Koki Tomitagawa, Anuntapat Anuntachai, Supannada Chotipant, Olarn Wongwirat, and Shigeru Kuchii, "Performance Measurement of Energy Optimal Path Finding for Waste Collection Robot Using ACO Algorithm," IEEE Access, Vol. 10, pp. 117261-117272, 2022. (DOI 10.1109/ACCESS.2022.3219416)

Anuntapat Anuntachai, Olarn Wongwirat, and Arit Thammano, "An Application of Ant Algorithm for Searching Energy-Efficient Route a Mobile Robot Takes using Energy as a Weighting Factor," Artificial Life and Robotics: Volume 19, Issue 4 (2014), pp. 354-362.

Olarn Wongwirat, Keelati Oonchom, and Benjaporn Arnuttinanon, "Performance Verification of Hybrid Temperature Recorder Monitoring System," Journal of Information Science and Technology, Vol. 2, No. 1, January-June 2011, pp. 50-59.

Olarn Wongwirat and Shigeyuki Ohara, "Haptic Media Synchronization for Remote Surgery through Simulation," IEEE Multimedia, Vol. 13, No. 3, July-September 2006, pp. 62-69.

Olarn Wongwirat and Shigeyuki Ohara, "Performance Evaluation of Compromised Synchronization Control Mechanism for Distributed Virtual Environment (DVE)," Virtual Reality, Springer Verlag, Vol. 9, No. 1, 2006, pp. 1-16.

Olarn Wongwirat, Surasit Ratree, and Seiichi abe, "Performance Evaluation of Multimedia HRD System," Journal of King Mongkut's Institute of Technology Ladkrabang, Vol.7, No.1, March 1999, pp. 20-27.

Olarn Wongwirat, "Multimedia Distance Learning System via Satellite," Ladkrabang Information Journal, Vol.3, No.1, January 1998, pp. 31-41.

Olarn Wongwirat, "Communications via Satellite," Ladkrabang Information Journal, Vol.1, No.1, July 1996, pp. 34-43.

Olarn Wongwirat, Supannada Chotiphan, Tadchapon Hongtong, and Nattawat Suttijumnong, "Development of WLAN Topology Display System," Proceedings of the 37th International Conference on Information Networking (ICOIN 2023), pp.73-78, Bangkok, Thailand, January 2023, DOI: 10.1109/ICOIN56518.2023.10048958.

Koki Tomitagawa, Anuntapat Anuntachai, Supannada Chotiphan, Olarn Wongwirat, and Shigeru Kuchii, "Adapted ACO Algorithm for Energy-Efficient Path Finding of Waste Collection Robot," Proceedings of the 22nd International Conference on Control, Automation and Systems, pp.469-474, Busan, Korea, November 2022, DOI: 10.23919/ICCAS55662.2022.10003892.

Chanida Singto and Olarn Wongwirat, "An Automated ICD-10 Code Assigning System using A Classification Method," Proceedings of the 13th Biomedical Engineering International Conference, PID 1570749182, Ayutthaya, Thailand, November 2021. 

Koki Tomitagawa, Anuntapat Anuntachai, Supannada Chotiphan, Olarn Wongwirat, and Shigeru Kuchii, "Energy Optimal Path Finding for Garbage Collection Robot using Ant Colony Optimization Algorithm," Proceedings of the 13th International Conference on Information Technology and Electrical Engineering, pp.133-138, Thailand, October 2021.

Krongpon Meesriyong, Olarn Wongwirat, and Kamesh Namuduri, "An Experimental Study of Wi-Fi Access Service using Drones in Container Yard," Proceedings of the 20th International Conference on Control, Automation and Systems, pp.1110-1115, Busan, Korea, October 2020.

Saksiri Meesawad, Bundit Thanasopon, and Olarn Wongwirat, "A Result Verification of Decision Tree Model for Industrial Wireless Sensors Selection using Analytic Hierarchy Process," Proceedings of the 16th International Joint Conference on Computer Science and Software Engineering, PID 1570542664, Pattaya, Thailand, July 2019.

Lummanee Chanama, Olarn Wongwirat, "A Comparison of Decision Tree Based Techniques for Indoor Positioning System," Proceedings of the 32nd International Conference on Information Networking, pp.732-737, Chiang Mai, Thailand, January 2018.

Saksiri Meesawad, Olarn Wongwirat, "Industrial Wireless Sensor Selection Method by Using Decision Tree ," Proceedings of the 9th International Conference on Information Technology and Electrical Engineering, pp.1-6, Phuket, Thailand, October 2017.

Anuntapat Anuntachai, Arit Thammano, and Olarn Wongwirat, "Searching Optimization Route by using Pareto Solution with Ant Algorithm for Mobile Robot in Rough Terrain Environment,"Proceedings of the 14th International Conference on Control, Automation, Robotics & Vision, Tu41.5, Phuket, Thailand, November 2016.

Anuntapat Anuntachai, Arit Thammano, and Olarn Wongwirat, "An Application of Pareto Solution with Adapted ACO for Searching Optimal Route of a Mobile Robot in Rough Terrain Environment," Proceedings of the 16th International Conference on Control, Automation and Systems, pp.382-387, Gyeongju, Korea, October 2016.

Saksiri Meesawad, Sumet Prapawat, and Olarn Wongwirat, "Choosing Industrial Wireless Sensor by using Analytic Hierarchy Process," Proceedings of the 8th International Conference on Information Technology and Electrical Engineering, pp.285-289, Yogyakarta, Indonesia, October 2016.

Chutchai Chaiyarat and Olarn Wongwirat, "An Indoor Position Tracking Method using Inertial Measurement Unit and Fingerprint Technique for Mobile Robot," Proceedings of the 20th International Symposium on Artificial Life and Robotics, pp.344-349, Beppu, Oita, Japan, January 2015.

Wittaya Panjanda, and Olarn Wongwirat, "A Scoring Method Improvement of Analytic Hierarchy Process Using Linear Programming Technique for Vertical Handover Decision," Proceedings of the 17th International Symposium on Wireless Personal Multimedia Communications, pp.1-6, Sydney, Australia, September 2014.

Wittaya Panjanda, and Olarn Wongwirat, "An Improvement of Analytic Hierarchy Process by Linear Programming for Vertical Handover Decision," Proceedings of the 29th International Technical Conference on Circuit, Systems, Computers and Communications, pp.187-190, Phuket, Thailand, July 2014.

Anuntapat Anuntachai, Olarn Wongwirat, and Arit Thammano, "An Application of Ant Algorithm for Searching Energy-Efficient Route of Mobile Robot by using Energy as a Weighting Factor," Proceedings of the 19th International Symposium on Artificial Life and Robotics, pp.412-417, Beppu, Oita, Japan, January 2014.

Anuntapat Anuntachai and Olarn Wongwirat, "Searching Energy-Efficient Route in Rough Terrain for Mobile Robot with Ant Algorithm," Proceedings of the 5th International Conference on Intelligent Robotics and Applications, Part III, LANI7508, pp.194-204, Quebec, Montreal, Canada, October 2012.

Olarn Wongwirat and Prakat Pragotchue, "Performance Evaluation of Location Based Service Protocol for Indoor and Outdoor Operations," Proceedings of the 8th International Conference on Wireless Communications, Networking and Mobile Computing, p.42232, Shanghai, China, September 2012.

Olarn Wongwirat and Wittaya Panjanda, "An Application of Linear Programming for Vertical Handover Decision Making ," Proceedings of the 8th International Conference on Wireless Communications, Networking and Mobile Computing, p.42278, Shanghai, China, September 2012.

Olarn Wongwirat and Anuntapat Anuntachai, "Searching Energy-Efficient Route for Mobile Robot with Ant Algorithm," Proceedings of the International Conference on Control, Automation and Systems, pp.1071-1075, Gyeonggi-do, Korea,October 2011.

Olarn Wongwirat and Prakat Pragotchue, "Accuracy Verification of Location Base Protocol Mechanism," Proceedings of the 7th International Conference on Wireless Communications, Networking and Mobile Computing, p.90937, Wuhan, China, September 2011.

Olarn Wongwirat, Keerati Oonchom, and Benjaporn Arnuttinanon, "Operation Verification of Hybrid Temperature Recorder Monitoring System," Proceedings of 2011 IEEE International Conference on Mechatronics and Automation, pp.1526-1531, Beijing, China, August 2011.

Olarn Wongwirat, Keerati Oonchom, and Benjaporn Arnuttinanon, "Prototype Development of Hybrid Temperature Recorder Monitoring System," Proceedings of the 11th International Conference on Control, Automation, Robotics, and Vision, pp.1045-1050, Singapore, December 2010.

Olarn Wongwirat and Chutchai Chaiyarat, "A Position Tracking Experiment of Mobile Robot with Inertial Measurement Unit (IMU)," Proceedings of the International Conference on Control, Automation and Systems, pp.304-308, Gyeonggi-do, Korea, October 2010.

Olarn Wongwirat and Prakat Pragotchue, "A Proposed Framework for Indoor and Outdoor Localization Protocol for Mobility Support," Proceedings of the 25th International Technical Conference on Circuit, Systems, Computers and Communications, pp.322-325, Pattaya, Thailand, July 2010.

Olarn Wongwirat, Sitthisak Paelaong, and Supansa Homchoo, "A Prototype Development of ET Rescue Robot by using a UML," Proceedings of the 7th International Conference on Information, Communications, and Signal Processing, p.626, Macau, December 2009.

Olarn Wongwirat, Sitthisak Paelaong, and Supansa Homchoo, "ET Rescue Robot," Proceedings of the18th IEEE International Symposium on Robot and Human Interactive Communication, p.226, Toyama, Japan, September 2009.

Olarn Wongwirat, Thanachai Hanidthikul, and Natee Vuthikulvanich, "A Formal Approach in Robot Development Process using a UML Model," Proceedings of the 10th International Conference on Control, Automation, Robotics, and Vision, pp.1888-1893, Hanoi, Vietnam, December 2008.

Olarn Wongwirat, Shigeyuki Ohara, and Nopporn Chotikakamthorn,"An Adaptive Buffer Control using Moving Average Smoothing Technique for Haptic Media Synchronization," Proceedings of the 2005 IEEE International Conference on Systems, Man, and Cybernetics, pp.1334-1340, Hawaii, USA, October 2005.

Narongsak Phutphuek, Nattapon Pantuwong, Nopporn Chotikakamthorn, and Olarn Wongwirat, "A Low -cost Vision-based Leg Tracking Algorithm for an Interactive Stereoscopic System,"Proceedings of the 2005 International Technical Conference On Circuits/System, Computers and Communications, pp. 981-982, July 2005.

Olarn Wongwirat and Shigeyuki Ohara, "Moving Average based Adaptive Buffer for Haptic Media Synchronization in Telehaptics," Proceedings of the 2005 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, pp.1305-1311, Monterey, CA, USA, July 2005.

Olarn Wongwirat and Shigeyuki Ohara, "Haptic Media Synchronization using Time Adjustment Algorithm for Noncollaborative Telehaptics," Proceedings of the 2005 IEEE International Conference on Mechatronics, pp.555-561, Taiwan, July 2005.

Olarn Wongwirat and Shigeyuki Ohara, "Smoothing Technique using Time Adjustment Mechanism for Linear Haptic Media Synchronization in Teleoperation," Proceedings of the 3rd IASTED International Conference on Communications, Internet, and Information Technology, pp.589-595, St.Thomas Island, USA, November 2004.

Olarn Wongwirat and Shigeyuki Ohara, "An Experiment on Haptic Perception under Delay Constraints," Proceedings of the 3rd International Symposium on Communications and Information Technology, Vol.1, pp.194-197, Samila, Songkhla, Thailand, September 2003.

Olarn Wongwirat, Surasit Ratree, and Toshio Wakabayashi, "Performance Measurement of Pilot Global Distance Trainig System at KMITL,"Proceedings of the IASTED International Conference on Computer and Advanced Technology in Education, pp.499-504, Rhodos, Greece, July 2003.

Olarn Wongwirat, Nopporn Chotikakamthorn, and Shigeyuki Ohara, "Multimodal Synchronization for Human-Machine Interaction in Virtual Environment," Proceedings of the International Conference on Information Technology and Applications, p.199-2, Bathurst, Australia, November 2002.

Olarn Wongwirat and Shigeyuki Ohara, "Adaptble Synchronization for Distributed Virtual Environment," Proceedings of the 2nd International Symposium on Communications and Information Technology, pp.467-470, Pattaya, Chonburi, Thailand, October 2002.

Olarn Wongwirat, Chanboon Sathitwiriyawong, and Shigeyuki Ohara, "Performance Evaluation of Traffic Congestion for Multiple-Lock Checking Algorithm in Distributed Share Virtual Environment Applications," Proceedings of the IEEE Region10 International Conference on Electrical and Electronic Technology, pp.129-132, Singapore, August 2001.

Shigeyuki Ohara, Olarn Wongwirat, and Chanboon Sathitwiriyawong, "An Adjustment Model of Continuous Data Streams for Multimedia Network," Proceedings of the 5th World Multi-Conference on Systemics, Cybernetics and Informatics, Vol. XVII, pp. 316-319, July 2001.

Olarn Wongwirat, Chanboon Sathitwiriyawong, and Shigeyuki Ohara, "Delay Effect Simulation of Multiple-Lock Checking Algorithm for Distributed Shared Virtual Environment," Proceedings of the EUROIMAGE 2001 International Conference on Augmented, Virtual Environments, and 3D Imaging, pp.101-104, Mykonos, Greece, May 2001.

Aranya Walairacht, Olarn Wongwirat, Isara Burintramart, Chitra Thanapandi, and Shigeyuki Ohara, "A Learning Mechanism for Adaptive Fitness Function in Auto 3D Graphics Layout using Genetic Programming," Proceedings of the 2001 IEEE Canadian Conference on Electrical and Computer Engineering, MP8, May 2001.

Olarn Wongwirat, Chanboon Sathitwiriyawong, and Shigeyuki Ohara, "Optimistic Synchronization Mechanism for Distributed Simulation Applications in Shared Virtual Environment,"Proceedings of the 2000 Asia-Pacific Symposium on Broadcasting and Communications, pp.302-306, Ladkrabang, Bangkok, Thailand, December 2000.

Aranya Walairacht, Isara Burintramart, Olarn Wongwirat, and Shigeyuki Ohara, "An Auto Graphics Layout Design System using Genetic Programming," Proceedings of the 2000 Asia-Pacific Symposium on Broadcasting and Communications, pp. 23-27, December 2000.

Olarn Wongwirat, Isara Burintramart, Aranya Walairacht, Nopporn Chotikakamthorn, and Shigeyuki Ohara, "Synchronization Mechanism using Multiple-Lock Checking Algorithm in Shared Virtual Environment with Haptic Force Feedback Control," Proceedings of the 8th International Conference on Software, Telecommunications and Computer Networks, Vol. 2, pp. 783-792, Split, Croatia, October 2000.

Nopporn Chotikakamthorn, Chanboon Sathitwiriyawong, Olarn Wongwirat, and Isara Burintramart, "Network and Haptic Virtual Environment Research at MVLAB," Proceedings of the 2000 Symposium on Theory and Applications of Communications and Information Technology, pp.26-31, August 2000.

Olarn Wongwirat, Stanislav S. Makhanov, and Shigeyuki Ohara, "Bounded Delay Performance Analysis for Distributed Multimedia Applications under Shared Virtual Environment,"Proceedings of the 3rd IEEE International Caracas Conference on Devices Circuits and Systems, T053, Cancun, Mexico, March 2000.

Olarn Wongwirat, Nopporn Chotikakamthorn, and Shigeyuki Ohara, "Modeling Internet Delay for Interactive Distributed Multimedia Applications," Proceedings of the 1999 IEEE International Symposium on Intelligent Signal Processing and Communication System, pp. 521-524, Phuket, Thailand, December 1999.

Olarn Wongwirat and Seiichi Abe, "Multimedia HRD System : Network technology and operations," Proceedings of the Meeting of the Regional Working Groups on Space Applications for Sustainable Development, United Nations, New York, 1998.

Olarn Wongwirat,"Ground Terminal Design,"EEs Technical Report, New Mexico State University, August 1995.