講演名 2012-03-07
Multiuser MIMO Modulation Transparency in 3GPP LTE-A : A Capacity Perspective
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抄録(和)
抄録(英) In this work, we consider the modulation-transparency issue related to the 3GPP-LTE debate to enhance multi-user multiple-input multiple-output (MU-MIMO) support in the upcoming LTE-A release of the 3GPP cellular standard. MU-MIMO is called modulation-transparent (or simply transparent, T-MIMO) when no signalling is provided to the receiver to inform it about the modulation scheme of the co-scheduled receivers. It is called non-transparent (NT-MIMO) otherwise. Such signalling is provided to the receiver to help it better deal with interference. There appears to be a disagreement within 3GPP on whether the capacity gains of modulation non-transparency are significant enough to be worth the increased signaling. Thus, we derive in this report closed-form capacity expressions so as to assess the expected gains of modulation non-transparency. Our results suggest that while substantial capacity gains can be expected from DCI non-transparency, such benefits are conditional upon sufficiently accurate CSI at the receiver's side.
キーワード(和)
キーワード(英) Multiuser MIMO / 3GPP LTE-A / modulation transparency / maximum likelihood detection / multiuser interference / wireless communications
資料番号 RCS2011-321
発行日

研究会情報
研究会 RCS
開催期間 2012/2/29(から1日開催)
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開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
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幹事補佐氏名(和)
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講演論文情報詳細
申込み研究会 Radio Communication Systems (RCS)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) Multiuser MIMO Modulation Transparency in 3GPP LTE-A : A Capacity Perspective
サブタイトル(和)
キーワード(1)(和/英) / Multiuser MIMO
第 1 著者 氏名(和/英) / Oussama Souihli
第 1 著者 所属(和/英)
Graduate School of Science and Technology, Keio University
発表年月日 2012-03-07
資料番号 RCS2011-321
巻番号(vol) vol.111
号番号(no) 451
ページ範囲 pp.-
ページ数 6
発行日