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| 講演名 | 2014-01-24 11:35 Proposal of Channel Estimation Method for OFDM Based Analogue Network Coding in Higher Time-varying Fading Channel ○Tanairat Mata・Katsuhiro Naito・Kazuo Mori（Mie Univ.）・Pisit Boonsrimuang（KMITL）・Hideo Kobayashi（Mie Univ.）  SIP2013-116 RCS2013-286 |
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| 抄録 | （和） | Broadband Analog Network Coding (ANC) based on OFDM has been widely investigated to increase capacity of bi-directional relay communications. The broadband ANC based on OFDM technique is required to estimate channel frequency responses (CFRs) between both user terminals (UTs) and a relay station (RS) precisely so as to remove the self-information data from the received signal and to demodulate the other user?s information data with frequency domain equalization. Many channel estimation methods have been proposed for the OFDM based broadband ANC. However bit error rate (BER) performance of these methods would be degraded relatively in higher time-varying fading channels. To solve this problem, this paper proposes a CFR estimation method which can achieve better BER performance with keeping higher transmission efficiency even in higher time-varying fading channels. The salient features of proposed CFR estimation method are to enable the estimation of combined CFR at the UT for both channels between the UTs and RS by using scattered pilot subcarriers and to enable the demodulation of information data without feedback information of CFR estimated from the RS. This paper presents various simulation results in the higher time-varying fading channels to demonstrate the effectiveness of proposed CFR estimation method for the OFDM based broadband ANC. |
| （英） | Broadband Analog Network Coding (ANC) based on OFDM has been widely investigated to increase capacity of bi-directional relay communications. The broadband ANC based on OFDM technique is required to estimate channel frequency responses (CFRs) between both user terminals (UTs) and a relay station (RS) precisely so as to remove the self-information data from the received signal and to demodulate the other user?s information data with frequency domain equalization. Many channel estimation methods have been proposed for the OFDM based broadband ANC. However bit error rate (BER) performance of these methods would be degraded relatively in higher time-varying fading channels. To solve this problem, this paper proposes a CFR estimation method which can achieve better BER performance with keeping higher transmission efficiency even in higher time-varying fading channels. The salient features of proposed CFR estimation method are to enable the estimation of combined CFR at the UT for both channels between the UTs and RS by using scattered pilot subcarriers and to enable the demodulation of information data without feedback information of CFR estimated from the RS. This paper presents various simulation results in the higher time-varying fading channels to demonstrate the effectiveness of proposed CFR estimation method for the OFDM based broadband ANC. | |
| キーワード | （和） | ANC / OFDM / bi-directional / CFR / time-varying fading channel / / / |
| （英） | ANC / OFDM / bi-directional / CFR / time-varying fading channel / / / | |
| 文献情報 | 信学技報, vol. 113, no. 386, RCS2013-286, pp. 181-186, 2014年1月. | |
| 資料番号 | RCS2013-286 | |
| 発行日 | 2014-01-16 (SIP, RCS) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | SIP2013-116 RCS2013-286 |
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| 研究会情報 | |
| 研究会 | RCS SIP |
| 開催期間 | 2014-01-23 - 2014-01-24 |
| 開催地（和） | 九州大学 |
| 開催地（英） | Kyushu Univ. |
| テーマ（和） | 無線通信のための信号処理および一般 |
| テーマ（英） | Signal Processing for Wireless Systems, etc. |
| 講演論文情報の詳細 | |
| 申込み研究会 | RCS |
| 会議コード | 2014-01-RCS-SIP |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Proposal of Channel Estimation Method for OFDM Based Analogue Network Coding in Higher Time-varying Fading Channel |
| サブタイトル（英） | |
| キーワード(1)（和/英） | ANC / ANC |
| キーワード(2)（和/英） | OFDM / OFDM |
| キーワード(3)（和/英） | bi-directional / bi-directional |
| キーワード(4)（和/英） | CFR / CFR |
| キーワード(5)（和/英） | time-varying fading channel / time-varying fading channel |
| キーワード(6)（和/英） | / |
| キーワード(7)（和/英） | / |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | Tanairat Mata / Tanairat Mata / |
| 第1著者 所属（和/英） | Mie University (略称： 三重大) Mie University (略称： Mie Univ.) |
| 第2著者 氏名（和/英/ヨミ） | Katsuhiro Naito / Katsuhiro Naito / |
| 第2著者 所属（和/英） | Mie University (略称： 三重大) Mie University (略称： Mie Univ.) |
| 第3著者 氏名（和/英/ヨミ） | Kazuo Mori / Kazuo Mori / |
| 第3著者 所属（和/英） | Mie University (略称： 三重大) Mie University (略称： Mie Univ.) |
| 第4著者 氏名（和/英/ヨミ） | Pisit Boonsrimuang / Pisit Boonsrimuang / |
| 第4著者 所属（和/英） | King Mongkut's Institute of Technology Ladkrabang (略称： KMITL) King Mongkut's Institute of Technology Ladkrabang (略称： KMITL) |
| 第5著者 氏名（和/英/ヨミ） | Hideo Kobayashi / Hideo Kobayashi / |
| 第5著者 所属（和/英） | Mie University (略称： 三重大) Mie University (略称： Mie Univ.) |
| 講演者 | 第1著者 |
| 発表日時 | 2014-01-24 11:35:00 |
| 発表時間 | 25分 |
| 申込先研究会 | RCS |
| 資料番号 | SIP2013-116, RCS2013-286 |
| 巻番号（vol） | vol.113 |
| 号番号（no） | no.385(SIP), no.386(RCS) |
| ページ範囲 | pp.181-186 |
| ページ数 | 6 |
| 発行日 | 2014-01-16 (SIP, RCS) |
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