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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 23件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
09:10
Osaka I-Site Nanba(Osaka) Improvement Effect of Adaptive Control CRE for Multicarrier HetNets using 3.4 GHz
Kento Fujisawa, Hiroyuki Otsuka (Kogakuin Univ.) RCS2019-109
Heterogeneous Network (HetNet) using multiple carrier frequencies are expected to increase system capacity in fifth-gene... [more] RCS2019-109
pp.45-49
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
09:35
Osaka I-Site Nanba(Osaka) A study on Modulation and Coding Scheme in Multicarrier HetNets using 28 GHz Band
Fumiya Kemmochi, Hiroyuki Otsuka (Kogakuin Univ.) RCS2019-110
Millimeter wave (mmWave) technology is expected to achieve higher data rates in fifth-generation (5G) mobile systems. We... [more] RCS2019-110
pp.51-55
RCS 2018-06-20
14:30
Nagasaki Nagasaki University Interference Tolerance for Fiber-optic Inband Relaying with Simultaneous Transmission
Hiroki Utatsu (Kogakuin Univ.), Jun Mashino, Satoshi Suyama (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2018-41
Relaying is a key technology to improve cell-edge performance and/or provide wider radio coverage. We have proposed fibe... [more] RCS2018-41
pp.37-42
RCS 2018-06-22
10:00
Nagasaki Nagasaki University Considerations for Superposed Modulation Combined with QPSK and 256-QAM in NOMA.
Koki Senda, Hiroyuki Otsuka (Kogakuin Univ.) RCS2018-66
Non-orthogonal multiple access (NOMA) is a potential candidate for the 5th-generation mobile systems (5G). In NOMA, two ... [more] RCS2018-66
pp.185-189
RCS 2018-06-22
10:10
Nagasaki Nagasaki University BER Performance of OFDM-based 1024/4096-QAM in Multipath Fading Conditions
Ruxiao Tian, Hiroyuki Otsuka (Kogakuin Univ.) RCS2018-67
Higher-order modulation is promising technique of 5th-generation mobile systems to increase data rate within a limited b... [more] RCS2018-67
pp.191-194
AP, RCS
(Joint)
2017-11-08
17:10
Fukuoka Fukuoka University The effect of 3D beamforming on backhaul link in relaying networks
Ryota Nakao (Kogakuin Univ.), Jun Mashino, Satoshi Suyama (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2017-219
Relaying is a key technology used to improve cell-edge user throughput and/or provide wider coverage. Three-dimensional ... [more] RCS2017-219
pp.81-86
RCS 2017-06-23
15:10
Okinawa Ishigaki Shoukou Kaikan Proposal of CQI Table Switching Control for Cell Range Expansion in HetNet
Norihiro Naganuma, Kai Osawa, Hiroyuki Otsuka (Kogakuin Univ.) RCS2017-90
Higher-order modulation such as 256-quadrature amplitude modulation (QAM) is a key technology to increase data rates wit... [more] RCS2017-90
pp.239-244
RCS 2017-06-23
15:35
Okinawa Ishigaki Shoukou Kaikan Throughput Performance of 256-QAM using different types of MCS in small cells
Kai Osawa, Norihiro Naganuma, Hiroyuki Otsuka (Kogakuin Univ.) RCS2017-91
Higher-order modulation is a key technology to increase data rates within a limited bandwidth. This paper describes the ... [more] RCS2017-91
pp.245-250
RCS, SR, SRW
(Joint)
2017-03-03
17:50
Tokyo Tokyo Institute of Technology The Design of Small Cell Based on Macro/Micro Cells Parameters and Consideration for256-QAM to Small Cells
Kazuya Fujiwara, Kai Osawa, Norihiro Naganuma, Hiroyuki Otsuka (Kogakuin Univ.) RCS2016-337
This paper presents the design of small cells based on the parameters of existing micro and/or micro cell systems, and p... [more] RCS2016-337
pp.271-276
SAT, RCS
(Joint)
2016-08-19
14:55
Miyagi Tohoku Gakuin University Parameter Optimization for Enhanced Adaptive Control CRE in Heterogeneous Networks
Sho Nakazawa, Hiroyuki Otsuka (Kogakuin Univ.) RCS2016-147
We propose an enhanced cell range expansion (CRE) technique in a heterogeneous network (HetNet) to increase the system c... [more] RCS2016-147
pp.101-106
NS, RCS
(Joint)
2015-12-18
11:50
Ehime Matsuyama Community Center DUR Performance of Fiber-optic Inband Relaying as parameters of carrier frequency and optical fiber length
Youhei Hanzawa, Sho Nakazawa (Kogakuin Univ.), Takahiro Kubo, Takahiro Asai, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2015-266
We have proposed fiber-optic relaying to improve cell edge performance, and have discussed the design methods. Especiall... [more] RCS2015-266
pp.133-138
NS, RCS
(Joint)
2015-12-18
16:30
Ehime Matsuyama Community Center Adaptive Control CRE with Consideration for both Ratios of UEs Connected to Pico and Received SINR distribution for UEs
Sho Nakazawa (Kogakuin Univ.), Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2015-279
 [more] RCS2015-279
pp.207-212
RCS 2015-06-26
14:35
Hokkaido Hokkaido Univ. Considerations for New Entries of OFDM with 256- and 1024-QAM in Mobile Systems
Mitsutoshi Nakamura, Hiroyuki Otsuka (Kogakuin Univ.) RCS2015-97
This paper presents the transmission performance of OFDM using a higher order modulation scheme such as 256- and 1024-QA... [more] RCS2015-97
pp.299-303
RCS 2015-06-26
15:00
Hokkaido Hokkaido Univ. Throughput Performance of Small Cell Designed by the Use of Micro Cell Parameters
Sho Nakazawa (Kogakuin Univ.), Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2015-98
this paper presents the design approach for small sells based on the parameters of micro sell system, and provides its u... [more] RCS2015-98
pp.305-309
RCS, NS
(Joint)
2014-12-18
13:15
Mie Iseshi-Kanko-Bunka-Kaikan (Mie) Performance Evaluation for HetNet as parameters of CSO on CRE and Pico-eNB Transmission Power under Higher Traffic Condition
Shingo Matsuoka (Kogakuin Univ), Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ) RCS2014-233
We discuss about heterogeneous network (HetNet) to increase system capacity in LTE–Advanced and beyond. Cell Range... [more] RCS2014-233
pp.79-84
RCS 2014-06-17
15:50
Okinawa Okinawa-ken Seinenkaikan (Naha) Performance Analysis of Cooperative Control between CSO on CRE and Transmission Power for Pico-eNB in HetNet
Shingo Matsuoka (Kogakuin Univ), Kazuaki Takeda, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ) RCS2014-52
We discuss about heterogeneous network (HetNet) to increase system capacity on LTE–Advanced. Cell Range Expansion ... [more] RCS2014-52
pp.113-118
RCS 2014-06-18
10:29
Okinawa Okinawa-ken Seinenkaikan (Naha) EVM Impact on Transmission Performance of OFDM with 256/1024-QAM
Hiroki Iwasaki, Shingo Matsuoka, Hiroyuki Otsuka (Kogakuin Univ.) RCS2014-67
 [more] RCS2014-67
pp.203-206
NS, IN
(Joint)
2014-03-07
10:20
Miyazaki Miyazaki Seagia A New Load Balancing Scheme by Using Modified Betweenness Centralities in WDM Networks with Wavelength Converters
Yutaro Nagata, Koichi Asatani, Hiroyuki Otsuka (Kogakuin Univ.) IN2013-163
In WDM networks, a node requests an optical path, selects a wavelength along with a candidate route, and establishes an... [more] IN2013-163
pp.117-122
RCS, NS
(Joint)
2013-12-18
13:30
Kagawa Sunport Hall Takamatsu Performance on Interference between Backhaul and Access Links in Fiber-optic Relaying
Naohiro Tanoi (Kogakuin Univ.), Takahiro Kubo, Takahiro Asai, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2013-210
This paper presents a new type of fiber-optic relaying that extends the coverage of mobile networks heavily shadowed are... [more] RCS2013-210
pp.23-28
RCS, NS
(Joint)
2013-12-18
14:20
Kagawa Sunport Hall Takamatsu Parameter Optimization for Adaptive Control CRE in HetNet
Katsunori Kikuchi (Kogakuin Univ.), Kazuaki Takeda, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2013-212
Heterogeneous networks (HetNet) are expected to handle increasing demand for mobile network capacity and has been mainly... [more] RCS2013-212
pp.35-40
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