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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| WBS | 2015-10-09 10:45 |
Tokyo | Waseda Univ. | Semi-Blind Estimation of Sparse Channels in OFDM Systems Tomoya Saito, Teruyuki Miyajima (Ibaraki Univ.)  WBS2015-28 |
In this article, we consider semi-blind estimation of sparse channels in OFDM systems. The proposed semi-blind estimatio... [more] | WBS2015-28 pp.7-12 |
| WBS | 2015-10-09 13:00 |
Tokyo | Waseda Univ. | [Poster Presentation]
Design and Performance Evaluation of Amplify-and-Forward Relays with Delay Hiroki Takahashi, Teruyuki Miyajima (Ibaraki Univ.) WBS2015-32 |
In this paper, we propose a new relaying scheme which introduces delay and amplification at relay stations for single-ca... [more] | WBS2015-32 pp.31-36 |
| RCC, ASN, RCS, NS, SR (Joint) |
2015-07-30 10:30 |
Nagano | JA Naganoken Bldg. | [Poster Presentation]
Performance evaluation of filter-and-forward beamforming networks in the presence of IBI Satoshi Nagai, Teruyuki Miyajima (Ibaraki Univ) RCC2015-25 NS2015-45 RCS2015-108 SR2015-26 ASN2015-35 |
In this article, we propose a filter design to suppress inter-block interference (IBI) in OFDM-based filter-and-forward ... [more] | RCC2015-25 NS2015-45 RCS2015-108 SR2015-26 ASN2015-35 pp.41-46(RCC), pp.45-50(NS), pp.43-48(RCS), pp.59-64(SR), pp.81-86(ASN) |
| WBS, MICT | 2015-07-21 12:30 |
Nara | Nara Institute of Science and Technology | [Poster Presentation]
Further Results on Filter-and-Forward Beamforming in Cognitive Radio Networks Yang Song, Teruyuki Miyajima (Ibaraki Univ.) WBS2015-17 MICT2015-21 |
[more] | WBS2015-17 MICT2015-21 pp.25-30 |
| AP, RCS (Joint) |
2014-11-13 10:50 |
Yamagata | Yamagata University, Yonezawa Campus | A calculation model of shadowing loss caused by a moving human body and its validation by experiments Ting Wang, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ) RCS2014-211 |
As link quality is affected by shadowing of a moving human body in 60GHz band. we need a countermeasure technique such a... [more] | RCS2014-211 pp.85-90 |
| AP, RCS (Joint) |
2014-11-13 13:40 |
Yamagata | Yamagata University, Yonezawa Campus | [Invited Talk]
Research and Development of Multi-band Multi-mode Wireless Systems for Higher Frequency Bands Utilization Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.), Yuji Kuwahara, Yasutaka Uramoto (Panasonic) AP2014-142 RCS2014-213 |
[more] | AP2014-142 RCS2014-213 p.79(AP), p.97(RCS) |
| RCS | 2014-10-17 15:15 |
Kanagawa | Keio Univ. | Phase-Only CMA Based PAPR Reduction in MIMO-OFDM without Side Information Hiromichi Nashimoto, Teruyuki Miyajima (Ibaraki Univ.) RCS2014-188 |
[more] | RCS2014-188 pp.177-182 |
| RCS | 2014-10-17 15:55 |
Kanagawa | Keio Univ. | Retransmission Diversity Scheme Using Multiple Transmit Antennas for Single Carrier Transmission Shingo Nakamura, Teruyuki Miyajima (Ibaraki Univ.) RCS2014-190 |
In this article, we consider retransmission schemes to obtain a diversity gain in single-carrier transmissions.We propos... [more] | RCS2014-190 pp.189-194 |
| WBS | 2014-10-03 16:00 |
Akita | Akita Prefectural University | Filter Design for Filter-and-Forward Relay Transmission in the Presence of IBI Satoshi Nagai, Teruyuki Miyajima (Ibaraki Univ) WBS2014-38 |
In relay transmissions based on orthogonal frequency division multiplexing (OFDM), inter-block interference (IBI) occurs... [more] | WBS2014-38 pp.33-38 |
| RCS | 2014-06-17 14:20 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Considerations on signal processing for 60GHz band WLAN service area discovery using diversity techniques Sho Wada, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) RCS2014-48 |
A multi band frequency cooperative wireless systems, which utilizes microwave band (2.4/5GHz) WLAN in combination with m... [more] | RCS2014-48 pp.93-98 |
| ISEC, IT, WBS | 2014-03-10 10:10 |
Aichi | Nagoya Univ., Higashiyama Campus | Effect of IQ Imbalance on Channel Shortening in OFDM System Xi Zhang, Teruyuki Miyajima (Ibaraki Univ) IT2013-61 ISEC2013-90 WBS2013-50 |
In OFDM systems, channel shortening techniques are useful to overcome inter-block interference caused by the delayed wav... [more] | IT2013-61 ISEC2013-90 WBS2013-50 pp.49-54 |
| RCS, SR, SRW (Joint) |
2014-03-04 09:15 |
Tokyo | Waseda Univ. | Experimental investigation of shadowing characteristics due to human body in 60GHz band WLAN Ting Wang, Tomofumi Ono, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ) SRW2013-45 |
Received signal power is drastically faded due to severe shadowing by human in 60GHz WLAN(Wireless LAN) and throughput p... [more] | SRW2013-45 pp.7-11 |
| RCS, SR, SRW (Joint) |
2014-03-04 09:40 |
Tokyo | Waseda Univ. | Diversity techniques to improve millimeter-wave WLAN service area prediction accuracy by using microwave signals Sho Wada, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) SRW2013-46 |
Millimeter wave (60GHz) WLAN has been drawing attention to achieve multi-Gbps ultra-high-speed transmission. However, th... [more] | SRW2013-46 pp.13-18 |
| RCS, SR, SRW (Joint) |
2014-03-04 10:05 |
Tokyo | Waseda Univ. | A Study on Microwave/Millimeter-Wave Frequency Cooperative ARQ System Shohei Koike, Teruyuki Miyajima, Masahiro Umehira, Shigeki Takeda, Kenichi Kagoshima (Ibaraki Univ.) SRW2013-47 |
In this paper, we consider multi-Gbps millimeter wave wireless LAN systems where shadowing causes serious performance d... [more] | SRW2013-47 pp.19-24 |
| RCS, SIP | 2014-01-24 16:05 |
Fukuoka | Kyushu Univ. | Temporal and frequency characteristics of shadowing by human body in 60GHz WLAN Tomofumi Ono, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) SIP2013-127 RCS2013-297 |
Moving human body causes significant shadowing resulting in a large propagation loss in 60GHz band ultra-high-speed mult... [more] | SIP2013-127 RCS2013-297 pp.247-252 |
| SRW | 2013-12-16 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Application of space diversity for millimeter wave WLAN service areaprediction by using microwave signals in multiband frequency cooperative wireless systems Gen Saito, Sho Wada, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) SRW2013-38 |
Milimeter(60GHz) band WLAN enables multi-Gbps transmission since 9GHz bandwidth is available for unlicensed use in 60GHz... [more] | SRW2013-38 pp.1-6 |
| RCS | 2013-10-17 15:30 |
Tokyo | Sophia Univ. | [Invited Lecture]
Multi-band Frequency Cooperative Wireless Systems for Ultra-high Capacity Wireless Networks Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) RCS2013-154 |
The number of wireless users such as cellular phone and wireless LAN is continuing to increase all over the world includ... [more] | RCS2013-154 pp.65-71 |
| SRW | 2013-06-17 13:00 |
Kanagawa | Fujitsu | Dynamic Shadowing characteristics of by Human Body based on Ray-tracing Simulations in Millimeter-wave WLAN Tomofumi Ono, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) SRW2013-15 |
In the ultra-high-speed millimeter wave band WLAN supporting several Gbps class transmission speed, as large diffraction... [more] | SRW2013-15 pp.19-24 |
| SRW | 2013-06-17 13:25 |
Kanagawa | Fujitsu | Service Area Estimation of Millimeter Wave WLAN by Using Microwave WLAN Signals for Frequency Cooperative Wireless Systems Sho Wada, Masahiro Umehira, Shigeki Takeda, Teruyuki Miyajima, Kenichi Kagoshima (Ibaraki Univ.) SRW2013-16 |
Standardization of multi-Gbit/s class WLAN using 60GHz band has been completed and its product development is underway. ... [more] | SRW2013-16 pp.25-30 |
| IT, ISEC, WBS | 2013-03-07 15:05 |
Osaka | Kwansei Gakuin Univ., Osaka-Umeda Campus | A Study on Sparse Channel Estimation in Single Carrier Communications Yuki Nishizawa, Teruyuki Miyajima (Ibaraki Univ.) IT2012-85 ISEC2012-103 WBS2012-71 |
It has been reported that when channel estimation performance is unsatisfactory when conventional estimation methods are... [more] | IT2012-85 ISEC2012-103 WBS2012-71 pp.149-154 |
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