Gagik MKRTCHYAN

Model Based Prediction of Uplink Multi-Path Fading Channel Response for Pre-Equalization in Mobile MC-CDMA Systems
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/02/01
Vol. E91-B  No. 2  pp. 446-458
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMA, pre-equalization, multi-path fading channel, model-based prediction method, ML estimation, 
 Summary | Full Text:PDF
Evolutional Algorithm Based Learning of Time Varying Multipath Fading Channels for Software Defined Radio
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3269-3273
Type of Manuscript:  Special Section LETTER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
evolutional algorithms, software-defined radio, time-varying multipath fading channel, dynamic learning systems, 
 Summary | Full Text:PDF
Doppler Spread Estimation Method for OFDM Signal Using Mean Square of Channel Impulse Response's Time Derivative
Gagik MKRTCHYAN Katsuhiro NAITO Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2961-2966
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
Doppler spread, OFDM, time varying multipath fading channel, 
 Summary | Full Text:PDF
Correction of OFDM Signal Form in Time Domain to Reduce ICI Due to the Doppler Spread and Carrier Frequency Offset
Gagik MKRTCHYAN Kazuo MORI Hideo KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 122-133
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)
Category: Interference Canceller
Keyword: 
OFDM, DFT, ICI, Doppler spread, carrier offset, 
 Summary | Full Text:PDF