Performance Evaluation for Local Anchor-Based Dual Connectivity in 5G User-Centric Network
Performance Evaluation for Local Anchor-Based Dual Connectivity in 5G User-Centric Network
复制标题
5G以用户为中心的网络中基于本地锚点的双连接性能评估
DOI：
10.1109/access.2016.2606420
复制
发表时间：
2016-09
期刊：
影响因子：
3.9
通讯作者：
Zhang Xing
中科院分区：
文献类型：
--
作者：
Zhang Hongtao;Meng Na;Liu Yang;Zhang Xing
超密集网络(UDN)被认为是实现未来5G系统数据速率日益爆炸性增长的最有前途的技术之一。然而，大量的小小区导致小区边缘增加和小区间干扰加剧，导致频繁的切换事件和更多的无线链路故障。在分析统一数字网络移动性管理挑战的基础上，提出了一种适用于以用户为中心的网络的基于本地锚点的双连接(DC)架构。在提出的体系结构下，本地锚点充当主eNodeB(MenB)，而相邻的小小区充当从eNodeB(SeNB)，以便根据每个用户的移动为以用户为中心的服务提供DC传输。相应地给出了移动性管理的关键步骤，并从小小区中选择了MeNB和SeNB来研究它们的潜力，这与传统蜂窝架构下的移动性管理方法不同。在不同的参数配置下进行了性能评估，以评估所提出方案的最大潜力。仿真结果表明，与现有LTE系统相比，当用户设备速度为3 km/h时，切换失败率最大下降53%以上，平均频谱效率提高5%。
Ultra-dense network (UDN) is considered as one of the most promising techniques in achieving the increasingly explosive growth of data rates for future 5G system. However, a large number of small cells lead to the increased cell edges and the rugged inter-cell interference, which cause frequent handover events and more radio link failure. In this paper, a local anchor-based dual connectivity (DC) architecture is proposed for a user-centric network based on the analysis of mobility management challenges of UDN. Under the proposed architecture, the local anchor acts as the master eNodeB (MeNB) with neighboring small cells acting as slave eNodeBs (SeNBs) to provide DC transmission for user-centric service following each user's movement. Key procedures for mobility management are correspondingly provided and both the MeNBs and SeNBs are selected from the small cells to investigate the potential of them, which are different from the mobility management methods under the traditional cellular architecture. Performance evaluations are conducted under different parameter configurations to evaluate the maximum potential of the proposed scheme. Simulation results show that in our proposed scheme, the handover failure rate shows a maximum decrease of more than 53% and the average user spectrum efficiency achieves an increase of 5% gains over the current LTE system when the user equipment speed is 3 km/h.
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DOI：
10.1109/eucnc.2014.6882694
发表时间：
2014-06
期刊：
2014 European Conference on Networks and Communications (EuCNC)
影响因子：
--
作者：
H. Tullberg;Zexian Li;A. Hoglund;P. Fertl;D. G. Serrano;Krystian Pawlak;P. Popovski;G. Mange;Ö. Bulakci
通讯作者：
H. Tullberg;Zexian Li;A. Hoglund;P. Fertl;D. G. Serrano;Krystian Pawlak;P. Popovski;G. Mange;Ö. Bulakci
影响因子：
8.1
作者：
Hoydis, Jakob;Kobayashi, Mari;Debbah, Merouane
通讯作者：
Debbah, Merouane
影响因子：
12.9
作者：
Haijun Zhang;Chunxiao Jiang;Julian Cheng
通讯作者：
Haijun Zhang;Chunxiao Jiang;Julian Cheng
影响因子：
12.9
作者：
Chen, Shanzhi;Qin, Fei;Chen, Zhonglin
通讯作者：
Chen, Zhonglin
影响因子：
8.3
作者：
Andrews, Jeffrey G.;Baccelli, Francois;Ganti, Radha Krishna
通讯作者：
Ganti, Radha Krishna