NexRAN: Closed-loop RAN slicing in POWDER -A top-to-bottom open-source open-RAN use case
NexRAN: Closed-loop RAN slicing in POWDER -A top-to-bottom open-source open-RAN use case
复制标题
NexRAN：POWDER 中的闭环 RAN 切片 - 自上而下的开源开放 RAN 用例
DOI：
10.1145/3477086.3480842
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Van Der Merwe, Jacobus
中科院分区：
文献类型：
--
作者：
Johnson, David;Maas, Dustin;Van Der Merwe, Jacobus
与早期的“网络软件化”努力非常相似，开放RAN概念准备对无线电接入网络（RAN）的实现和操作方式产生变革性影响。RAN生态系统固有的复杂性及其快速发展的事实使Open RAN成为用例、系统实现、安全性等方面的丰富研究领域。然而，同样的复杂性阻碍了研究工作。具体来说，缺乏端到端的开源软件和与Open RAN生态系统相关的完全开发的用例。此外，要真正推进最先进的技术，需要在现实的无线环境中探索用例。本文描述了我们通过在POWDER移动的和无线研究平台中实现NexRAN（一个自上而下的开源Open RAN用例）来解决这些缺点的努力。具体而言，NexRAN允许在O-RAN生态系统中实现RAN切片的闭环控制。RAN切片在srsRAN开源移动性堆栈中实现，并通过自定义服务模型暴露给NexRAN xApp，后者在O-RAN联盟的RAN智能控制器（RIC）上执行。NexRAN xApp通过阅读RAN元素的当前状态（使用O-RAN关键性能测量（KPM）服务模型）并通过自定义切片服务模型控制切片行为，实现RAN切片的策略驱动闭环控制。我们在POWDER平台中演示和评估NexRAN，并开源了我们实现的所有方面，以实现对该领域的研究。
Much like earlier "network softwarization" efforts, the Open RAN concept is poised to have a transformative impact on the manner in which radio access networks (RANs) are realized and operated. The inherent complexity of the RAN ecosystem and the fact that it is rapidly evolving makes Open RAN a rich area of research into use cases, system realization, security, and more. This same complexity, however, hampers research efforts. Specifically, there is a lack of end-to-end open source software and fully-developed use cases associated with the Open RAN ecosystem. Further, to truly advance the state of the art will require use cases to be explored in realistic wireless environments. This paper describes our efforts to address these shortcomings by realizing NexRAN, a top-to-bottom, open-source Open RAN use case in the POWDER mobile and wireless research platform. Specifically, NexRAN allows closed-loop control of a RAN slicing realization in an O-RAN ecosystem. RAN slicing is implemented in the srsRAN open source mobility stack and is exposed through a custom service model to the NexRAN xApp, which executes on a RAN intelligent controller (RIC) from the O-RAN Alliance. The NexRAN xApp realizes policy driven closed-loop control of RAN slices by reading the current state of RAN elements (using the O-RAN key performance measurements (KPM) service model) and controlling slice behavior via the custom slicing service model. We demonstrate and evaluate NexRAN in the POWDER platform and have open sourced all aspects of our realization to enable research into this domain.
DOI：
10.1145/3372224.3380891
发表时间：
2020-04
期刊：
Proceedings of the 26th Annual International Conference on Mobile Computing and Networking
影响因子：
--
作者：
D. Raychaudhuri;I. Seskar;G. Zussman;T. Korakis;D. Kilper;Tingjun Chen;Jakub Kolodziejski;Michael Sherman;Z. Kostić;X. Gu;H. Krishnaswamy;S. Maheshwari;P. Skrimponis;Craig L. Gutterman
通讯作者：
D. Raychaudhuri;I. Seskar;G. Zussman;T. Korakis;D. Kilper;Tingjun Chen;Jakub Kolodziejski;Michael Sherman;Z. Kostić;X. Gu;H. Krishnaswamy;S. Maheshwari;P. Skrimponis;Craig L. Gutterman
Mosaic5G：敏捷灵活的5G研究服务平台
DOI：
--
发表时间：
2018
期刊：
CCRV
影响因子：
--
作者：
N. Nikaein;Chia;K. Alexandris
通讯作者：
K. Alexandris