1. Refereed Journal Publications
2. Refereed Conference Publications
3. Book/Book Chapters
4. Technical Reports
5. Patents

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• Energy-Efficient Human Probes for High-Resolution Sensing in Urban Environments. Niwat Thepvilojanapong, Shin'ichi Konomi, and Yoshito Tobe. IEEJ Transactions on Electrical and Electronic Engineering, 2011. (To Appear)

• A Study of Cooperative Human Probes in Urban Sensing Environments. Niwat Thepvilojanapong, Shin'ichi Konomi, and Yoshito Tobe. IEICE Transactions on Communications, Vol.E93-B, No.11, pages 2868-2878, November 2010.

• A Deployment of Fine-Grained Sensor Network and Empirical Analysis of Urban Temperature. Niwat Thepvilojanapong, Takahiro Ono, and Yoshito Tobe. Sensors, Vol.10, No.3, pages 2217-2241, March 2010.

• Observing Real-World Attention by a Laser Scanner. Yasunori Yakiyama, Niwat Thepvilojanapong, Masayuki Iwai, Oru Mihirogi, Kazunori Umeda, and Yoshito Tobe. IPSJ Transactions on Advanced Computing Systems (ACS), Vol.2, No.1, pp.173-186, March 2009. (Funai Young Researcher Award)

• A Performance Study of Inter-Vehicle Communication Protocols for Collision Warning System. Niwat Thepvilojanapong, Shinji Motegi, and Hiroki Horiuchi. Transactions of IPSJ, Vol.49, No.1, pages 199-21, January 2008.

• Proposal on Relay Control Protocol for Inter-Vehicle Communications (in Japanese). Shinji Motegi, Niwat Thepvilojanapong, and Hiroki Horiuchi. IEICE Transaction on Fundamentals of Electronics Communications and Computer Sciences, Vol.J91-A, No.1, pages 95-104, January 2008.

• SHR: Stateless Hierarchical Routing for Dynamic Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. SICE Transactions, Vol.E-S-1, No.1, pages 43-51, December 2005.

• Autonomous Configuration in Wireless Sensor Networks. Yoshito Tobe, Niwat Thepvilojanapong, and Kaoru Sezaki. IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, Vol.E88-A, No.11, pages 3063-3071, November, 2005.

• SDC: A Scalable Approach to Collect Data in Wireless Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. IEICE Transactions on Communications, Vol.E88-B, No.3, pages 890-902, March 2005.

• Demo Abstract: Kitokito - Supporting Impromptu Collaboration in Participatory Sensing Using Smart Camera Phones. Hiroki Ishizuka, Shun Fukumoto, Tatsuhiro Nishimoto, Ryo Fukuhara, Keiji Sugo, Niwat Thepvilojanapong, Shin'ichi Konomi, Kaoru Sezaki, Ryosuke Shibasaki, and Yoshito Tobe. Proceedings of the 8th ACM International Conference on Embedded Networked Sensor Systems (SenSys 2010), pages 377-378, Zurich, Switzerland, November 2010.

• Opportunistic Collaboration in Participatory Sensing Environments. Niwat Thepvilojanapong, Shin'ichi Konomi, Yoshito Tobe. Proceedings of the 5th ACM International Workshop on Mobility in the Evolving Internet Architecture (MobiArch 2010), pages 39-44, Chicago, Illinois, USA, September 2010.

• TScan: A Practical Micro-Climate Sensor Network. Takashi Kagamoto, Atsuhiro Takagi, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 7th International Conference on Networked Sensing Systems (INSS 2010), Poster Session, pages 338-339, Kassel, Germany, June 2010.

• Aquiba: An Energy-Efficient Mobile Sensing System for Collaborative Human Probes. Niwat Thepvilojanapong, Shin'ichi Konomi, Jun'ichi Yura, Takeshi Iwamoto, Susanna Pirttikangas, Yasuyuki Ishida, Masayuki Iwai, Yoshito Tobe, Hiroyuki Yokoyama, Jin Nakazawa, and Hideyuki Tokuda. Proceedings of the 15th International Conference on Database Systems for Advanced Applications (DASFAA 2010), Demonstration Session, LNCS 5982, pages 420-423, Tsukuba, Japan, April 2010.

• A Shoes-Integrated Sensing System for Context-Aware Human Probes. Kazumasa Oshima, Yasuyuki Ishida, Shin'ichi Konomi, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 15th International Conference on Database Systems for Advanced Applications (DASFAA 2010), Demonstration Session, LNCS 5982, pages 424-427, Tsukuba, Japan, April 2010.

• Exploring Energy-Efficient Human Probes for High-Fidelity Sensing in Urban Environments. Niwat Thepvilojanapong, Shin'ichi Konomi, Jun'ichi Yura, Takeshi Iwamoto, Susanna Pirttikangas, Yasuyuki Ishida, Masayuki Iwai, Yoshito Tobe, Hiroyuki Yokoyama, Jin Nakazawa, and Hideyuki Tokuda. Proceedings of the 5th International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP 2009), pages 61-66, Melbourne, Australia, December 2009.

• Demo Abstract: A Human Probe for Measuring Walkability. Kazumasa Oshima, Yasuyuki Ishida, Shin'ichi Konomi, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 7th ACM International Conference on Embedded Networked Sensor Systems (SenSys 2009), Demonstration Session, pages 353-354, Berkeley, California, USA, November 2009.

• Integrating Pressure Sensors and Accelerometers in Footwear-Based Human Probes. Kazumasa Oshima, Yasuyuki Ishida, Shin'ichi Konomi, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the Asian Workshop on Sensing and Visualization of City-Human Interaction (AWSVCI 2009), pages 17-20, Beijing, China, August 2009.

• A Micro-Climate Viewer with Combination of Heterogeneous Sensor Sources. Keisuke Kanai, Yasuyuki Ishida, Atsuhiro Tagaki, Masayuki Iwai, Niwat Thepvilojanapong, Shin'ichi Konomi, and Yoshito Tobe. Proceedings of the Asian Workshop on Sensing and Visualization of City-Human Interaction (AWSVCI 2009), pages 29-32, Beijing, China, August 2009.

• Evaluating People's Attention in the Real World. Niwat Thepvilojanapong, Yasunori Yakiyama, Oru Mihirogi, Masayuki Iwai, Kazunori Umeda, Yoshito Tobe, and Ryosuke Shibasaki. Proceedings of the ICROS-SICE International Joint Conference 2009 (ICCAS-SICE 2009), pp.3702-3709, Fukuoka, Japan, August 2009.

• A Preliminary Investigation of Human Probes for Urban Sensing Environments. Niwat Thepvilojanapong. Proceedings of the 2nd Asia-Europe Workshop on Ubiquitous Computing (AEWUC 2009), Shizuoka, Japan, August 2009.

• WINFO+: Identification of Environment Condition Using Walking Signals. Yasuyuki Ishida, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the International Workshop on Sensor Network Technologies for Information Explosion Era (SeNTIE 2009), pages 508-512, Taipei, Taiwan, May 2009.

• Askus: Amplifying Mobile Actions. Shin'ichi Konomi, Niwat Thepvilojanapong, Ryohei Suzuki, Susanna Pirttikangas, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the 7th International Conference on Pervasive Computing (Pervasive 2009), pp.202-219, Nara, Japan, May 2009. Acceptance rate: 18.4% (27/147).

• SPAL: Appraising People's Attention in The Real World. Niwat Thepvilojanapong, Yasunori Yakiyama, Oru Mihirogi, Masayuki Iwai, Keisuke Aizawa, Kazunori Umeda, Yoshito Tobe, and Ryosuke Shibasaki. Adjunct Proceedings of the 7th International Conference on Pervasive Computing (Pervasive 2009), Demonstration, pp.185-188, Nara, Japan, May 2009.

• An Implicit Folksonomy Approach Through Embedded Sensing Systems. Niwat Thepvilojanapong, Shin'ichi Konomi, Yasuyuki Ishida, Ryohei Suzuki, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the International Workshop on Integrating Taxonomies and Folksonomies for Enhanced Knowledge Navigation (ITFEKN 2008), pp.1-9, Yokohama, Japan, November 2008.

• An Implicit and User-Modifiable Urban Sensing Environment. Yasuyuki Ishida, Shin'ichi Konomi, Niwat Thepvilojanapong, Ryohei Suzuki, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the International Workshop on Urban, Community, and Social Applications of Networked Sensing Systems (UrbanSense 2008), pp.36-40, Raleigh, North Carolina, USA, November 2008.

• Analysis of Fine-Grained Urban Temperature Collected with A Sensor Network. Takahiro Ono, Keisuke Kanai, Hiroki Ishizuka, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 7th IEEE Conference on Sensors (IEEE SENSORS 2008), pp.712-715, Lecce, Italy, October 2008.

• Time Series Analysis on Sensor Database. Niwat Thepvilojanapong, Takahiro Ono, and Yoshito Tobe. Proceedings of the 7th International Conference on ASIA GIS 2008, Busan, South Korea, September 2008.

• SPAL: A Sensor of Physical-World Attention using Laser Scanning. Yasunori Yakiyama, Oru Mihirogi, Niwat Thepvilojanapong, Kazunori Umeda, and Yoshito Tobe. Proceedings of the 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2008), Work-in-Progress, pp.20-23, Kaohsiung, Taiwan, August, 2008.

• TomuDB: Heterogeneous and multi-resolution database for urban sensor information. Niwat Thepvilojanapong and Yoshito Tobe. GeoWeb 2008 Conference, Vancouver, BC, Canada, July 2008.

• OSOITE: Towards Real-World Search. Niwat Thepvilojanapong, Masayuki Iwai, Koichi Yamada, Yoh Shiraishi, Kazunori Takashio, Kazunori Umeda, Yosuke Tamura, and Yoshito Tobe. Proceedings of the 17th IASTED International Conference on Applied Simulation and Modelling (ASM 2008), Corfu, Greece, June 2008.

• Overview of OSOITE. Yoshito Tobe, Niwat Thepvilojanapong, Masayuki Iwai, Koichi Yamada, Yoh Shiraishi, Kazunori Takashio, Kazunori Umeda, and Yosuke Tamura. Proceedings of the International Workshop on Advanced Integrated Sensing Technologies for Safety and Security of Daily Life (IWAIST2008), Kanazawa, Japan, June 2008.

• GeoSkip: A Structured Overlay Network for Location-based Service. Yoichi Nakamura, Hiroki Saito, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 5th International Workshop on Networked Sensing Systems (INSS 2008), Poster, page 238, Kanazawa, Japan, June 2008.

• WINFO+: Extracting Environmental Information Using Walking Signals. Yasuyuki Ishida, Ryohei Suzuki, Kaoru Sezaki, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the 6th International Conference on Pervasive Computing (Pervasive 2008), Demonstration, pp.107-110, Sydney, Australia, May 2008.

• Resource Allocation for Coexisting ZigBee-Based Personal Area Networks. Niwat Thepvilojanapong, Shinji Motegi, Akira Idoue, and Hiroki Horiuchi. Proceedings of the 7th International Conference on Networking (ICN 2008), pages 36-45, Cancun, Mexico, April 2008.

• Mobility Helps Data Delivery in Disruption Tolerant Networks. Kaoru Sezaki, Niwat Thepvilojanapong, and Yoshito Tobe. Proceedings of the International Symposium on Ubiquitous Computing Systems (UCS 2007), LNCS 4836, pages 208-305, Tokyo, Japan, November 2007.

• TomuDB: Multi-Resolution Queries in Heterogeneous Sensor Networks Through Overlay Network. Yoh Shiraishi, Niwat Thepvilojanapong, Yosuke Tamura, Tatsuro Endo, Koichi Yamada, Nayuta Ishii, Hiroki Ishizuka, Keisuke Kanai, and Yoshito Tobe. Proceedings of the 5th International Conference on Embedded Networked Sensor Systems (SenSys 2007), Poster Session, pages 419-420, Sydney, Australia, November 2007.

• Application-Oriented Relay Control for Inter-Vehicle Communications. Shinji Motegi, Niwat Thepvilojanapong, and Hiroki Horiuchi. Proceedings of the 14th World Congress on Intelligent Transport Systems, Beijing, China, October 2007.

• Performance Evaluation of Protocols for Inter-Vehicle Communications. Niwat Thepvilojanapong, Shinji Motegi, and Hiroki Horiuchi. Proceedings of the IEEE Intelligent Vehicles Symposium (IV 2007), pages 931-937, Istanbul, Turkey, June 2007.

• Application Programming Interface for Configuration of Multi-Robot Sensor Networks. Junya Yamashita, Ryohei Suzuki, Kei Sawai, Niwat Thepvilojanapong, Kaoru Sezaki, Hiroki Saito, Tsuyoshi Suzuki, and Yoshito Tobe. Proceedings of the 2nd IEEE International Workshop on Heterogeneous Wireless Sensor Networks (HWISE 2006), pages 331-335, Vienna, Austria, April 2006.

• A Network Architecture for Mobile Sensing Robot Network. Yoshito Tobe, Tsuyoshi Suzuki, Ryohei Suzuki, Kei Sawai, Kazunori Makimura, Niwat Thepvilojanapong, Kaoru Sezaki, Hiroki Saito, Junya Yamashita, Ken'ichiro Kanehana, and Kenji Sasaki. Proceedings of the 36th International Symposium on Robotics (ISR 2005), Tokyo, Japan, November 2005.

• Impact of Intentional Mobility in Sparse Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the 3rd ACM International Conference on Embedded Networked Sensor Systems (SenSys 2005), Poster Session, pages 286-287, San Diego, CA, November 2005.

• A Human-based Sensor Network Connecting Mobile Phones. Kenji Sasaki, Yuichi Uehara, Yoshihiro Kanazawa, Kazunori Makimura, Niwat Thepvilojanapong, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the 3rd ACM International Conference on Embedded Networked Sensor Systems (SenSys 2005), Demonstartion, page 311, San Diego, CA, November 2005.

• Autonomously Connecting Wireless Sensors in Ubiquitous Computing Environments. Niwat Thepvilojanapong. Proceedings of the Workshop on Ubiquitous Wireless Communications (UWC 2005), in conjunction with Ubicomp 2005, pages 1-2, Tokyo, Japan, September 2005.

• Measurement-based Peer-to-Peer Grouping for Networked Virtual Environment. Hajime Sogawa, Niwat Thepvilojanapong, Hiroki Saito, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the 7th International Workshop on Multimedia Network Systems and Applications (MNSA 2005), pages 693-697, Columbus, Ohio, USA, June, 2005.

• On the Construction of Efficient Data Gathering Tree in Wireless Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS 2005), Special Session - Advances in Low Power Sensor Networks, pages 648-651, Kobe, Japan, May, 2005.

• Association Management between Everyday Objects and Personal Devices for Passengers in Urban Areas. Hirobumi Shimizu, Osamu Hanzawa, Ken'ichiro Kanehana, Hiroki Saito, Niwat Thepvilojanapong, Kaoru Sezaki, and Yoshito Tobe. Proceedings of the 3rd International Conference on Pervasive Computing (Pervasive 2005), Demonstration, pages 89-92, Munich, Germany, May, 2005.

• HAR: Hierarchy-Based Anycast Routing Protocol for Wireless Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the IEEE International Symposium on Applications and the Internet (SAINT 2005), pages 204-212, Trento, Italy, February 2005.

• Securing Group Communication in Wireless Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the IEEE TENCON 2004, pages 188-191, Chiangmai, Thailand, November 2004.

• SHR: Stateless Hierarchical Routing for Dynamic Sensor Networks. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the First International Workshop on Networked Sensing Systems (INSS 2004), pages 134-139, Tokyo, Japan, June 2004.

• Detection of Multiple Bottleneck Bandwidth. Niwat Thepvilojanapong, Yoshito Tobe, and Kaoru Sezaki. Proceedings of the 17th International Conference on Advanced Information Networking and Applications (AINA 2003), pages 662-669, Xi'an, China, March 2003.

• Smart Environments for Occupancy Sensing and Services. Susanna Pirttikangas, Yoshito Tobe, and Niwat Thepvilojanapong. Handbook of Ambient Intelligence and Smart Environments, Eds. Hideyuki Nakashima, Hamid Aghajan, and Juan Carlos Augusto, Springer, ISBN: 978-0-387-93807-3 (Print) 978-0-387-93808-0 (Online), pages 825-849, 2010.

Six patents are granted in Japan.

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