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arXiv 2407.18342cs.NI
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MicroOpt:5G及更高版本网络中模型驱动的切片资源优化

MicroOpt: Model-driven Slice Resource Optimization in 5G and Beyond Networks

Muhammad Sulaiman, Mahdieh Ahmadi, Bo Sun, Niloy Saha, Mohammad A. Salahuddin, Raouf Boutaba, Aladdin Saleh

AI总结:

提出MicroOpt框架,利用可微神经网络模型与梯度下降优化5G网络切片资源分配,并通过拉格朗日分解满足QoS约束,相比现有方法资源分配提升达21.9%。

摘要:

5G网络的一个关键属性是其满足多样化应用需求的能力。这通过创建逻辑隔离的虚拟网络或切片来实现,这些切片具有针对特定用例定制的不同服务级别协议(SLA)。然而,由于不同的流量和QoS需求,高效分配资源以维持切片SLA具有挑战性。传统的基于峰值流量的资源分配会导致过度配置,因为实际流量很少达到峰值。此外,跨越不同网络段的端到端切片中资源分配与QoS之间的复杂关系使得传统优化技术不切实际。该领域的现有方法使用网络模型或仿真以及各种优化方法,但在不同切片类型的最佳性、可处理性和泛化性方面存在困难。在本文中,我们提出了MicroOpt,这是一种新颖的框架,利用基于可微神经网络的切片模型进行梯度下降以优化资源,并利用拉格朗日分解来满足QoS约束。我们使用带有真实世界流量跟踪的开源5G测试床,将MicroOpt与两种最先进的方法进行了评估。结果表明,与这些方法相比,在各种场景下(包括不同的QoS阈值和动态切片流量),资源分配提高了21.9%。

英文摘要:

A pivotal attribute of 5G networks is their capability to cater to diverse application requirements. This is achieved by creating logically isolated virtual networks, or slices, with distinct service level agreements (SLAs) tailored to specific use cases. However, efficiently allocating resources to maintain slice SLA is challenging due to varying traffic and QoS requirements. Traditional peak traffic-based resource allocation leads to over-provisioning, as actual traffic rarely peaks. Additionally, the complex relationship between resource allocation and QoS in end-to-end slices spanning different network segments makes conventional optimization techniques impractical. Existing approaches in this domain use network models or simulations and various optimization methods but struggle with optimality, tractability, and generalizability across different slice types. In this paper, we propose MicroOpt, a novel framework that leverages a differentiable neural network-based slice model with gradient descent for resource optimization and Lagrangian decomposition for QoS constraint satisfaction. We evaluate MicroOpt against two state-of-the-art approaches using an open-source 5G testbed with real-world traffic traces. Our results demonstrate up to 21.9% improvement in resource allocation compared to these approaches across various scenarios, including different QoS thresholds and dynamic slice traffic.

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。

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