Presentation 2004/10/22
Frequency correlation characteristics due to antenna configurations in boradband MIMO transmission
Kentaro NISHIMORI, Nobuhiko TACHIKAWA, Yasushi TAKATORI, Riichi KUDO, Kouichi TSUNEKAWA,
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Abstract(in English) Recently, Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) has attracted much attention as a technology achieving high-speed wireless transmission with a limited bandwidth. However, since bit loading and adaptive modulation per sub-carrier should be employed according to the transmission quality of each sub-carrier in MIMO-OFDM, it is very important to understand the frequency correlation characteristics in broadband MIMO channels. This paper investigates the frequency correlation characteristics based on the antenna configuration for actual indoor MIMO channels. The results show that the frequency correlation of the channel capacity for the array antenna configured in the horizontal plane is significantly different compared to that configured in the vertical plane. Moreover, we propose a new cluster model that considers the antenna configuration in the horizontal or vertical plane to estimate the frequency correlation in broadband MIMO channels.
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Keyword(in English) MIMO / frequency correlation / antenna arrangement / OFDM / delay signals / angular spread
Paper # A・P2004-161,RCS2004-182
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Committee RCS
Conference Date 2004/10/22(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Frequency correlation characteristics due to antenna configurations in boradband MIMO transmission
Sub Title (in English)
Keyword(1) MIMO
Keyword(2) frequency correlation
Keyword(3) antenna arrangement
Keyword(4) OFDM
Keyword(5) delay signals
Keyword(6) angular spread
1st Author's Name Kentaro NISHIMORI
1st Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation()
2nd Author's Name Nobuhiko TACHIKAWA
2nd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
3rd Author's Name Yasushi TAKATORI
3rd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
4th Author's Name Riichi KUDO
4th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
5th Author's Name Kouichi TSUNEKAWA
5th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
Date 2004/10/22
Paper # A・P2004-161,RCS2004-182
Volume (vol) vol.104
Number (no) 399
Page pp.pp.-
#Pages 6
Date of Issue