Software‐defined networking to improve handover in mobile edge networks,International Journal of Communication Systems

当前位置： X-MOL 学术 › Int. J. Commun. Syst. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Software‐defined networking to improve handover in mobile edge networks
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-06-29 , DOI: 10.1002/dac.4510
Kaveh Ahmadi ₁ , S. Pourya Miralavy ₁ , Mona Ghassemian _{1,

2}

Affiliation

Mobility management and handover for a seamless connection are among all‐time challenges of wireless networks. Software‐defined networking (SDN) has opened new horizons toward research by adding intelligence in edge networks while decoupling the control and data planes. The flexibility and centralized nature of SDN further improve the handover decision algorithms. In this paper, we have improved the network performance with respect to the number of handovers and the handover delay by applying an LTE‐SDN architecture and a novel handover decision algorithm based on predicting the future locations of a moving vehicle. The proposed algorithm decouples the handover procedure into two phases of preparation and execution. In the preparation phase, which occurs in the control plane, the handover decision and resource allocation take place, and in the execution phase, handover gets executed similar to the LTE architecture. The results of our research indicate that our proposed LTE‐SDN performance is improved with respect to the number of handovers, handover delay, and signaling overhead by 24%, 16%, and 20%, respectively. On the other hand, average Reference Signal Received Quality (RSRQ) value is decreased by 4% as a tradeoff for the improvements gained.

中文翻译：

软件定义的网络可改善移动边缘网络中的切换

移动性管理和无缝连接切换一直是无线网络面临的挑战。软件定义网络（SDN）通过在边缘网络中增加智能，同时将控制平面和数据平面分离，为研究开辟了新的视野。SDN的灵活性和集中性进一步改善了切换决策算法。在本文中，我们通过应用LTE-SDN架构和基于预测移动车辆未来位置的新颖切换决策算法，在切换次数和切换延迟方面提高了网络性能。所提出的算法将切换过程解耦为准备和执行两个阶段。在准备阶段（发生在控制平面中），将进行切换决策和资源分配，在执行阶段，执行移交的过程类似于LTE架构。我们的研究结果表明，我们建议的LTE-SDN性能在切换次数，切换延迟和信令开销方面分别提高了24％，16％和20％。另一方面，平均参考信号接收质量（RSRQ）值降低了4％，这是对获得的改进的折衷。

更新日期：2020-06-29

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11