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Measurement-Based Performance Evaluation of Coded MIMO-OFDM Spatial Multiplexing with MMSE Spatial Filtering in an Indoor Line-of-Sight Environment

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Title: Measurement-Based Performance Evaluation of Coded MIMO-OFDM Spatial Multiplexing with MMSE Spatial Filtering in an Indoor Line-of-Sight Environment
Authors: Nishimoto, Hiroshi Browse this author
Nishimura, Toshihiko Browse this author →KAKEN DB
Ohgane, Takeo Browse this author →KAKEN DB
Ogawa, Yasutaka Browse this author →KAKEN DB
Keywords: MIMO
OFDM
spatial multiplexing
MMSE spatial filtering
indoor channel measurement
line-of-sight environments
space-frequency diversity
Issue Date: 1-May-2008
Publisher: The Institute of Electronics, Information and Communication Engineers
Journal Title: IEICE Transactions on Communications
Volume: E91-B
Issue: 5
Start Page: 1648
End Page: 1652
Abstract: The MIMO system can meet the growing demand for higher capacity in wireless communication fields. So far, the authors have reported that, based on channel measurements, uncoded performance of narrowband MIMO spatial multiplexing in indoor line-of-sight (LOS) environments generally outperforms that in non-LOS (NLOS) ones under the same transmit power condition. In space-frequency coded MIMO-OFDM spatial multiplexing, however, we cannot expect high space-frequency diversity gain in LOS environments because of high fading correlations and low frequency selectivity of channels so that the performance may degrade unlike uncoded cases. In this letter, we present the practical performance of coded MIMO-OFDM spatial multiplexing based on indoor channel measurements. The results show that an LOS environment tends to provide lower space-frequency diversity effect whereas the MIMO-OFDM spatial multiplexing performance is still better in the environment compared with an NLOS environment.
Description: Letter
Rights: copyright©2008 IEICE
Relation: http://search.ieice.org/
Type: article
URI: http://hdl.handle.net/2115/42656
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 西本 浩

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