大規模基地局連携を用いた動的カバレッジ制御を実現する高度なセルラネットワークアーキテクチャに関する研究

Material type: 博士論文

Author: E..Rezagah, Royaほか

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Publication date: 2014-09

Material Format: Digital

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Name of awarding university/degree: 東京工業大学,博士（工学）

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Note (General)：: This research focuses on a heterogeneous wireless cellular network consisting of small cells within macro cells. The thesis aims to provide a developm...

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Material Type: 博士論文
Title: 大規模基地局連携を用いた動的カバレッジ制御を実現する高度なセルラネットワークアーキテクチャに関する研究
Author/Editor: E..Rezagah, Roya
Rezagah, Roya
Author Heading: E..Rezagah, Roya
Rezagah, Roya
Publication Date: 2014-09
Publication Date (W3CDTF): 2014-09
Alternative Title: Efficient architecture of cellular networks for dynamic cell structuring with large-scale base station cooperation
Degree grantor/type: 東京工業大学
Date Granted: 2014-09-25
Dissertation Number: 甲第9629号
Degree Type: 博士（工学）
Text Language Code: eng
Subject Heading: Cellular networks
heterogeneous networks (HetNet)
coordinated multipoint (CoMP)
dynamic cell structuring
Target Audience: 一般
Note (General): This research focuses on a heterogeneous wireless cellular network consisting of small cells within macro cells. The thesis aims to provide a development direction to utilize the network resources to the utmost extent. It is started with random non coordinated networks. The main limiting factor in a non-coordinated network is the interference. Then step by step, more advanced schemes are added to the network to reduce or eliminate the interference and improve network's performance. At first, full coordination is added to the network. It is shown that although such a coordination improves the system rate in some scenarios, it cannot fit to the dynamics of the traffic demand in a cellular network. Therefore, a more advanced scheme is introduced. In this scheme dynamic coverage control of BSs alongside large scale clusters direct idle network resources from sparse areas to the congestion areas. This method is especially beneficial when there are some distinct congestion zones in the network. This scheme can achieve several times higher capacity than the previous schemes. In addition, by introducing rank adaptation in the large scale clusters the system rate can be increased even more. Then gain in the system rate can be more than 100 percent depending on the scenario and environment. This huge gain is a motivation for further study on the aspects and issues of the practical implementation. The last part of the thesis discusses the required measurement and signaling scheme for the practical implementation based on the concept of C/U splitting and signaling schemes that are currently considered in 3GPP standardization. This can insure the feasibility of the scheme.
identifier:oai:t2r2.star.titech.ac.jp:50246549
Format (IMT): application/pdf
Source: fulltext
http://t2r2.star.titech.ac.jp/rrws/file/CTT100675130/ATD100000413/Thesis_11D51189_Roya_E_REZAGAH.pdf
Access Restrictions: インターネット公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 東京工業大学 : 東京工業大学リサーチリポジトリ