TY - GEN
T1 - Modified adaptive 2-Step ICIC for distributed MIMO system with user clustering
AU - Boonkajay, Amnart
AU - Saito, Tomoyuki
AU - Adachi, Fumiyuki
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Distributed multi-input multi-output (MIMO) system with user equipment (UE) clustering can boost up area spectrum efficiency by performing UE scheduling independently in all clusters. However, UEs locating at cell-edge area suffer from strong inter-cell interference (ICI). We have proposed a de-centralized adaptive 2-step ICI coordination (ICIC) which employs UE classification and selection of additional fractional frequency band based on received interference level, but UE clustering has not been considered. In this paper, we modify the adaptive 2-step ICIC so as to fit to distributed MIMO system with UE clustering. Multiple cell-edge UEs are scheduled simultaneously and adjust the cell-center UE/cell-edge UE timeslot ratio to keep an average UE connection probability similar to system without ICIC. Simulation results show that the modified adaptive 2-step ICIC improves the cell-edge UE link capacity without significantly degrading entire-cell UE link capacity.
AB - Distributed multi-input multi-output (MIMO) system with user equipment (UE) clustering can boost up area spectrum efficiency by performing UE scheduling independently in all clusters. However, UEs locating at cell-edge area suffer from strong inter-cell interference (ICI). We have proposed a de-centralized adaptive 2-step ICI coordination (ICIC) which employs UE classification and selection of additional fractional frequency band based on received interference level, but UE clustering has not been considered. In this paper, we modify the adaptive 2-step ICIC so as to fit to distributed MIMO system with UE clustering. Multiple cell-edge UEs are scheduled simultaneously and adjust the cell-center UE/cell-edge UE timeslot ratio to keep an average UE connection probability similar to system without ICIC. Simulation results show that the modified adaptive 2-step ICIC improves the cell-edge UE link capacity without significantly degrading entire-cell UE link capacity.
KW - Distributed MIMO
KW - Inter-cell interference coordination
KW - Radio access network
KW - User scheduling
UR - http://www.scopus.com/inward/record.url?scp=85073571490&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073571490&partnerID=8YFLogxK
U2 - 10.1109/VTS-APWCS.2019.8851661
DO - 10.1109/VTS-APWCS.2019.8851661
M3 - Conference contribution
AN - SCOPUS:85073571490
T3 - Proceedings - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
BT - Proceedings - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE VTS Asia Pacific Wireless Communications Symposium, APWCS 2019
Y2 - 28 August 2019 through 30 August 2019
ER -