Takashi SEKIGUCHI

Radio Resource Management and Power Control for W-CDMA Uplink with High Data Rate Packet Transmission
Yoshitaka HARA Kuniyuki SUZUKI Koji KANEKO Takashi SEKIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2102-2109
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
code division multiaccess, radio resource management, power control, packet transmission, 
 Summary | Full Text:PDF(954.8KB)
CMA Adaptive Array Antennas Using Analysis and Synthesis Filter Banks
Takashi SEKIGUCHI Yoshio KARASAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/08/25
Vol. E81-A  No. 8  pp. 1570-1577
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
adaptive arrays, adaptive signal processing, filter banks, array processing, digital beamforming, optical signal processing antennas, 
 Summary | Full Text:PDF(597KB)
The Software Antenna: A New Concept of Kaleidoscopic Antenna in Multimedia Radio and Mobile Computing Era
Yoshio KARASAWA Takashi SEKIGUCHI Takashi INOUE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/08/25
Vol. E80-B  No. 8  pp. 1214-1217
Type of Manuscript:  Special Section LETTER (Special Issue on Mobile Computing)
Category: 
Keyword: 
mobile radio, software antenna, reconfigurable FPGA, algorithm diversity, 
 Summary | Full Text:PDF(332.1KB)
InGaAs/GaAs Tetrahedral-Shaped Recess Quantum Dot(TSR-QD)Technology
Yuji AWANO Yoshiki SAKUMA Yoshihiro SUGIYAMA Takashi SEKIGUCHI Shunichi MUTO Naoki YOKOYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/11/25
Vol. E79-C  No. 11  pp. 1557-1561
Type of Manuscript:  Special Section PAPER (Special Issue on Quantum Effect Devices and Their Fabrication Technologies)
Category: 
Keyword: 
nanometer technology, quantum dot, MOVPE, cathodoluminescence, photoluminescence, self-organization, 
 Summary | Full Text:PDF(716.3KB)
Extraction of Inphase and Quadrature Components from Oversampled Bandpass Signals Using Multistage Decimator with BPFs and Its Performance Evaluation
Takashi SEKIGUCHI Tetsuo KIRIMOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/09/25
Vol. E77-A  No. 9  pp. 1457-1465
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from the 8th Digital Signal Processing Symposium)
Category: Multirate Signal Processing
Keyword: 
digital filters, analog to digital converters, oversampling, quadrature detection, signal to noise ratio, Hilbert transformers, 
 Summary | Full Text:PDF(658.2KB)