Millimeter-wave Evolution for 5G Cellular Networks
Millimeter-wave Evolution for 5G Cellular Networks
复制标题
DOI：
10.1587/transcom.e98.b.388
复制
发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
K. Sakaguchi;G. Tran;Hidekazu Shimodaira;S. Nanba;Toshiaki Sakurai;K. Takinami;I. Siaud;E. Strinati;A. Capone;Ingolf Karls;R. Arefi;T. Haustein
中科院分区：
文献类型：
--
作者：
K. Sakaguchi;G. Tran;Hidekazu Shimodaira;S. Nanba;Toshiaki Sakurai;K. Takinami;I. Siaud;E. Strinati;A. Capone;Ingolf Karls;R. Arefi;T. Haustein
5G（第5代）蜂窝网络是由移动通信量的爆炸式增长引发的，需要在10年内将系统速率提高1000倍。由于这一普遍问题，有一些研究将毫米波接入作为多频段异构网络集成到当前的蜂窝网络中，以利用毫米波频段的超宽带方面。本文作者提出了具有毫米波接入的蜂窝网络的综合架构，其中毫米波小型基站和传统宏基站连接到集中式无线局域网（C-RAN），通过实现节能无缝切换以及集中资源控制（包括动态小区结构）来有效运行系统，通过用户平面/控制平面分裂来匹配毫米波接入与高流量用户位置的有限覆盖。为了证明所提出的毫米波接入5G蜂窝网络的有效性，本文通过引入预期未来流量模型、基于测量的毫米波传播模型和利用C-RAN架构的集中式小区关联算法，进行了系统级仿真。数值结果表明，该网络可以在10年内实现比现有网络高1000倍的系统速率，这是通常使用3.5 GHz频段的小型小区无法实现的。此外，本文还给出了毫米波器件的最新现状和相关法规，以说明在5G系统中使用毫米波的可行性。
Triggered by the explosion of mobile traffic, 5G (5th Generation) cellular network requires evolution to increase the system rate 1000 times higher than the current systems in 10 years. Motivated by this common problem, there are several studies to integrate mm-wave access into current cellular networks as multi-band heterogeneous networks to exploit the ultra-wideband aspect of the mm-wave band. The authors of this paper have proposed comprehensive architecture of cellular networks with mm-wave access, where mm-wave small cell basestations and a conventional macro basestation are connected to Centralized-RAN (C-RAN) to effectively operate the system by enabling power efficient seamless handover as well as centralized resource control including dynamic cell structuring to match the limited coverage of mm-wave access with high traffic user locations via user-plane/control-plane splitting. In this paper, to prove the effectiveness of the proposed 5G cellular networks with mm-wave access, system level simulation is conducted by introducing an expected future traffic model, a measurement based mm-wave propagation model, and a centralized cell association algorithm by exploiting the C-RAN architecture. The numerical results show the effectiveness of the proposed network to realize 1000 times higher system rate than the current network in 10 years which is not achieved by the small cells using commonly considered 3.5 GHz band. Furthermore, the paper also gives latest status of mm-wave devices and regulations to show the feasibility of using mm-wave in the 5G systems.