Presentation 2016-07-20
Differential MIMO Spatial Multiplexing Employing PADM Based on Channel Prediction for Fast Time-Varying Channels
Toshiki Mori, Takuma Yamagishi, Akinobu Murayama, Hiroshi Kubo,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper proposes a demodulation scheme based on channel prediction for differential multiple-input multiple-output (MIMO) spatial multiplexing employing per transmit antenna differential mapping (PADM). As PADM is one of differential space-time trellis coding (DSTTC), it has to employ per-survivor processing (PSP) based on the Viterbi algorithm (VA) for its demodulation. Therefore, PADM has excellent tracking performance on fast time-varying channels. However, aiming at higher frequency efficiency, PADM for higher modulation index suffers from the following two disadvantages: (1) poor sensitivity performance; (2) large computational complexity. In order to solve the disadvantages of (1) and (2), this paper employs spatial multiplexing structure and state reduction algorithm for the VA, i.e., decision-feedback sequence estimation (DFSE), respectively. Finally, in the case of 4bps/Hz and 2 receive antennas, computer simulation results confirm that the proposed scheme has excellent BER performance on fast time-varying channels in the case of the maximum Doppler frequency normalized by symbol rate of 4%.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multiple-Input Multiple-Output / Differential Space-Time Coding / Spatial Multiplexing / Per-Survivor Processing / Channel Prediction
Paper # RCS2016-100
Date of Issue 2016-07-13 (RCS)

Conference Information
Committee RCS / RCC / ASN / NS / SR
Conference Date 2016/7/20(3days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device),etc.
Chair Hidekazu Murata(Kyoto Univ.) / Shinsuke Hara(Osaka City Univ.) / Hiroshi Tohjo(NTT) / Hideki Tode(Osaka Pref. Univ.) / Takeo Fujii(Univ. of Electro-Comm.)
Vice Chair Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Kazunori Hayashi(Kyoto Univ.) / Ryu Miura(NICT) / Hiroo Sekiya(Chiba Univ.) / Hiraku Okada(Nagoya Univ.) / Satoru Yamano(NEC) / Yoshikatsu Okazaki(NTT) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.)
Secretary Satoshi Denno(Toshiba) / Yukitoshi Sanada(NTT DoCoMo) / Eisuke Fukuda(Kagawa Univ.) / Kazunori Hayashi(Hokkaido Univ.) / Ryu Miura(Kanagawa Inst. of Tech.) / Hiroo Sekiya(NTT) / Hiraku Okada(Kyushu Inst. of Tech.) / Satoru Yamano(NTT) / Yoshikatsu Okazaki(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi / Suguru Kameda
Assistant Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Toshinori Kagawa(NICT) / Kentaro Kobayashi(Nagoya Univ.) / Yuichi Igarashi(Hitachi) / Katsuhiro Naito(Aichi Inst. of Tech.) / Kiyohiko Hattori(NICT) / Hiroshi Fujita(Fujitsu Labs.) / Takuro Yonezawa(Keio Univ.) / Shohei Kamamura(NTT) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Reliable Communication and Control / Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Network Systems / Technical Committee on Smart Radio
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Differential MIMO Spatial Multiplexing Employing PADM Based on Channel Prediction for Fast Time-Varying Channels
Sub Title (in English)
Keyword(1) Multiple-Input Multiple-Output
Keyword(2) Differential Space-Time Coding
Keyword(3) Spatial Multiplexing
Keyword(4) Per-Survivor Processing
Keyword(5) Channel Prediction
1st Author's Name Toshiki Mori
1st Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
2nd Author's Name Takuma Yamagishi
2nd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
3rd Author's Name Akinobu Murayama
3rd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
4th Author's Name Hiroshi Kubo
4th Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
Date 2016-07-20
Paper # RCS2016-100
Volume (vol) vol.116
Number (no) RCS-147
Page pp.pp.35-40(RCS),
#Pages 6
Date of Issue 2016-07-13 (RCS)