TY - JOUR
T1 - Challenges for beyond 5G
T2 - ultra-densification of radio access network
AU - Adachi, Fumiyuki
AU - Takahashi, Ryo
AU - Matsuo, Hidenori
N1 - Publisher Copyright:
© 2020, Editorial Board of Journal on Communications. All right reserved.
PY - 2020/11/25
Y1 - 2020/11/25
N2 - Ultra-densification of radio access network (RAN) is a key to efficiently support the exponentially growing mobile data traffic in 5G era. Furthermore, extremely high frequency band like mmWave band was utilized to solve the bandwidth shortage problem. However, untra-dense reusing the same radio resource produced severe interference. And the mmWave 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 (eIC) was described. Finally, the effectiveness of distributed MIMO based RAN with eIC by computer simulation was showed.
AB - Ultra-densification of radio access network (RAN) is a key to efficiently support the exponentially growing mobile data traffic in 5G era. Furthermore, extremely high frequency band like mmWave band was utilized to solve the bandwidth shortage problem. However, untra-dense reusing the same radio resource produced severe interference. And the mmWave 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 (eIC) was described. Finally, the effectiveness of distributed MIMO based RAN with eIC by computer simulation was showed.
KW - 5G advanced systems
KW - Cooperative signal transmission
KW - Distributed MIMO
KW - Interference coordination
KW - Radio access network
UR - http://www.scopus.com/inward/record.url?scp=85097568667&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85097568667&partnerID=8YFLogxK
U2 - 10.11959/j.issn.1000-436x.2020240
DO - 10.11959/j.issn.1000-436x.2020240
M3 - Article
AN - SCOPUS:85097568667
VL - 41
SP - 1
EP - 11
JO - Tongxin Xuebao/Journal on Communications
JF - Tongxin Xuebao/Journal on Communications
SN - 1000-436X
IS - 11
ER -