TY - JOUR
T1 - Robustness-supported user association and small cell switching ON/OFF strategies in 5G mm-wave networks
AU - Ma, Zhongyu
AU - Li, Bo
AU - Yan, Zhongjiang
AU - Yang, Mao
N1 - Publisher Copyright:
Copyright © by HIGH TECHNOLOGY LETTERS PRESS.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - The problem of robustness-supported user association and small cell station (SCS) switching ON/OFF strategies in 5G millimeter wave (mm-wave) networks is investigated, where the robustness of access links is ensured and the number of active SCSs is minimized for the reduction of the aggregation power consumption. Firstly, the problem is formulated as an integer programming (IP) problem. Then the problem is proved as a NP-hard problem by means of the simplification into the minimum dominant set(MDS), which is a NP-hard problem and is intractable to be solved in polynomial time. Secondly, a greedy-idea-based heuristic algorithm (GIHA) is proposed under the consideration of the complexity of the original optimization problem. Finally, superiorities of GIHA are demonstrated with the extensive simulations in 60 GHz mm-wave ultra-dense network in terms of access robustness and aggregate power consumption.
AB - The problem of robustness-supported user association and small cell station (SCS) switching ON/OFF strategies in 5G millimeter wave (mm-wave) networks is investigated, where the robustness of access links is ensured and the number of active SCSs is minimized for the reduction of the aggregation power consumption. Firstly, the problem is formulated as an integer programming (IP) problem. Then the problem is proved as a NP-hard problem by means of the simplification into the minimum dominant set(MDS), which is a NP-hard problem and is intractable to be solved in polynomial time. Secondly, a greedy-idea-based heuristic algorithm (GIHA) is proposed under the consideration of the complexity of the original optimization problem. Finally, superiorities of GIHA are demonstrated with the extensive simulations in 60 GHz mm-wave ultra-dense network in terms of access robustness and aggregate power consumption.
KW - Millimeter wave (mm-wave)
KW - Minimum dominating set
KW - Robustness-supported
KW - User allocation
UR - http://www.scopus.com/inward/record.url?scp=85083170960&partnerID=8YFLogxK
U2 - 10.3772/j.issn.1006-6748.2020.01.002
DO - 10.3772/j.issn.1006-6748.2020.01.002
M3 - 文章
AN - SCOPUS:85083170960
SN - 1006-6748
VL - 26
SP - 8
EP - 16
JO - High Technology Letters
JF - High Technology Letters
IS - 1
ER -