Junichiro HAGIWARA

Radio Techniques Incorporating Sparse Modeling
Toshihiko NISHIMURA Yasutaka OGAWA Takeo OHGANE Junichiro HAGIWARA 
Publication:   
Publication Date: 2021/03/01
Vol. E104-A  No. 3  pp. 591-603
Type of Manuscript:  INVITED SURVEY PAPER
Category: Digital Signal Processing
Keyword: 
sparse modeling, compressed sensing, sparse Bayesian learning, DOA estimation, channel estimation, 
 Summary | Full Text:PDF(1.9MB)
Real-Time Joint Channel and Hyperparameter Estimation Using Sequential Monte Carlo Methods for OFDM Mobile Communications
Junichiro HAGIWARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8  pp. 1655-1668
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC2015)
Category: Wireless Communication Technologies
Keyword: 
OFDM, channel estimation, parameter estimation, particle filters, Kalman filters, 
 Summary | Full Text:PDF(7.2MB)
An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation
Junichiro HAGIWARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 537-548
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
OFDM, channel estimation, state space model, Kalman filter, frequency correlation, 
 Summary | Full Text:PDF(2MB)
Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced
Kengo YAGYU Takeshi NAKAMORI Hiroyuki ISHII Mikio IWAMURA Nobuhiko MIKI Takahiro ASAI Junichiro HAGIWARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3335-3345
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
LTE-Advanced, carrier aggregation, component carrier management, control overhead, 
 Summary | Full Text:PDF(2MB)
Peak Reduction Improvement in Iterative Clipping and Filtering with a Graded Band-Limiting Filter for OFDM Transmission
Toshiyuki MATSUDA Shigeru TOMISATO Masaharu HATA Hiromasa FUJII Junichiro HAGIWARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1362-1365
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
OFDM transmission, PAPR, iterative signal processing, 
 Summary | Full Text:PDF(398.6KB)