ササキ　リョウヘイ   佐々木　亮平    所属   コンピュータサイエンス学部 コンピュータサイエンス学科    職種   助教
言語種別	英語
発行・発表の年月	2019/09
形態種別	国際会議論文
査読	査読あり
標題	Channel Estimation Using Matrix Factorization Based Interpolation for OFDM Systems
執筆形態	共著
掲載誌名	IEEE Vehicular Technology Conference (VTC2019-Fall)
掲載区分	国外
出版社・発行元	IEEE
著者・共著者	N. Suga, R. Sasaki, and T. Furukawa
概要	This paper studies a novel channel estimation method using matrix factorization based interpolation. The interpolation can be assumed as a matrix completion problem which is well studied in the field of collaborative filtering. It is known that a low-rank matrix can be accurately interpolated using matrix factorization technique. In fact, the channel frequency response is a linear combination of some Fourier basis, and channel matrix (channel frequency response in the time-frequency domain) is low rank. The computer simulation shows the high accuracy of the proposed method compared with the conventional methods.