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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 40  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
NS, ASN, RCC, RCS, SR
(Joint)
2017-07-19
08:50
Hokkaido Hokkaido Univ. 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. 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 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 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 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. 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. 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 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 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 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 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.) 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.) 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 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 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 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 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) 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   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   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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