Challenges for beyond 5G:ultra-densification of radio access network

作     者：Fumiyuki Adachi Ryo Takahashi Hidenori Matsuo Fumiyuki Adachi;Ryo Takahashi;Hidenori Matsuo

作者机构：Research Organization of Electrical CommunicationTohoku UniversitySendai 980-8577Japan 

出 版 物：《通信学报》 (Journal on Communications)

年 卷 期：2020年第41卷第11期

页      面：1-11页

核心收录：

学科分类：0810[工学-信息与通信工程] 1205[管理学-图书情报与档案管理] 08[工学] 0839[工学-网络空间安全] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：The Research and Development for Further Advancement of the 5th Generation Mobile Communication System(No.JP1000254)。 

主　　题：5G advanced systems distributed MIMO radio access network interference coordination cooperative signal transmission 

摘      要：Ultra-densification of radio access network(RAN)is a key to efficiently support the exponentially growing mobile data traffic in 5 G era.Furthermore,extremely high frequency band like mm Wave band was utilized to solve the bandwidth shortage problem.However,untra-dense reusing the same radio resource produced severe interference.And the mm Wave link was very harsh due to frequent blockage by obstacles.Therefore a new RAN architecture needed to be introduced to realize ultra-reliable communications in such a severe radio propagation environment.An architecture of distributed MIMO based RAN was presented.Then,enhanced interference coordination(e IC)was described.Finally,the effectiveness of distributed MIMO based RAN with e IC by computer simulation was showed.