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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 7 of 7  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
IT, ISEC, RCC, WBS 2022-03-10
11:10
Online Online A Study on Initial Acquisition of WHCDM Signals with Roll-Off Pulse Shaping
Ojiro Komatsu, Toshiharu Kojima (UEC)
WHCDM (Walsh-Hadamard Code Division Multiplexing) is suitable for helicopter satellite communications, where rotor blade... [more] IT2021-96 ISEC2021-61 WBS2021-64 RCC2021-71
pp.84-88
IT, ISEC, RCC, WBS 2022-03-10
11:35
Online Online An Initial Acquisition Scheme with Improved Carrier Frequency Offset Tolerance for MWHCDM
Yota Yamamura, Toshiharu Kojima (UEC)
MWHCDM (modified Walsh-Hadamard code division multiplexing) is suitable for helicopter satellite communications, where r... [more] IT2021-97 ISEC2021-62 WBS2021-65 RCC2021-72
pp.89-94
SANE, SAT
(Joint)
2021-02-19
15:20
Online Online Statistical Channel Estimation Scheme for Helicopter Satellite Communication
Masafumi Sai, Toshiharu Kojima (UEC) SAT2020-39
In helicopter satellite communications, the rotor blades periodically block the communication channel. This periodic
ch... [more]
SAT2020-39
pp.54-57
CS, CAS 2018-03-13
09:45
Fukuoka Nishijin Plaza, Kyushu University A low complexity blind SLM scheme for PAPR reduction in LDPC coded OFDM system
Hiroki Shimada, Toshiharu Kojima (UEC) CAS2017-147 CS2017-101
Selected mapping (SLM) is one of peak-to-average power ratio (PAPR) reduction schemes for orthogonal frequency division ... [more] CAS2017-147 CS2017-101
pp.81-86
SAT, SANE
(Joint)
2018-02-22
09:55
Yamaguchi The Yamaguchi Chamber of Commerce and Industry A Novel AFC Scheme for WHCDM Based on Inter-Code Interference Due to Carrier Frequency Offset
Yuki Kanamaru, Toshiharu Kojima (UEC) SAT2017-58
In helicopter satellite communications, the periodic channel blockage due to rotor blades and time-varying Doppler shift... [more] SAT2017-58
pp.13-18
SAT, SANE
(Joint)
2018-02-22
12:30
Yamaguchi The Yamaguchi Chamber of Commerce and Industry A Simplified Initial Acquisition Scheme for WHCDM Based on Distribution Asymmetry of Demultiplexed Signal Energy
Yuki Nagashima, Toshiharu Kojima (UEC) SAT2017-59
In helicopter satellite communications, the periodic channel blockage due to rotor blades is the most important problem ... [more] SAT2017-59
pp.19-24
IN, RCS
(Joint)
2006-05-19
13:55
Tokyo   Combined STBC and Cyclic Delay Diversity for MISO MC-CDMA downlink schemes.
Lahiru Karunarathna, Toshiharu Kojima (Univ. of Electro-Comm.) RCS2006-29
We propose a novel MISO MC-CDMA downlink scheme to achieve higher diversity orders even in fully loaded systems. Widely ... [more] RCS2006-29
pp.67-72
 Results 1 - 7 of 7  /   
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