USER-CENTRIC ULTRA-DENSE NETWORKS FOR 5G: CHALLENGES, METHODOLOGIES, AND DIRECTIONS
USER-CENTRIC ULTRA-DENSE NETWORKS FOR 5G: CHALLENGES, METHODOLOGIES, AND DIRECTIONS
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DOI：
10.1109/mwc.2016.7462488
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发表时间：
2016-04-01
影响因子：
12.9
通讯作者：
Chen, Zhonglin
中科院分区：
文献类型：
--
作者：
Chen, Shanzhi;Qin, Fei;Chen, Zhonglin
超密集网络（UDN）被认为是5G的一项有前途的技术。在本文中，我们定义了以用户为中心的UDN（UUDN）通过介绍网络服务用户的哲学和“去蜂窝”的方法。在分析UUDN面临的挑战和需求的基础上，提出了一种突破传统网络控制用户蜂窝体系结构的新体系结构。动态AP分组是UUDN的核心功能，通过动态AP分组，用户可以在移动过程中享受到满意的、安全的服务。此外，我们提供了移动性管理，资源管理，干扰管理和安全问题的方法。我们指出，这些功能应共同设计和联合优化，以提高系统吞吐量，更高的资源利用率，更好的用户体验，并提高能源效率。最后，UUDN的未来工作进行了讨论。
Ultra-dense networking (UDN) is considered as a promising technology for 5G. In this article, we define user-centric UDN (UUDN) by introducing the philosophy of the network serving user and the "de-cellular" method. Based on the analysis of challenges and requirements of UUDN, a new architecture is presented that breaks through the traditional cellular architecture of the network controlling user. Dynamic AP grouping is proposed as the core function of UUDN, through which a user could enjoy satisfactory and secure service following her movement. Furthermore, we provide methods for mobility management, resource management, interference management, and security issues. We point out that these functions should be co-designed and jointly optimized in order to improve the system throughput with higher resource utilization, better user experience, and increased energy efficiency. Finally, future works in UUDN are discussed.