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Title:
受信装置
Document Type and Number:
Japanese Patent JP4598079
Kind Code:
B2
Abstract:
A receiving apparatus according to the present invention is a receiving apparatus that demodulates a modulated signal received via a plurality of antennas, and includes a transmission-channel estimating unit (22) that estimates a transmission-channel response matrix in accordance with the quantity of antennas and the quantity of symbols based on a received signal vector; a hard-decision sequence estimating unit (21) that estimates a hard decision sequence based on the received signal vector and the transmission-channel response matrix, and outputs the hard decision sequence and likelihood information ± corresponding to the hard decision sequence; and a soft-decision value creating unit (23-1 to 23-K) that creates likelihood information ² corresponding to a sequence that a specific bit in the hard decision sequence is inversed by using the received signal vector, a transmission-channel response matrix reconstructed by reducing the dimension of the transmission-channel response matrix, and the hard decision sequence, and creates a soft decision value of the hard decision sequence based on the likelihood information ² and the likelihood information ±.

Inventors:
Higashi Naka Masatsugu
Application Number:
JP2007538675A
Publication Date:
December 15, 2010
Filing Date:
September 11, 2006
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
H04J99/00; H04B1/707; H04B7/08; H04J11/00
Other References:
墨井健二 他,SDを適用したターボ符号化MIMO-SDMの繰り返し復号における演算量削減に関する検討,電子情報通信学会技術研究報告,2005年 2月23日,RCS2004-331,vol.104,No.678,P.43-48
本庄克成 他,MIMOシステムにおけるMMSE/OSDを併用した低演算量MLD信号検出法,電子情報通信学会技術研究報告,2004年 5月14日,RCS2004-60,Vol.104,No.63,P.25-30
関宏之 他,OFCDM MIMO多重におけるシンボルレプリカ候補削減型QR分会ーMLDに適した軟判定ターボ復号の尤度情報生成法,電子情報通信学会技術研究報告,2004年 2月25日,RCS2003-314,Vol.103,No.680,P.67-72
東中雅嗣,MIMOシステムにおける同一チャネル干渉除去に関する検討,2005年電子情報通信学会通信ソサイエィ大会講演論文集1,2005年 9月 7日,B-5-13,P.413
東中雅嗣 他,演算量削減最尤判定法を用いたMIMOシステムにおける軟判定値生成に関する検討,電子情報通信学会技術研究報告,2005年10月13日,RCS2005-91,Vol.105,No.356,P.37-42
Attorney, Agent or Firm:
Hiroaki Sakai