Presentation 2014-07-10
Doppler-Resistant Channel Estimation Method Using RLS Algorithm for MIMO-OFDM Systems
Masahito UMEHARA, Hiroshi TSUTSUI, Yoshikazu MIYANAGA,
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Abstract(in English) Frequency deviation by the Doppler shift in the multipath environment deteriorates the demodulation accuracy significantly. In this paper, we introduce the recursive least squares (RLS) algorithm which is one of the adaptive algorithms for MIMO detector of multiple-input multiple-output - orthogonal frequency division multiplexing (MIMO-OFDM) systems and propose a channel estimation method which has a Doppler resistance. In addition, we focus on the preamble structure of transmission frames to improve further demodulation accuracy. As a result, we report that the channel estimation accuracy is improved utilizing the extension high throughput - long training field (HT-LTF).
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Keyword(in English) MIMO-OFDM System / RLS / Doppler shift / HT-LTF
Paper # CAS2014-26,VLD2014-35,SIP2014-47,MSS2014-26,SIS2014-26
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Committee SIS
Conference Date 2014/7/2(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Doppler-Resistant Channel Estimation Method Using RLS Algorithm for MIMO-OFDM Systems
Sub Title (in English)
Keyword(1) MIMO-OFDM System
Keyword(2) RLS
Keyword(3) Doppler shift
Keyword(4) HT-LTF
1st Author's Name Masahito UMEHARA
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Hiroshi TSUTSUI
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Yoshikazu MIYANAGA
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2014-07-10
Paper # CAS2014-26,VLD2014-35,SIP2014-47,MSS2014-26,SIS2014-26
Volume (vol) vol.114
Number (no) 126
Page pp.pp.-
#Pages 6
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