Presentation 2016-08-22
Soft Decision Decoding Method in Overload MIMO Receiver applied to The Lattice Reduction-Aided with a Virtual Channel
Ryosuke Sawada, Satoshi Denno,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper proposes a soft decision decoding receiver in overload MIMO-OFDM(Multiple-Input Multiple-Output - Orthogonal Frequency-Division Multiplexing) in consideration of the high-speed transmission of the downlink. Proposed receiver performs rotation matrix estimated and demodulation using the LR-MMSE with a virtual channel for each subcarrier. It is possible to hard decision demodulation of a high performance in overload MIMO. Moreover, it can be selected to reduce the amount of calculation by changing the size of the rotation matrix used in the virtual channel. In addition, calculate the soft information of the demodulated signal. Then, input to the soft decision Viterbi decoder. In this paper, we present the transmission performance of the proposed method by comparing the soft decision and hard decision.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Overloaded MIMO / Virtual channel / Lattice Reduction-aided / Soft decision
Paper # SRW2016-34
Date of Issue 2016-08-15 (SRW)

Conference Information
Committee SRW
Conference Date 2016/8/22(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Nihon Univ. (Tsudanuma Campus)
Topics (in Japanese) (See Japanese page)
Topics (in English) WLAN, etc.
Chair Hiroshi Harada(Kyoto Univ.)
Vice Chair Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.)
Secretary Masafumi Kato(NTT) / Satoshi Denno(NICT)
Assistant Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.)

Paper Information
Registration To Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Soft Decision Decoding Method in Overload MIMO Receiver applied to The Lattice Reduction-Aided with a Virtual Channel
Sub Title (in English)
Keyword(1) Overloaded MIMO
Keyword(2) Virtual channel
Keyword(3) Lattice Reduction-aided
Keyword(4) Soft decision
1st Author's Name Ryosuke Sawada
1st Author's Affiliation Okayama University(Okayama Univ.)
2nd Author's Name Satoshi Denno
2nd Author's Affiliation Okayama University(Okayama Univ.)
Date 2016-08-22
Paper # SRW2016-34
Volume (vol) vol.116
Number (no) SRW-187
Page pp.pp.7-11(SRW),
#Pages 5
Date of Issue 2016-08-15 (SRW)