Robustness-supported user association and small cell switching ON/OFF strategies in 5G mm-wave networks

Zhongyu Ma, Bo Li, Zhongjiang Yan, Mao Yang

科研成果: 期刊稿件文章同行评审

摘要

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.

源语言英语
页(从-至)8-16
页数9
期刊High Technology Letters
26
1
DOI
出版状态已出版 - 1 3月 2020

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