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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 17 of 17  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2015-04-17
12:10
Oita Yufuin, Yufugoukan A Study on Small Cell Selection Method Considering the Traffic Load in Heterogeneous Networks
Kazuya Moriwaki, Toshiaki Yamamoto, Hailan Peng, Yasuhiro Suegara (KDDI R&D Labs.) RCS2015-15
The use of small cell deployments in the heterogeneous networks (HetNet) environment is considered a promising approach ... [more] RCS2015-15
pp.77-82
SR 2014-10-30
15:50
Overseas I2R, Singapore [Requested Talk] Millimeter-wave based LTE/WiGig Heterogeneous Networks: Small Cell Search Technique and Tightly Coupled Interworking Architecture
Hailan Peng, Toshiaki Yamamoto, Yasuhiro Suegara (KDDI R&D Labs.) SR2014-76
Heterogeneous networks (HetNet) with different radio access technologies have been deployed to support a wide range of c... [more] SR2014-76
pp.95-102
RCS 2014-06-18
15:30
Okinawa Okinawa-ken Seinenkaikan (Naha) Evaluation of Energy Efficient Inter-frequency Small Cell Search Scheme using Radio Frequency Fingerprint in Millimeter-wave Heterogeneous Networks
Hailan Peng, Toshiaki Yamamoto, Yasuhiro Suegara (KDDI R&D Labs.) RCS2014-76
Deployment of small cells with ultra wideband using a higher carrier frequency over the traditional macro cells operated... [more] RCS2014-76
pp.257-262
RCS, NS
(Joint)
2013-12-19
14:30
Kagawa Sunport Hall Takamatsu [Invited Lecture] Self Optimization Technologies in SON for LTE/LTE-Advanced
Satoshi Konishi, Toshiaki Yamamoto (KDDI Labs.) NS2013-145 RCS2013-233
It is observed that mobile traffic exponentially increases in recent years. In cellular systems such as Long Term Evolut... [more] NS2013-145 RCS2013-233
pp.67-72(NS), pp.161-166(RCS)
RCS, SAT
(Joint)
2013-08-30
15:15
Nagano Shinshu Univ. Evaluation of Mobility Performance on Small Cell Deployments in LTE/LTE-Advanced Heterogeneous Networks
Toshiaki Yamamoto, Satoshi Konishi (KDDI Labs.) RCS2013-139
 [more] RCS2013-139
pp.93-97
NS, RCS
(Joint)
2012-12-13
11:10
Ehime Ehime Univ. A Study of LTE Mobility Load Balancing Scheme in Various Traffic Environments
Toshiaki Yamamoto, Satoshi Konishi (KDDI Labs.) RCS2012-190
 [more] RCS2012-190
pp.41-46
RCS, NS, USN
(Joint)
2012-07-19
14:10
Iwate Iwate Univ. Mobility Load Balancing Scheme based on Cell Reselection in LTE Systems
Toshiaki Yamamoto, Satoshi Konishi (KDDI Labs.) RCS2012-81
 [more] RCS2012-81
pp.37-42
USN, AN, MoNA
(Joint)
2010-01-22
09:20
Shizuoka Actcity Hamamatsu A Proposal of Adaptive Traffic Route Control in QoS Provisioning for Cognitive Radio Technology with Heterogeneous Wireless Systems
Toshiaki Yamamoto, Tetsuro Ueda, Sadao Obana (ATR) MoMuC2009-65
 [more] MoMuC2009-65
pp.63-68
RCS, AN, MoNA, SR
(Joint)
2009-03-04
14:55
Kanagawa YRP A Study of the Effect of Power, Timing, and Frequency Offset Difference on Multi-Site Cooperative MIMO Systems
Toshiaki Yamamoto, Hisato Iwai, Tetsuro Ueda, Sadao Obana (ATR) RCS2008-225
 [more] RCS2008-225
pp.77-82
SR 2009-01-23
10:55
Kyoto Kyoto University Supporting Multihomed Mobile Nodes Connecting to Heterogeneous Wireless Systems in Hierarchical Mobile IPv6 Networks
Morihiko Tamai, Kengo Sakai, Toshiaki Yamamoto, Akio Hasegawa, Tetsuro Ueda, Sadao Obana (ATR) SR2008-80
Due to widespread deployment of wireless communication infrastructures, mobile terminals which have multiple wireless in... [more] SR2008-80
pp.75-82
SR 2007-11-27
15:40
Hiroshima Hirishima international univ. A Reduction Method of Information Overhead for QoS Route Control and Throughput Evaluation in Cognitive Wireless Access Networks
Toshiaki Yamamoto, Jong-Ok Kim, Akira Yamaguchi, Sadao Obana (ATR) SR2007-63
 [more] SR2007-63
pp.113-118
NS, CS, IN
(Joint)
2007-09-21
15:30
Miyagi Tohoku University Network Load Balancing Technique for QoS route control in Cognitive Wireless Access Networks
Toshiaki Yamamoto, Jong-Ok Kim, Akira Yamaguchi, Sadao Obana (ATR) NS2007-74
 [more] NS2007-74
pp.107-112
NS, CS, IN
(Joint)
2007-09-21
15:50
Miyagi Tohoku University Application-Aware Traffic Splitting over Cognitive Multi-Access Networks
Jong-Ok Kim, Toshiaki Yamamoto, Akira Yamaguchi, Sadao Obana (ATR) NS2007-75
We consider next generation multi-access cognitive networks, where WiMAX and WiFi links are set up at the same time. In ... [more] NS2007-75
pp.113-118
SR 2007-07-26
14:00
Kanagawa   [Technology Exhibit] Research and Development Activities on Cognitive Radio Technology -- Routing Technology for Cognitive Radio Access Network --
Akira Yamaguchi, Toshiaki Yamamoto, Jong-Ok Kim, Yasuhisa Takizawa, Sadao Obana (ATR) SR2007-22
Various wireless systems will co-exist in the future mobile access network. So, a terminal with various wireless interfa... [more] SR2007-22
pp.13-16
MoNA, IPSJ-MBL 2007-05-17
10:55
Okinawa Okinawa-seinen-kaikan An Experimental Study on Channel Quality for QoS Route Control in Cognitive Wireless Access Networks
Toshiaki Yamamoto, Jong-Ok Kim, Akira Yamaguchi, Sadao Obana (ATR) MoMuC2007-6
Various wireless communication systems are now being developed according to various users’ needs. For example, the 3rd g... [more] MoMuC2007-6
pp.27-32
RCS, AP, WBS, SR, MW, MoNA
(Joint)
2006-03-02
11:20
Kanagawa YRP A Receiving Method for an OFDM signal with Rotational Symbol Mapping
Toshiaki Yamamoto, Noriaki Miyazaki, Hiroyasu Ishikawa, Toshinori Suzuki (KDDI Labs.)
We propose the rotational code-multiplexed OFDM (R-OFDM) scheme. In the scheme, modulation symbols are mapped onto the s... [more] RCS2005-205
pp.163-168
RCS, AP, WBS, MW, MoNA 2005-03-04
14:50
Kanagawa Yokosuka Research Park A study on optimal transmit power control algorithm for subcarrier adaptive modulation
Toshiaki Yamamoto, Hiroyasu Ishikawa, Toshinori Suzuki (KDDI R&D Labs.)
In the multicarrier transmission systems, the subcarrier adaptive modulation is widely studied where the modulation sche... [more] WBS2004-136 AP2004-317 RCS2004-404 MoMuC2004-187 MW2004-314
pp.85-90
 Results 1 - 17 of 17  /   
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