A Survey on Research Activities for Deploying Cell Free Massive MIMO towards Beyond 5G

被引:7
作者
Kanno, Issei [1 ]
Yamazaki, Kosuke [1 ]
Kishi, Yoji [1 ]
Konishi, Satoshi [1 ]
机构
[1] KDDI Res Inc, Fujimino 3568502, Japan
关键词
cell free massive MIMO; beyond; 5G; deployment; antenna distribution; fronthaul; scalability; PILOT ASSIGNMENT; WIRELESS; SYSTEMS;
D O I
10.1587/transcom.2021MEI0001
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
5G service has been launched in various countries, and re-search for the beyond 5G is already underway actively around the world. In beyond 5G, it is expected to expand the various capabilities of com-munication technologies to cover further wide use cases from 5G. As a candidate elemental technology, cell free massive MIMO has been widely researched and shown its potential to enhance the capabilities from various aspects. However, for deploying this technology in reality, there are still many technical issues such as a cost of distributing antenna and installing fronthaul, and also the scalability aspects. This paper surveys research trends of cell free massive MIMO, especially focusing on the deployment challenges with an introduction to our specific related research activities including some numerical examples.
引用
收藏
页码:1107 / 1116
页数:10
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