イケガミ　テツシ   Ikegami Tetsushi   井家上　哲史    所属   明治大学  理工学部    職種   専任教授
言語種別	英語
発行・発表の年月	2021/12
形態種別	学術雑誌
査読	査読あり
標題	GSC-based equalizer with QR decomposition for CP-free MIMO-OFDM systems
執筆形態	共著(筆頭者以外)
掲載誌名	IEICE Communications Express
掲載区分	国内
出版社・発行元	一般社団法人 電子情報通信学会
巻・号・頁	10(12),pp.899-904
著者・共著者	Kizawa Masakazu, Ikegami Tetsushi
概要	<p>In CP(Cyclic Prefix)-Free OFDM systems, an occurrence of IBI(Inter-Block-Interference) is inevitable due to the loss of CP. Since it deteriorates the system performance, a GSC(Generalized Sidelobe Canceller)-based equalizer for SIMO(MIMO)-OFDM systems have been proposed. In the equalizer, a set of basis of null space of channel matrix has to be found. In this letter, we propose a GSC equalizer using QR decomposition for CP-Free MIMO-OFDM systems, where the reduced complexity maximum likelihood detection by QR M-algorithm(QRM-MLD) can be applied after the equalization. By computer simulations, we show the BER performance can be improved as compared to the conventional GSC equalizer with the V-BLAST detection.</p>
DOI	10.1587/comex.2021col0017
NAID	130008123832