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Atsushi OKAMURA
An Equalization of PN-DSTBC for Concatenating with Spectral Precoding
Kanako YAMAGUCHI
Nicolas GRESSET
Hiroshi NISHIMOTO
Akihiro OKAZAKI
Hiroyasu SANO
Shusaku UMEDA
Kaoru TSUKAMOTO
Atsushi OKAMURA
Publication:
Publication Date:
2019/03/01
Vol.
E102-A
No.
3
pp.
544-552
Type of Manuscript:
PAPER
Category:
Mobile Information Network and Personal Communications
Keyword:
extremely high frequency
,
frequency diversity
,
spatial diversity
,
spectral precoding
,
DSTBC
,
Summary
|
Full Text:PDF
(2.7MB)
NL-BMD: Nonlinear Block Multi-Diagonalization Precoding for High SHF Wide-Band Massive MIMO in 5G
Hiroshi NISHIMOTO
Akinori TAIRA
Hiroki IURA
Shigeru UCHIDA
Akihiro OKAZAKI
Atsushi OKAMURA
Publication:
Publication Date:
2017/08/01
Vol.
E100-B
No.
8
pp.
1215-1227
Type of Manuscript:
Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category:
Wireless Communication Technologies
Keyword:
5G
,
massive MIMO
,
MU-MIMO
,
inter-user interference
,
precoding
,
nonlinear block multi-diagonalization
,
Summary
|
Full Text:PDF
(8.1MB)
Separation of Mixtures of Complex Sinusoidal Signals with Independent Component Analysis
Tetsuo KIRIMOTO
Takeshi AMISHIMA
Atsushi OKAMURA
Publication:
IEICE TRANSACTIONS on Communications
Publication Date:
2011/01/01
Vol.
E94-B
No.
1
pp.
215-221
Type of Manuscript:
PAPER
Category:
Wireless Communication Technologies
Keyword:
independent component analysis
,
fourth cumulant
,
complex sinusoidal signals
,
separation performance
,
radar
,
communication
,
Summary
|
Full Text:PDF
(605.2KB)
Feedforward Power Amplifier Control Method Using Weight Divided Adaptive Algorithm
Kenichi HORIGUCHI
Atsushi OKAMURA
Masatoshi NAKAYAMA
Yukio IKEDA
Tadashi TAKAGI
Osami ISHIDA
Publication:
IEICE TRANSACTIONS on Electronics
Publication Date:
2003/08/01
Vol.
E86-C
No.
8
pp.
1494-1500
Type of Manuscript:
Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category:
Keyword:
normalized least mean square
,
adaptive algorithm
,
feedforward
,
power amplifier
,
microwave
,
Summary
|
Full Text:PDF
(695KB)
An Algorithm for Improving the Signal to Noise Ratio of Noisy Complex Sinusoidal Signals Using Sum of Higher-Order Statistics
Teruyuki HARA
Atsushi OKAMURA
Tetsuo KIRIMOTO
Publication:
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date:
1998/09/25
Vol.
E81-A
No.
9
pp.
1955-1957
Type of Manuscript:
LETTER
Category:
Digital Signal Processing
Keyword:
higher-order statistics
,
fourth-order cumulants
,
signal detection
,
signal to noise ratio
,
Summary
|
Full Text:PDF
(181.7KB)