CellOS：零接触软件化开放蜂窝网络
CellOS: Zero-touch Softwarized Open Cellular Networks
摘要：
当前的蜂窝网络依赖于由少数供应商严格控制的封闭且不灵活的基础设施。它们的配置需要供应商支持和冗长的手动操作，这使得电信运营商（TO）无法释放全部网络潜力，也无法执行细粒度的性能优化，尤其是在每个用户的基础上。为了解决这些关键问题，本文介绍了CellOS，一个完全自动化的优化和管理框架的蜂窝网络，需要微不足道的干预（“零接触”）。CellOS利用软件化和自动优化原则，搭建软件定义网络（SDN）和跨层优化的桥梁。与最先进的SDN启发的蜂窝网络解决方案不同，CellOS：（i）通过一般的虚拟网络抽象隐藏低级网络细节;（ii）允许TO定义高级控制目标以指示期望的网络行为，而不需要优化技术的知识，以及（iii）自动生成并执行分布式控制程序，以同时优化多个网络切片上的异构控制目标。CellOS已经在室内测试平台上实现并评估了两种不同的LTE兼容实现：OpenAirInterface和srsLTE。我们进一步展示了CellOS在远程室外POWDER-RENEW PAWR 5G平台上的功能。多基站和多用户场景的结果表明，CellOS是平台无关的，并自适应不同的网络部署。我们的调查显示，CellOS在关键指标上优于现有解决方案，包括吞吐量（提高高达86%），能源效率（提高高达84%）和公平性（提高高达29%）。
英文摘要：
Current cellular networks rely on closed and inflexible infrastructure tightly controlled by a handful of vendors. Their configuration requires vendor support and lengthy manual operations, which prevent Telco Operators (TOs) from unlocking the full network potential and from performing fine grained performance optimization, especially on a per-user basis. To address these key issues, this paper introduces CellOS, a fully automated optimization and management framework for cellular networks that requires negligible intervention ("zero-touch"). CellOS leverages softwarization and automatic optimization principles to bridge Software-Defined Networking (SDN) and cross-layer optimization. Unlike state-of-the-art SDN-inspired solutions for cellular networking, CellOS: (i) Hides low-level network details through a general virtual network abstraction; (ii) allows TOs to define high-level control objectives to dictate the desired network behavior without requiring knowledge of optimization techniques, and (iii) automatically generates and executes distributed control programs for simultaneous optimization of heterogeneous control objectives on multiple network slices. CellOS has been implemented and evaluated on an indoor testbed with two different LTE-compliant implementations: OpenAirInterface and srsLTE. We further demonstrated CellOS capabilities on the long-range outdoor POWDER-RENEW PAWR 5G platform. Results from scenarios with multiple base stations and users show that CellOS is platform-independent and self-adapts to diverse network deployments. Our investigation shows that CellOS outperforms existing solutions on key metrics, including throughput (up to 86% improvement), energy efficiency (up to 84%) and fairness (up to 29%).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
