Revolution of Self-Organizing Network for 5G MmWave Small Cell Management: From Reactive to Proactive
Revolution of Self-Organizing Network for 5G MmWave Small Cell Management: From Reactive to Proactive
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DOI：
10.1109/mwc.2018.1700420
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发表时间：
2018-08
影响因子：
12.9
通讯作者：
Jun Xu;Junmei Yao;Lu Wang;Kaishun Wu;Lei Chen;W. Lou
中科院分区：
文献类型：
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作者：
Jun Xu;Junmei Yao;Lu Wang;Kaishun Wu;Lei Chen;W. Lou
毫米波频段已被广泛接受为下一代超密集小小区通信的理想载波，以实现网络容量增加1000倍的宏伟目标，但这种新颖的架构也引发了运营商在规划，配置，维护，优化和故障排除方面的巨大焦虑。大约10年前引入的SON旨在通过以自动方式解决复杂性和降低成本来附属网络管理，如今已被广泛认为是实现小小区部署的唯一可行方式;然而，作为传统上为基于LTE的系统设计和标准化的技术，传统的范例将不再适合于基于毫米波的蜂窝网络，其包含一些特有的特性，例如信号传输的方向性以及对阻塞和移动性的敏感性，这些都不同于它们的低频对应物，从而带来了许多前所未有的挑战。为了顺利过渡到5G时代，传统的SON活动迫切需要一场彻底的革命，通过定义新功能和提出新算法来思考新功能并科普新问题。这很重要，但并不容易。在这篇文章中，我们分享了一些关于面向毫米波的主动SON范例的初步见解，希望能促进这一领域的进一步研究，并加速其在5G中的实际应用。
The mmWave frequency band has been widely accepted as an ideal carrier for the next-generation ultra-dense small cell communications to achieve the ambitious objective of 1000-fold increase in network capacity, but such a novel architecture also invokes tremendous anxiety for operators regarding the planning, configuration, maintenance, optimization, and troubleshooting. SON, introduced about 10 years ago, aiming to affiliate network management through addressing complexity and decreasing cost in an automatic way, nowadays has been extensively considered the only viable way to enable small cell deployments; however, as a technology traditionally designed and standardized for LTE-based systems, the conventional paradigm will no longer be suitable for mmWavebased cellular networks, which contain some peculiar characteristics, such as directivity of signal transmission and sensitivity to blockage and mobility, differing from their low-frequency counterparts and thereby bringing numerous unprecedented challenges. To smoothly migrate toward the 5G era, the legacy SON campaign eagerly demands a thorough revolution to think over the new features and cope with the new problems by defining new functionalities and proposing new algorithms. It is important, but not easy. In this article, we share some preliminary insights about the mmWave-oriented proactive SON paradigm, hopefully spurring further research in this area and accelerating its practical application in 5G.