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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 92件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SAT 2019-10-10
16:10
Fukuoka JR HAKATA CITY {10F RoomA+B} Comparative Study of Digital Pre-Distortion for 32APSK by Hardware Experiments and Numerical Calculations
Masaaki Kojima, Yuki Koizumi, Yoichi Suzuki, Hisashi Sujikai (NHK)
The satellite transmission standard for 4K/8K ultra high definition television (UHDTV) services was recommended in ITU-R... [more] SAT2019-53
pp.31-35
RCS, SAT
(Joint)
2019-08-22
09:50
Aichi Nagoya University 8K120Hz Transmission Experiment with 21GHz-band through Broadcast Satellite BSAT-4a
Yuki Koizumi, Yoichi Suzuki, Shinya Abe, Kazunori Yokohata, Hisashi Sujikai (NHK), Susumu Nakazawa, Osamu Yamazaki (B-SAT)
NHK conducted a wide-band transmission experiment with the 21GHz-band through broadcasting satellite BSAT-4a at NHK STRL... [more] SAT2019-19
pp.13-17
IN, NS
(Joint)
2019-03-05
11:10
Okinawa Okinawa Convention Center A Study on Edge Computing Architecture for Location-based Service in NDN
Yoshiki Kurihara, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
This paper addresses edge computing for location data which is obstained by Internet of Things (IoT) devices. A key moti... [more] IN2018-118
pp.205-210
IN, NS
(Joint)
2019-03-05
11:30
Okinawa Okinawa Convention Center A Study on a DoS Resilient Publish/Subscribe Protocol in NDN-based Ad-Hoc Networks
Yasunaga Murai, Junji Takemasa, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Asynchronous group communications are useful for delivering messages among members who perform mission critical tasks, s... [more] IN2018-119
pp.211-216
IN, NS
(Joint)
2019-03-05
11:50
Okinawa Okinawa Convention Center A Study on High-speed NDN Forwarding Based on Fine-grained Mutual Exclusion for PIT Processing
Junji Takemasa, Yutaro Yamada, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
 [more] IN2018-120
pp.217-222
SANE, SAT
(Joint)
2019-02-14
10:50
Kagoshima Tanegashima Island 21-GHz Wide-band satellite transmission experiment with BSAT-4a broadcasting satellite
Yoichi Suzuki, Yuki Koizumi, Shinya Abe, Kazunori Yokohata (NHK), Susumu Nakazawa, Osamu Yamazaki (B-SAT), Hisashi Sujikai (NHK)
To achieve the wide-band transmission for full-specification 8K Super Hi-Vision and Diverse Vision, a wide-band transmis... [more] SAT2018-76
pp.109-114
IN 2019-01-21
13:40
Aichi WINC AICHI Mitigating Looped Replacement of Large Objects by Leveraging Packet-level Cache Admission in ICN Networks
Yoji Yamamoto, Junji Takemasa, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Increase in the size of content objects due to emergence of bandwidth-intensive applications, such as video on demand, l... [more] IN2018-73
pp.7-12
IA, IN
(Joint)
2018-12-14
11:10
Hiroshima Hiroshima Univ. Privacy Protection against a Semi-honest Anonymizer for Location-Based Services
Kentaro Kita, Yoshiki Kurihara, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Location-based services, which provide content based on locations which are specified by users, are becoming essential f... [more] IN2018-67
pp.49-54
SAT 2018-10-12
13:45
Overseas KARI Performance Comparison of Digital Pre-Distortion Techniques over Satellite Channel
Masaaki Kojima, Yuki Koizumi, Yoichi Suzuki, Hisashi Sujikai (NHK)
Aiming for practical usage of 32APSK in 4K/8K satellite broadcasting, we have developed a digital pre-distortion techniq... [more] SAT2018-54
pp.67-71
AP, SANE, SAT
(Joint)
2018-07-18
14:30
Hokkaido Hokkaido Univ. Prompt Report on Wide-band Transmission Experiment with 21-GHz band Broadcasting Satellite in NHK STRL OPEN HOUSE 2018
Yoichi Suzuki, Hisashi Sujikai, Yuki Koizumi, Masafumi Nagasaka, Masaaki Kojima, Atsushi Iwasaki, Shoji Tanaka (NHK), Susumu nakazawa, Osamu Yamazaki (B-SAT)
 [more] SAT2018-14
pp.19-23
AP, SANE, SAT
(Joint)
2018-07-19
09:20
Hokkaido Hokkaido Univ. Prototype and Evaluation Performance of the Transmitter and Receiver with Set-Partitioning 64APSK Coded Modulation
Yuki Koizumi, Yoichi Suzuki, Masaaki Kojima, Hisashi Sujikai (NHK)
 [more] SAT2018-17
pp.37-42
AP, SANE, SAT
(Joint)
2018-07-19
09:45
Hokkaido Hokkaido Univ. Performance Improvement by Digital Pre-Distortion Technique for 32APSK over Satellite Transmission
Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Hisashi Sujikai (NHK)
4K/8K test broadcasting by satellite started on August 1st 2016, and 4K/8K commercial broadcasting will start on Decembe... [more] SAT2018-18
pp.43-48
SR 2018-05-25
10:00
Tokyo Tokyo big sight [Technology Exhibit] Performance Evaluation of Dynamic Spectrum Sharing in an Urban Environment
Tatsuya Yoshioka, Nobuo Suzuki (ATR), Masaki Kitsunezuka, Kazuaki Kunihiro (NEC), Shota Yamashita, Koji Yamamoto (Kyoto Univ.), Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
The 5th generation mobile communication systems require more frequency band to achieve various user’s requirements for i... [more] SR2018-14
pp.81-86
NS, IN
(Joint)
2018-03-02
10:00
Miyazaki Phoenix Seagaia Resort A Study on Secure Emergency Message Delivery in NDN Networks
Kai Ryu, Kentaro Kita, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Emergency communication such as 119 calls cannot be provided if congestion occurs in telephone networks due to a disaste... [more] NS2017-205
pp.215-220
NS, IN
(Joint)
2018-03-02
10:50
Miyazaki Phoenix Seagaia Resort Modeling and Analyzing Large Content Caching for Information Centric Networking
Yoji Yamamoto, Junji Takemasa, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Increase in the size of content due to emergence of bandwidth-intensive applications, such as video on demand, leads to ... [more] IN2017-122
pp.195-200
NS, IN
(Joint)
2018-03-02
13:30
Miyazaki Phoenix Seagaia Resort An Analysis on Cache Algorithm for CS of Fast PC-based NDN Router
Junji Takemasa, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
 [more] IN2017-130
pp.243-248
NS, IN
(Joint)
2018-03-02
15:00
Miyazaki Phoenix Seagaia Resort A study on location-based rendezvous to IoT communications.
Yoshiki Kurihara, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Since data obtained by Internet of Things (IoT) devices is correlated with their locations, location-based services
(LB... [more]
NS2017-233
pp.369-374
SAT, SANE
(Joint)
2018-02-23
13:20
Yamaguchi The Yamaguchi Chamber of Commerce and Industry Comparison of Transmission Performance for 32APSK over TWTA and LTWTA
Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Hisashi Sujikai, Shoji Tanaka (NHK)
4K/8K test broadcasting for satellite have been started since August 2016. 4K/8K broadcasting services for satellite wil... [more] SAT2017-68
pp.65-68
IA, IN
(Joint)
2017-12-15
15:00
Hiroshima Hiroshima City Univ. A Study on Location Privacy for Multicast-Based Services
Kentaro Kita, Kai Ryu, Yuki Koizumi, Toru Hasegawa (Osaka Univ.)
Since Internet of Things (IoT) data generally correlates with its location where it is sensed, location-based forwarding... [more] IN2017-63
pp.103-108
SAT 2017-10-27
15:30
Okinawa Okinawa Cellular Telephone Company Estimation Technique for Non-linear Characteristics for Satellite Transponder
Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Hisashi Sujikai, Shoji Tanaka (NHK)
We previously proposed a digital pre-distortion technique that has transmitter-built-in satellite transponder characteri... [more] SAT2017-55
pp.131-136
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