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  1. 060 工学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems

http://hdl.handle.net/10191/30685
http://hdl.handle.net/10191/30685
8abad188-8f3e-4e2c-91ee-6fcf40d1b674
名前 / ファイル ライセンス アクション
E92-B_10_3206-3218.pdf E92-B_10_3206-3218.pdf (2.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-12-02
タイトル
タイトル A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems
タイトル
言語 en
タイトル A New User Selection Measure in Block Diagonalization Algorithm for Multiuser MIMO Systems
言語
言語 eng
キーワード
主題Scheme Other
主題 multiuser MIMO
キーワード
主題Scheme Other
主題 user selection
キーワード
主題Scheme Other
主題 block diagonalization
キーワード
主題Scheme Other
主題 channel capacity
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Kudo, Riichi

× Kudo, Riichi

WEKO 5601

Kudo, Riichi

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Takatori, Yasushi

× Takatori, Yasushi

WEKO 5602

Takatori, Yasushi

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Nishimori, Kentaro

× Nishimori, Kentaro

WEKO 5603

Nishimori, Kentaro

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Ohta, Atsushi

× Ohta, Atsushi

WEKO 5604

Ohta, Atsushi

Search repository
Kubota, Shuji

× Kubota, Shuji

WEKO 5605

Kubota, Shuji

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Mizoguchi, Masato

× Mizoguchi, Masato

WEKO 5606

Mizoguchi, Masato

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抄録
内容記述タイプ Abstract
内容記述 Multiuser — Multiple Input Multiple Output (MU-MIMO) techniques were proposed to increase spectrum efficiency; a key assumption was that the Mobile Terminals (MTs) were simple with only a few antennas. This paper focuses on the Block Diagonalization algorithm (BD) based on the equal power allocation strategy as a practical MU-MIMO technique. When there are many MTs inside the service area of the access point (AP), the AP must determine, at each time slot, the subset of the MTs to be spatially multiplexed. Since the transmission performance depends on the subsets of MTs, the user selection method needs to use the Channel State Information (CSI) obtained in the physical layer to maximize the Achievable Transmission Rate (ATR). In this paper, we clarify the relationship between ATR with SU-MIMO and that with MU-MIMO in a high eigenvalue channel. Based on the derived relationship, we propose a new measure for user selection. The new measure, the eigenvalue decay factor, represents the degradation of the eigenvalues in null space compared to those in SU-MIMO; it is obtained from the signal space vectors of the MTs. A user selection method based on the proposed measure identifies the combination of MTs that yields the highest ATR; our approach also reduces the computational load of user selection. We evaluate the effectiveness of user selection with the new measure using numerical formulations and computer simulations.
書誌情報 IEICE transactions on communications
en : IEICE transactions on communications

巻 E92-B, 号 10, p. 3206-3218, 発行日 2009-01
出版者
出版者 The Institute of Electronics, Information and Communication Engineers
ISSN
収録物識別子タイプ ISSN
収録物識別子 09168516
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10826261
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1587/transcom.E92.B.3206
権利
権利情報 Copyright(C)2009 IEICE
権利
権利情報 本文データは学協会の許諾に基づきEJサイトから複製したものである
著者版フラグ
値 publisher
異版である
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://www.ieice.org/jpn/trans_online/
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