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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| CAS, CS, SIP | 2009-03-02 16:00 |
Gifu | Nagaragawa Convention Center | Examination of Ishijima Method for Fading Phenomenon in HF Passing Through Ionosphere Yoshinori Satake, Takeshi Hashimoto (Univ. of Electro-Comm.)  CAS2008-116 SIP2008-179 CS2008-90 |
Because of the behavior that High-Frequency (HF) wave entering ionosphere will be reflected and return to the ground, HF... [more] | CAS2008-116 SIP2008-179 CS2008-90 pp.89-94 |
| RCS | 2008-08-27 09:00 |
Hokkaido | Hokkaido University | Generalized Detection for CS-CDMA/CP over Multipath Channels and Its Comparison with DS-CDMA Li Yue, Nalin S. Weerasinghe, Chenggao Han, Takeshi Hashimoto (Univ. of Electro-Comm.) RCS2008-53 |
Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) enables multiuser interference-free (MUI-free) transmissio... [more] |
RCS2008-53 pp.1-6 |
| RCS | 2008-08-28 11:40 |
Hokkaido | Hokkaido University | Improved Algorithm for Cancellation Carrier Optimization for the Suppression of the OFDM OOB Spectrum Takayuki Matsuura, Yasutaka Iida, Takeshi Hashimoto (UEC) RCS2008-77 |
Cancellation Carrier (CC) are known to be effective for suppressing the out-of-band (OOB) spectrum of an orthogonal freq... [more] | RCS2008-77 pp.145-150 |
| CS, SIP, CAS | 2008-03-07 10:15 |
Yamaguchi | Yamaguchi University | Confirm superiority in OFDM-OQAM on Time Varying Channels Ryota Yoshinaga, Takeshi Hashimoto (UEC) CAS2007-127 SIP2007-202 CS2007-92 |
OFDM-OQAM has a narrow subcarrier spectrum, the system employing OFDM-OQAM is expected to be more robust against Doppler... [more] | CAS2007-127 SIP2007-202 CS2007-92 pp.11-15 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-06 14:20 |
Kanagawa | YRP | Constellation Rotated OSDM Systems and Its Performance over Rayleigh Fading Channels Chenggao Han, Takeshi Hashimoto (Univ. of Electro-Comm.), Naoki Suehiro (Univ. of Tsukuba) RCS2007-222 |
OFDM technique are widely used in communication systems which work under multi-path environment e.g. ADSL, WLAN and DVB ... [more] | RCS2007-222 pp.217-222 |
| IT | 2007-07-19 14:35 |
Hyogo | Kobe Univ. | Proposal for Time-Varying Channel with Fast Phase Variation and Verification of the Following Capability of Turbo-Equalization Hiroyuki Kinjyo, Suguru Watanabe, Takeshi Hashimoto (UEC) IT2007-11 |
In underwater acoustic transmission, severe fading and ISI occur. It is expected that Turbo-Equalization is effective th... [more] | IT2007-11 pp.13-18 |
| IT | 2007-07-19 15:15 |
Hyogo | Kobe Univ. | On achievability of users strength in optical PPM-CDMA. Yoshinori Satake, Takeshi Hashimoto (UEC) IT2007-12 |
Shalaby introduced users strength that provides a measure for the maximum number of users that can be accomodated simmul... [more] | IT2007-12 pp.19-23 |
| IT | 2007-07-19 15:40 |
Hyogo | Kobe Univ. | Bluetooth-Based WPAN formation algorithm which paid attention to residual energy Yasutaka Iida, Takeshi Hashimoto (UEC) IT2007-13 |
In Bluetooth-Based WPAN(BT-WPAN), the selection of master and bridge nodes has a significant impact on the network lifet... [more] | IT2007-13 pp.25-29 |
| NS, RCS (Joint) |
2007-07-19 13:30 |
Hokkaido | Kitami Institute of Tech. | Study of OSDM over Quasi-Static Channel Chenggao Han (Univ. of Electro-comm.), Naoki Suehiro (Univ. of Tsukuba), Takeshi Hashimoto (Univ. of Electro-comm.) RCS2007-35 |
Since that practical communication systems are usually communicated under multi-path environment, it becomes very hard t... [more] | RCS2007-35 pp.37-42 |
| IT, ISEC, WBS | 2007-03-15 16:30 |
Gunma | Gunma Univ. (Kiryu Campus) | efficient frequency usage system Naoki Suehiro (Univ. of Tsukuba), Chenggao Han (Univ. of Electro-comm.), Rongzhen Jin (Univ. of Tsukuba), Takeshi Hashimoto (Univ. of Electro-comm.) |
[more] | IT2006-65 ISEC2006-120 WBS2006-62 pp.31-34 |
| RCS, MoNA, WBS, SR, MW (Joint) |
2007-03-09 11:05 |
Kanagawa | YRP | Implementation and performance of SD-method which based on DFT transform Chenggao Han (Univ. of Electro-comm.), Naoki Suehiro (Univ. of Tsukuba), Takeshi Hashimoto (Univ. of Electro-comm.) RCS2006-273 |
Since high frequency usage efficiency, OFDM technique are widely used in wireless communication systems e.g. wireless LA... [more] | RCS2006-273 pp.155-158 |
| WBS, IT, ISEC | 2006-03-16 11:35 |
Aichi | Nagoya Univ. | Performance Analysis of Space-Time CDMA Systems over MIMO Rayleigh Fading Channels Dianjun Chen, Takeshi Hashimoto (Univ. of Electro-Comm.) |
For an AWGN channel, indecomposable error vector (IEV) is introduced to tighten the BER (bit error rate) upper bound... [more] |
IT2005-92 ISEC2005-149 WBS2005-106 pp.165-169 |
| WBS | 2005-12-16 10:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Probability of Slot-States in PPM-CDMA transmission over a diffuse channel Trinh The Huynh, Takeshi Hashimoto (UEC) |
In pulse position modulation(PPM) CDMA over a diffuse link, the time-dispersion in the channel receivered waveform cause... [more] | WBS2005-56 pp.1-6 |
| IT | 2005-11-20 16:50 |
Okinawa | Riazan Sea-Park Hotel | [Invited Talk]
Space-time CDMA Dianjun Chen, Takeshi Hashimoto, Nalin S. Weerasinghe (The Univ. of Electro-Comm.) |
[more] | IT2005-63 pp.27-38 |
| IT | 2005-09-27 15:50 |
Fukushima | Aizu Univ. | Binary ZCZ Code from an M-sequence and Its Application to CS-CDMA/CP Nalin S. Weerasinghe, Takeshi Hashimoto (Univ. of Electro-Comm.) |
[more] | IT2005-56 pp.31-36 |
| IT | 2005-09-27 16:15 |
Fukushima | Aizu Univ. | On The Behavior in The Tail of Sphere Decoding's Computational Complexity Distribution Prabowo Wisnu Hari, Dianjun Chen, Takeshi Hashimoto (UEC) |
Recent reports on digital communications have shown that the use of Sphere Decoding(SD) in multiple antenna system can a... [more] | IT2005-57 pp.37-42 |
| RCS, AP | 2004-10-28 14:55 |
Niigata | Niigata University | On the effect of Nyquist filter for the performance of an OFDM system employing time domain channel estimation Kenji Hiraki, Takeshi Hashimoto (UEC) |
[more] | AP2004-152 RCS2004-173 pp.117-122 |
| IT | 2004-07-29 15:45 |
Chiba | Tokyo Univ. (Kashiwa) | On the performance of multi-input receivers in an infrared diffuse communication Shinichi Yasue, Takeshi Hashimoto (UEC) |
In the diffuse optical wireless system , the receiver receives the transmitted signal through a number of different path... [more] | IT2004-28 pp.59-64 |
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