We address a key challenge of 5G networks by proposing a strategy for the resource-efficient and end-to-end allocation of compute and connectivity resources in a dynamic 5G service provisioning scenario, such that the service latency and availability requirements are guaranteed. Our heuristic algorithm shows that resource efficiency is significantly improved by processing services in the large core data centers (DCs) with a rich amount of compute resources and exploiting the benefits of traffic grooming over the metro and core fiber links. Moreover, our resource-efficient provisioning algorithm avoids possible violation of the service availability requirements caused by reaching the central DC locations by adding backup connectivity resources. Our simulation results demonstrate a resource efficiency improvement reflected by lowering the service blocking probability by up to four orders of magnitude compared to the conventional service provisioning methods utilizing distributed small DCs.

中文翻译：

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延迟和可用性受限的 5G 服务的端到端供应

我们通过提出一种在动态 5G 服务提供场景中资源高效和端到端分配计算和连接资源的策略来解决 5G 网络的一个关键挑战，从而保证服务延迟和可用性要求。我们的启发式算法表明，通过在具有大量计算资源的大型核心数据中心 (DC) 中处理服务并利用城域和核心光纤链路上的流量疏导优势，可以显着提高资源效率。此外，我们的资源高效配置算法通过添加备份连接资源避免了由于到达中心 DC 位置而可能违反服务可用性要求。