Presentation 2009/11/19
Characteristic Evaluation of a Virtual MIMO System in an Uplink Channel in Dynamic Fading Environments
Tatsuya ITO, Yasutaka OGAWA, Toshihiko NISHIMURA, Takeo OHGANE,
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Abstract(in English) A higher frequency band is considered to be used for future mobile communications for broadband transmission. However, propagation loss increases at a higher frequency band. The transmission will be difficult in an uplink channel because of limited transmit power of terminals. To solve the problem, cooperative communication has drawn attention. We have proposed a virtual MIMO system where neighboring terminals cooperate each other and form transmit beams as a distributed antenna system. In this paper, we examine frequency offset estimation performance and BER versus transmit power in dynamic fading environments. It has been clarified that the advantage of the virtual MIMO system decreases in dynamic fading environments. The reason for this is considered to be that transmit parameters cannot be determined properly because the channel at transmission time is not obtained exactly.
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Keyword(in English) Cooperative communication / Virtual MIMO / Uplink channel / Frequency offset / Pass loss / Transmit power
Paper # A・P2009-123,RCS2009-145
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Conference Date 2009/11/19(1days)
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Registration To Antennas and Propagation (A・P)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Characteristic Evaluation of a Virtual MIMO System in an Uplink Channel in Dynamic Fading Environments
Sub Title (in English)
Keyword(1) Cooperative communication
Keyword(2) Virtual MIMO
Keyword(3) Uplink channel
Keyword(4) Frequency offset
Keyword(5) Pass loss
Keyword(6) Transmit power
1st Author's Name Tatsuya ITO
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Yasutaka OGAWA
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Toshihiko NISHIMURA
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
4th Author's Name Takeo OHGANE
4th Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2009/11/19
Paper # A・P2009-123,RCS2009-145
Volume (vol) vol.109
Number (no) 304
Page pp.pp.-
#Pages 6
Date of Issue