradation in presence of impulsive noise.
22502 为了解决这个问题，采用多项式预处理技术对接收信号的自相关函数和方向矢量进行预处理，并在此基础上利用稀疏重构技术进行 DoA 估计。 To deal with this problem, this paper proposed a DoA estimation method based on polynomial matrix preconditioning through sparse reconstruction.
22503 多项式预处理可以缩小矩阵的奇异值分布，使得反映噪声能量的奇异值分布更加明显，从而有利于减小冲击噪声的影响。 Based on the sparse reconstruction, multiplying the covariance function and the direction vector by Polynomial preprocessing, which can reduce the distribution matrix of singular values, improve singular value ratio, and exhibit better sparsity.
22504 仿真结果表明，算法在冲击噪声环境下能准确稳定地估计出两种信源的波达方向，尤其是在冲击噪声较强的情况下表现出灵敏度高、鲁棒性好的优点。 Simulation results demonstrate that the proposed algorithm achieves accurate DoA in coherent and incoherent signal sources under impulsive noise, especially have high accuracy and robustness in the heavy impulsive noise.