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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| NS, ASN, RCC, RCS, SR (Joint) |
2017-07-19 08:50 |
Hokkaido | Hokkaido Univ. (Hokkaido) | Characterization of Contention Window for Success Prioritized CSMA/CA Takuma Yamamoto, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.)  ASN2017-12 |
With the recent expansion of demand for wireless LANs, the number of STAs connected to an AP will be increasing. CSMA/... [more] |
ASN2017-12 pp.1-7 |
| NS, ASN, RCC, RCS, SR (Joint) |
2017-07-19 09:15 |
Hokkaido | Hokkaido Univ. (Hokkaido) | A Mathematical Model of Access Control to Allocate Downlink Bandwidth in High-Density Wireless LAN Yuto Katayama, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) ASN2017-13 |
In the IEEE 802.11 standards used for wireless LANs, an access point (AP) and stations (STAs) have opportunities to tran... [more] | ASN2017-13 pp.9-14 |
| OCS, CS (Joint) |
2017-01-19 13:05 |
Fukuoka | Kyushu Sangyo University (Fukuoka) | Bipolar NRZ Coded Architecture for CAN FD and Its Performance Evaluation Takeyuki Shishido, Tatsuki Matsushita, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CS2016-64 |
Controller area network (CAN) is a communication standard that is widely employed for in-vehicle networks, and electroni... [more] | CS2016-64 pp.1-6 |
| CQ (2nd) |
2016-08-28 14:25 |
Ibaraki | Tsukubasan (Ibaraki) | On Relationship between Transmit Power and Consumed Power in Bluetooth LE Devices Kanji Takeda, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) |
Wireless sensor networks and IoT (Internet of Things) devices have been widespread. High energy efficiency is required ... [more] |
|
| CQ (2nd) |
2016-08-28 14:25 |
Ibaraki | Tsukubasan (Ibaraki) | On Downlink Bandwidth Guarantee for Wireless LAN with Uniform Backoff Algorithm Yuto Katayama, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) |
In the IEEE 802.11 standards used for wireless LANs, an access point (AP) and stations (STAs) have an opportunity to tra... [more] | |
| IT | 2016-07-29 13:10 |
Fukuoka | Seminar House, Fukuoka Univ. (Fukuoka) | A Consideration on Generator Matrix Structures for Space-Time Coded MIMO Radar Keisuke Kawahara, Daisuke Umehara, Koichiro Wakasugi (KIT) IT2016-32 |
We have already proposed a code construction scheme for MIMO radars based on a space-time coding and complementary codes... [more] | IT2016-32 pp.63-68 |
| IT | 2016-07-29 13:35 |
Fukuoka | Seminar House, Fukuoka Univ. (Fukuoka) | Four-Sequence Complementary Codes and their Generation for Radar Pulse Compressions Takuhiro Maeda, Daisuke Umehara, Koichiro Wakasugi (KIT) IT2016-33 |
Complementary codes are often used for radar pulse compressions.The well-known two-sequence complementary code has prim... [more] | IT2016-33 pp.69-74 |
| CQ | 2016-05-24 14:15 |
Fukuoka | Kyushu University (Fukuoka) | A Study on Back-off Time with Fair Two-way Throughput in Wireless LANs Yuto Katayama, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CQ2016-18 |
In the IEEE 802.11 standards used for wireless LANs, an access point(AP) and stations(STAs) have an opportunity to trans... [more] | CQ2016-18 pp.33-38 |
| CQ | 2016-05-24 16:35 |
Fukuoka | Kyushu University (Fukuoka) | Experimental Evaluation of HomePlug AV2 for In-vehicle Networks Akifumi Kawanishi, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CQ2016-23 |
With making in-vehicle applications diverse and high functional, it is required to enhance the data rate in-vehicle netw... [more] | CQ2016-23 pp.61-65 |
| CQ | 2016-05-25 16:10 |
Fukuoka | Kyushu University (Fukuoka) | Modeling Energy Consumption in Bluetooth LE While Connected Kanji Takeda, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CQ2016-31 |
Wireless sensor networks and IoT (Internet of Things) devices have been widespread. High energy efficiency is required... [more] |
CQ2016-31 pp.107-112 |
| IT | 2015-09-04 14:00 |
Ishikawa | Hakusan Shobutei (Ishikawa) | A Consideration on MIMO Radar Coding Based on Space-Time Coded Complementary Codes Daisuke Nose, Daisuke Umehara, Koichiro Wakasugi (KIT) IT2015-41 |
Pulse compression is used to improve the range resolution and detectability for various radars. MIMO radar needs to tran... [more] | IT2015-41 pp.43-48 |
| CS | 2015-07-02 09:45 |
Okinawa | Eef Information Plaza (Kumejima Is.) (Okinawa) | Power over Data Lines for CAN Using AMI Codes and Its Transmission Characteristics. Tatsuki Matsushita, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CS2015-10 |
In-vehicle networks interconnect electronic control units (ECUs) in vehicles. Controller area network (CAN) is one of s... [more] |
CS2015-10 pp.7-12 |
| CS | 2015-07-02 10:10 |
Okinawa | Eef Information Plaza (Kumejima Is.) (Okinawa) | Symbol Detection with OR Rule for CAN FD and Its Performance Evaluation Natsumi Sato, Daisuke Umehara, Koichiro Wakasugi (KIT) CS2015-11 |
Controller area network (CAN) is a communication standard for in-vehicle networks and is widely employed by a number of ... [more] | CS2015-11 pp.13-18 |
| OCS, CS (Joint) |
2015-01-22 14:35 |
Tokushima | Tokushima University (Tokushima) | Performance Evaluation of Multiple Access on HD-PLC for In-Vehicle Networks Kousuke Ohi, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst of Tech) CS2014-81 |
According to high functionality of automobiles, the number of electronic control units (ECU) mounted on an automobiles i... [more] | CS2014-81 pp.1-6 |
| OCS, CS (Joint) |
2015-01-22 15:00 |
Tokushima | Tokushima University (Tokushima) | Ringing Reduced CAN FD and Its Performance Evaluation Tomohiro Takahashi, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CS2014-82 |
In-vehicle networks are required to enhance bit rate because the electronic control unit (ECU) with controller area netw... [more] | CS2014-82 pp.7-12 |
| OCS, CS (Joint) |
2015-01-23 11:10 |
Tokushima | Tokushima University (Tokushima) | Performance of the Alamouti Coded OFDM in the Presence of Polarization Diversity Tomohito Seki, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.), Takanori Iwamatsu (FWL) CS2014-87 |
Dual-polarized transmission systems have a feature in frequency-efficiency, however, a diversity gain can be obtained by... [more] | CS2014-87 pp.37-40 |
| OCS, CS (Joint) |
2015-01-23 11:35 |
Tokushima | Tokushima University (Tokushima) | Performance of Transmission Power Control for Large-scale and Non-uniform Node Distribution Ad-hoc Networks Tetsuto Morishima, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CS2014-88 |
(Advance abstract in Japanese is available) [more] | CS2014-88 pp.41-45 |
| CS | 2014-11-07 10:45 |
Hokkaido | Shiretoko (Hokkaido) (Hokkaido) | A Study on Echo-MIMO Channel Estimation for PNC-DF Relaying Futa Kimura, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CS2014-71 |
Wireless relaying with physical-layer network coding (PNC) achieves frame exchange within half of time slots required co... [more] | CS2014-71 pp.105-110 |
| MoNA, CQ (Joint) |
2014-09-12 13:35 |
Miyagi | (Miyagi) | Performance Evaluation of Device Discovery Time in Bluetooth LE with Probabilistic Model Checking Yusuke Matsuo, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CQ2014-61 |
Pairing in Bluetooth consumes electric energy each device discovery. Since almost all Bluetooth peripherals are battery... [more] |
CQ2014-61 pp.123-128 |
| MoNA, CQ (Joint) |
2014-09-12 13:55 |
Miyagi | (Miyagi) | Influence Analysis of TX/RX IQ Imbalance for OFDM-4QAM Satoshi Nakao, Daisuke Umehara, Koichiro Wakasugi (Kyoto Inst. of Tech.) CQ2014-62 |
The imperfection on orthogonal frequency converters in the transmitter and receiver causes imbalance between in-phase an... [more] | CQ2014-62 pp.129-134 |
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