Welcome to the Computer Networking Research Laboratory

CNRL is a research laboratory at the Department of Electrical and Computer Engineering, Colorado State University, USA. CNRL has been engaged in research on a broad range of topics in networking, including detection of emerging patterns in information networks, network sampling and reconstruction, IoT and sensor networks, P2P networks, high-speed networking for radars, subsurface plume detection using sensor networks, performance analysis of networks, network measurements, and VLSI Testing. and implementation from weather radars to tiny micro sensors.

News

• A. Jayasumana presented a Research Seminar on 'Computer Aided Tools for Social Science Research - Experience with Terrorist Risk Assessment Using Large-Scale Behavioral Data,' Department of Politics & Computer Science Department, Brandeis University, Waltham, MA, Nov. 5, 2019.
• A. Jayasumana made a presentation on 'Communication Networks to Terrorist Networks - Exciting Challenges in Networking,' to the Industrial Advisory Board, Department of ECE, CSU, Oct. 25 2019.

• Shashika Muramudalige received a Walter Scott Research Fellowship, WSCoE
• CNRL initiates a new DOJ/NIJ funded project in collaboration with Brandeis University (source)

• Gunjan Mahindre received a Walter Scott Teaching Fellowship, WSCoE
• A. Jayasumana presented a Research Seminar on 'Topology Coordinates: A Localization Free Approach for 2D/3D IoT Subnets,' at Data Science, Mathematics and Computer Science Departments, Worcester Polytechnic Institute (WPI), Worcester, MA, Sept. 17, 2017.
• A. Jayasumana presented a Keynote: IoT Applications for Emerging Regions, Workshop and Industry Forum on Emerging Internet of Things (IoT) Applications, University of Moratuwa, Sri Lanka, July 19, 2017.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, 'IoT – A pervasive technology for innovation,' The IEEE Quebec City Section and Laval University, Quebec City, Canada, 17 June 2017.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' The IEEE Montreal Section and Concordia University, Montreal, Quebec Canada, 15 June 2017.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' IEEE Ottawa Section, Algonquin College, Ottawa, ON Canada, 14 June 2017.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' IEEE Toronto Section and University of Toronto, 13 June 2017.
• Benjamin W. K. Hung successfully defended his Ph.D. thesis, "A Graph-Based, Systems Approach for Detecting Violent Extremist Radicalization Trajectories and Other Latent Behaviors," June 9, 2017.
• A. Jayasumana presented an IEEE Communication Society Distinguished Lecture 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' IEEE Seattle Chapter, 14820 Northeast 36th Street, Redmond, WA 98052, 11 April 2017.
• A. Jayasumana presented an IEEE Communication Society Distinguished Lecture 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' IEEE Portland Chapter, Tektronix Bldg 38, Beaverton, Oregon 97077, 10 April 10 2017.
• Sridhar Ramasamy successfully defended his M.S. Thesis, "Capture & Reconstruction of the Topology of Undirected Graphs with Partial Coordinates: A Matrix Completion based Approach," 30 Jan. 2017.

• A. Jayasumana presented a Technical Seminar, `IoT A pervasive technology for innovation and disruption,' at the National Engineering Research & Development Center, Ja-Ela, Sri Lanka, 6 Oct. 2016.
• A. Jayasumana presented a Technical Seminar, `IoT A pervasive technology for innovation and disruption,' at the Institute of Engineers Sri Lanka (IESL), Colombo, Sri Lanka, 5 Oct. 2016.
• A. Jayasumana presented a Technical Seminar on `IoT A pervasive technology for innovation,' at the IT Faculty, University of Moratuwa, Sri Lanka, 5 Oct. 2016.
• A. Jayasumana presented a Research Seminar, `Topology Preserving Maps: A Localization-Free Approach for IoT Subnets,' at the Department of Computer Science and Engineering, Indian Institute of Technology, Kharagpur, India, 1 Oct. 2016.
• A. Jayasumana presented a Keynote Speech, `IoT A pervasive Technology for Innovation,' IEEE TechSym 2016, , IIT Kharagpur, India, 30 Sept. 30 - 2 Oct. 2016.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, `IoT A pervasive technology for innovation,' IEEE Kolkata Chapter & Meghnad Saha Institute of Technology, Kolkota, W. Bengal, India, 28 Sept. 2016.
• A. Jayasumana presented a Research Seminar, `Topology Preserving Maps: A Localization-Free Approach for IoT Subnets,' at the Jadavpur University, Kolkata, W. Bengal, India, 28 Sept. 2016.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, `IoT A pervasive technology for innovation,' at the National Institute of Technology, Calicut, Kerala, India, 27 Sept. 2016.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, `IoT A pervasive technology for innovation,' IEEE Kerala Chapter, Adi Shankara Institute of Engineering & Technology, Kalady, Kerala, 26 Sept. 2016.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, `IoT A pervasive technology for innovation,' at the Cochin University of Science and Technology, Cochin, Kerala, India, 26 Sept. 2016.
• Shibayan Chatterjee successfully defended his M.S. thesis, "Multi-Attribute Query Resolution in Structured Peer-to-Peer Networks," 19 Sept. 2016.
• Negar Mosharraf Ghahfarokhi successfully defended her Ph.D. thesis, "Cooperative Defense Mechanisms for Detection, Identification and Filtering of DDoS Attacks," May 31, 2016.
• A. Jayasumana presented a Research Seminar on 'Topology Preserving Maps: A Localization-Free Approach for 2-D and 3-D IoT Subnets,' Department of Electrical Engineering and Computer Science, Colorado School of Mines, 22 Feb. 2016.
• A. Jayasumana presented a Keynote Speech entitled `IoT: A Pervasive Technology for Innovation,' at the International Conference on Internet of Things and Applications (IOTA'2016), Pune, India, 22-24 January 2016. It was sponsored by the Pune ComSoc chapter and the MIT College of Engineering, Kothrood, Pune.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, 'IoT A pervasive technology for innovation,' at the Institute of Engineering and Technology, Ahmedabad University, Nr. CEPT Campus, Ahmedabad. It was sponsored by the IEEE Communications Society, Ahmedabad, 20 Jan. 2016.
• A. Jayasumana presented a Research Seminar on 'Topology Preserving Maps: A Localization-Free Approach for IoT Subnets,' at the Nirma University, Ahmedabad, India, 20 Jan 2016.
• A. Jayasumana presented a Research Seminar on 'IoT: A pervasive technology for innovation,' and 'Topology Preserving Maps: A Localization-Free Approach for IoT Subnets,' at the Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai, India, 19 Jan 2016.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society entitled 'IoT A pervasive technology for innovation,' at the Usha Mittal Institute of Technology, SNDT Women's University, Santacruz(w), Mumbai. It was sponsored by the IEEE Communications Society, Mumbai, 18 Jan. 2016.
• A. Jayasumana made a presentation 'Research and Professional Development,' at the Amrita University, Amritapuri, Kerala, India, 14 Jan. 2016.
• A. Jayasumana presented a Technical Seminar on 'Internet of Things A Pervasive Technology for Innovation,' at the Amrita University, Amritapuri, Kerala, India, 14 Jan. 2016.
• A. Jayasumana presented a Research Seminar on 'Topology Preserving Maps: A Localization-Free Approach for IoT Subnets,' at the Faculty of Engineering and the Faculty of IT, University of Moratuwa, Sri Lanka, 8 Jan. 2016.
• A. Jayasumana presented a Technical Seminar on `Internet of Things and of Everything,' at the BCS The Chartered Institute for IT, Sri Lanka Branch, Colombo, 7 Jan. 2016.

• A. Jayasumana presented a Technical Seminar on ``Internet to 'Internet of Things' to 'Internet of Everything' ,'' Engineering Faculty, University of Jaffna, Sri Lanka, 21 Dec. 2015.
• A. Jayasumana presented a Keynote Speech, `IoT: A Pervasive Technology for Innovation,' at the 10th IEEE International Conference on Industrial and Information Systems (ICIIS 2015), Peradeniya, Sri Lanka, 17-20 December 2015.
• A. Jayasumana presented a Technical Seminar on `Internet of Things,' at IEEE High Planes Section, CSU, Fort Collins, CO, October 15, 2015.
• Divyanka Bose successfully defended her M.S. thesis, "Security of Virtual Coordinate Based Wireless Sensor Networks," July 30, 2015.
• A. Jayasumana, Research Seminar on "Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," University of New South Wales, Sydney, Australia, July 11, 2015.
• A. Jayasumana, Research Seminar on "Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," University of Queensland, Brisbane, Australia, June 29, 2015.
• "Internet to 'Internet of Things' to 'Internet of Everything' - The Evolution Continues, IEEE Communications Society Distinguished Lecture by A. Jayasumana, The IEEE Northern Australia Section, NA CommSoc Chapter, and the James Cook University of Science, Technology and Engineering, Cairns, Australia, June 25, 2015.
• "Internet to 'Internet of Things' to 'Internet of Everything' - The Evolution Continues, IEEE Communications Society Distinguished Lecture by A. Jayasumana, The IEEE Northern Australia Section, NA CommSoc Chapter, and the James Cook University of Science, Technology and Engineering, Townsville, Australia, June 24, 2015.
• Chepchumba Limo successfully defended her M.S. thesis, "Decentralized and Dynamic Community Formation in P2P Networks and Performance of Community-based Caching," May 2015.
• Vidarshana Bandara successfully defended his Ph.D. thesis, "Extraction, Characterization and Modeling of Network Data Features - A Compressive Sensing and Robust PCA based Approach," January 21, 2015.

• Gunjan Mahindre presented a paper on 'Post Failure Recovery of Virtual Coordinates in Wireless Sensor Networks,' at the 7th International Conference on Information and Automation for Sustainability (CIAfS'14), Colombo, Sri Lanka, Dec. 2014.
• `Internet to "Internet of Things" to "Internet of Everything" - The Evolution Continues,' Technical Seminar, A. Jayasumana, Department of Computer Science, University of Moratuwa, Sri Lanka, Dec. 17, 2014.
• `Internet to "Internet of Things" to "Internet of Everything" - The Evolution Continues,' Technical Seminar, A. Jayasumana, Department of Electrical Engineering, University of Ruhuna, Galle, Sri Lanka, Dec. 16, 2014.
• Research Seminar, A. Jayasumana, "On Detection of Anomalies and Weak Distributed Patterns in Networks," University of New South Wales, Sydney, Australia, Dec. 2, 2014.
• A. Jayasumana presented a Research seminar on "Network Aware Nodes: A Localization-Free Self-Organization Approach for Internet of Things," The School of Electrical, Computer, and Telecommunications Engineering (SECTE), University of Wollongong, Wollongong, NSW, Australia, Nov. 27, 2014.
• A. Jayasumana made a presentation on "Internet to 'Internet of Things' to 'Internet of Everything'- The Evolution Continues," Institutition of Engineers Sri Lanka, New South Wales Chapter, Engineers Australia Auditorium, Chatswood, NSW, Australia, Nov. 26, 2014.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, "Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," IEEE Communications Society New Zealand, Auckland University of Technology, Nov. 20, 2014.
• A. Jayasumana presented a research seminar on "Topology Coordinate System: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," IEEE Communications Society NZ, University of Canterbury, Christchurch, New Zealand, Nov. 18, 2014.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, "Topology Coordinate System: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," IEEE Communications Society New South Wales Chapter, and University of New South Wales, Australia, Nov. 14, 2014.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, "Network Aware Nodes: A Localization-Free Self-Organization Approach for Internet of Things," Telstra Conference Centre, Melbourne, Australia, Nov. 11, 2014.
• A. Jayasumana presented a technical seminar on "Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," Monash University, Melbourne, Australia, Nov. 11, 2014.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, "Network Aware Nodes: A Localization-Free Self-Organization Approach for Internet of Things," IEEE ACT Section, Australian National University, Canberra, Australia, Nov. 6, 2014.
• A. Jayasumana presented a Distinguished Lecture of the IEEE Communications Society, "Network Aware Nodes: A Novel Self-Organization Approach for Internet of Things," IEEE Queensland Section and Queensland University of Technology, Brisbane, Australia, Nov. 3, 2014.
• A. Jayasumana presented a technical seminar on "Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale 2D and 3D Sensor Networks," University of Western Sydney, Penrith, NSW, Australia, Oct. 27, 2014.
• A. Jayasumana presented a technical seminar "On Modeling and Measurement of Networks and Network Based Information," NICTA, Sydney, NSW, Australia, Oct. 16, 2014.
• Gunjan Mahindre successfully defended her M.S. thesis entitled "Coordinate Repair and Medial Axis Detection in Virtual Coordinate Based Sensor Networks." August 28, 2014.
• A. Jayasumana and Tarun Banka organized and served as the general chairs of SDN-AA: IEEE Workshop on Software Defined Network Architecture and Applications (held in conjunction with IEEE WoWMoM 2014), Sydney, Australia, June 16, 2014.
• A. Jayasumana made an invited presentation on "Enhancing Collaborative Peer-to-Peer Systems using Resource Aggregation and Caching," at The 15th Annual International Conference on Collaboration Technologies and Systems (CTS 2014), Minneapolis, MN, May 19-23, 2014.

• A. Jayasumana presented a technical seminar on `Topology Coordinate Systems: A Novel Domain for Self-Organizing Large-Scale Sensor Networks,' at NICTA, Sydney, NSW, Australia, Oct. 28, 2013.
• Anura Jayasumana served as the General Chair of the 38th IEEE Conference on Local Computer Networks, Sydney, Australia, Oct. 21-24, 2013.
• Yi Jiang defended her M.S. Thesis on "Virtual and Topological Coordinate Based Routing, Mobility Tracking and Prediction in 2D and 3D Wireless Sensor Networks," Oct. 1, 2013.
• A. Jayasumana presented a technical seminar on `Topology Coordinate Systems: A Novel Domain for Self-Organizing; Large-Scale Sensor Networks,' at the Department of Electrical Computer Engineering, University of Wyoming, Laramie, WY, Sept. 6, 2013.
• Dr. AdeNiran Oluwaranti from Obafemi Awolowo University, Ile-ife, Osun State, Nigeria joined CNRL for his sabbatical in Fall 2013.
• A. Jayasumana presented a technical seminar on `Topology Coordinate Systems: A Novel Domain for Self-Organizing; Large-Scale Sensor Networks,' at the Department of Electrical Computer Engineering, Kansas State University, Manhattan, KS, July 23, 2013.
• A. Jayasumana presented a technical seminar on `Virtual Coordinate Based Techniques for Sensor Networks,' at the Institute for Software Integrated Systems, Vanderbilt University, Nashville, TN, May 7 2013.
• A. Jayasumana presented a Joint Seminar at University of Rennes I (IRISA) and Telecom Bretagne, Rennes, France, on 'Virtual Coordinate Based Techniques for Self-Orgnaization of Sensor Networks,' Feb.12 2013.
• A. Jayasumana presented a technical seminar on; 'Virtual Coordinate Based Techniques for Self-Orgnaization of Sensor Networks,' at the Department of Computer Science, University of Moratuwa, Sri Lanka, Jan 17, 2013.
• A. Jayasumana presented a technical seminar on 'Virtual Coordinate Based Techniques for Self-Orgnaization of Sensor Networks,' at the Department of Electrical and Information Engineering, University of Ruhuna, Galle, Sri Lanka, Jan 16, 2013.
• A. Jayasumana presented a keynote speech on 'Clueless Nodes to Smart Nodes: Achieving Network Awareness in Internet of Things,' at the; 9th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (Qshine 2013) , Greater Noida, India, January 11-12, 2013.
• A Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Sensor Networks,' Department of Information Technology, PSG College of Technology, Coimbatore, India, Jan 8, 2013.
• A Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Orgnaization of Sensor Networks,'; at the Department of Computer Science, PSG College of Technology, Coimbatore, India, Jan 7, 2013.
• A. Jayasumana presented a keynote speech on 'Clueless Nodes to Smart Nodes: Achieving Network Awareness in Internet of Things,' at the International Conference on Computer Communication and Informatics (ICCCI 2013), Coimbatore, India, January 4-6, 2013.

• Prtiam Shah defended his M.S. Thesis entitled "Virtual Coordinate based Techniques for Wireless Sensor Networks: A Simulation Tool and Localization Planarization Algorithms," Dec. 19, 2012.
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Orgnaization of Sensor Networks,' at the University of Florida, Gainesville, FL, October 30, 2012.
• A. Jayasumana presented a seminar on Virtual Coordinate Based Techniques for Sensor Networks,' at the University of Central Florida, Orlando, FL, October 29, 2012.
• Dilum Bandara defended his Ph.D. Thesis, "Enhancing Collaborative Peer-To-Peer Systems Using Resource Aggregation and Caching: A Multi-Attribute Resource and Query Aware Approach", October 17, 2012.
• A. Jayasumana presented a tutorial on 'P2P Networks: File Sharing to Collaborative Computing and Data Fusion' at the International Conference on Collaboration Technologies and Systems (CTS 2012), Westminister, CO May 21-25, 2012.
• A. Jayasumana presented a tutorial on 'P2P Networks: File Sharing to Collaborative Computing and Data Fusion,' at The International Conference on Collaboration Technologies and Systems (CTS 2012) presented Westminister, CO May 21-25, 2012
  
• Dulanjalie Dhanapala defended her Ph.D. Thesis, "Anchor Centric Virtual Coordinate Systems in Wireless Sensor Networks: From Self-Organization to Network Awareness", April 20, 2012.
• A. Jayasumana presented a tutorial on 'File Sharing to Resource Sharing – Evolution of P2P Networking', at the IEEE Consumer Communications and Networking Conference (CCNC) , Las Vegas, NV, Jan. 2012.

• Dulanjalie Dhanapala won the ISTeC Doctoral Student Scholar Award, 2011. The Information Science and Technology Center (ISTeC) Doctoral Student Scholar Award recognizes outstanding Ph.D. students who demonstrate the potential to make a significant impact in information science and technology (IS&T).
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Organization and Routing in Sensor Networks,' at the University of Minnesota, Minneapolis, MN, Nov. 10, 2011.
• Saket Doshi defended his M.S. Thesis on `Applications of Inertial Measurement Units In Monitoring Rehabilitation Progress of Arm in Stroke Survivors,' August 16, 2011
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Organization and Routing in Sensor Networks,' at Georgia Institute of Technology, Atlanta, GA, Aug 5, 2011.
• A. Jayasumana presented a seminar on 'Emerging Sensor Networking Technologies and their Applications in Environmental Monitoring,' at the USDA-ARS-NPA (Agricultural Systems Research Unit), Fort Collins, June 2, 2011.
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Organization and Routing in Sensor Networks,' at University of Connecticut, Storrs, CT, May 18, 2011.
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Organization and Routing in Sensor Networks,' at Cisco Systems, Milpitas, CA, March 23, 2011.
• Raghunandan Mandyam Narasiodeyar defended his M.S. Thesis on 'Impact of Resequencing Buffere Distribution on Packet Reordering, Jan 31 2011.
• A.Jayasumana made a presentation on 'Sensor Networks - Technology and Environmental Applications,' to National Research Council Committee for Hazardous Waste Site Cleanup, Santa Ana, CA, Jan. 24, 2011.
• A. Jayasumana presented a seminar on 'Virtual Coordinate Based Techniques for Self-Organization and Routing in Sensor Networks,' at University of California at Irvine, Irvine, CA, Jan. 24 2011
• "Topology Preserving Maps From Virtual Coordinates for Wireless Sensor Networks" by D. Dhanapala and A. Jayasumana won the Best Paper Award at LCN 2010- The 35th IEEE Conference on Local Computer Networks (LCN), October 2010.
• "An Outlier Detection Based Approach for PCB Testing," X. He, Y. K. Malaiya, A. P. Jayasumana, K. P. Parker and S. Hird, Proc. 40th International Test Conference (ITC09), Austin, Texas, November 2009, was among the finalists for the best paper award.