5G networks are slated to provide a wide range of services. A critical need in service delivery in 5G networks is its resilience. In this work, we present a 5G network architecture with network virtualization in a multiple provider setting for network resilience that uses a self-organizing ad hoc network among the gNBs (macrosites). Thus, the primary provider for a 5G network may use a secondary provider for network resilience when network components fail. We present an optimization formulation and a heuristic for network survivability for our proposed 5G network for the primary network provider. Through simulations, we show our proposed heuristic is very close to optimal. The simulation results on the trade-off between using a provider’s own network or rely on auxiliary capacity from another provider allow us to see the trade-off on availability. Finally, we study how priority can be provided for certain traffic groups for service survivability.

中文翻译：

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5G 网络的网络虚拟化和生存能力

5G 网络将提供广泛的服务。5G 网络中服务交付的一个关键需求是其弹性。在这项工作中，我们提出了一个在多提供商设置中具有网络虚拟化的 5G 网络架构，以实现网络弹性，该架构在 gNB（宏站点）之间使用自组织自组织网络。因此，当网络组件出现故障时，5G 网络的主要提供商可能会使用二级提供商来实现网络弹性。我们为主要网络提供商提出的 5G 网络提出了网络生存性的优化公式和启发式方法。通过模拟，我们表明我们提出的启发式方法非常接近最优。使用提供商自己的网络或依赖其他提供商的辅助容量之间权衡的模拟结果使我们能够看到可用性的权衡。