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Recent Publications

For citations to many of my publications and (in some cases) to obtain soft copies, please try Citeseer, Google Scholar or Microsoft Libra. For citations to publications by my alter-ego, please see Libra 2. (Please skip publications from the medical domain in the Google Scholar search results - I am a different kind of doctor, and you do not want to get medical advice from me!)

Please choose from the following categories (please do not be surprised; all these lie in the real-time embedded systems, i.e. cyber-physical systems, space):

  Books
  Book Chapters
  Cyber-Physical Systems:

• Automotive Systems and Vehicular (V2V) Networks
• Wireless Sensor Networks
• Multicore Resource Management
• Resource Kernels
• Quality of Service Management (Q-RAM)
• SysWeaver (used to be TimeWeaver)

  Real-Time Queueing Theory
  The Real-Time Publisher/Subscriber Model
  Other Selected Publications

Books

• R. Rajkumar, "Synchronization in Real-Time Systems: A Priority Inheritance Approach", Kluwer Academic Publishers, ISBN 0-7923-9211-6, 1991, 208 pp.
• R. Rajkumar, Editor, “Operating Systems and Services”, Kluwer Academic Publishers, ISBN 0-7923-8548-9, August 1999, 204 pp.

Book Chapters

• Dionisio de Niz, Gaurav Bhatia and R. Rajkumar, "Separation of Concerns in Model-Based Development of Distributed Real-Time Systems", Behavioral Modeling for Embedded Systems and Technologies: Applications for Design and Implementation, Information Science Reference, Lums Gomes and Joco M. Fernandes, Editors, ISBN 978-1-60566-750-8, IGI Global, July 2009.
• Anthony Rowe, Rahul Mangharam, R. Rajkumar, "FireFly: A Time Synchronized Real-Time Sensor Networking Platform", Wireless Ad Hoc Networking: Personal-Area, Local-Area, and the Sensory-Area Networks, CRC Press, November 2006. [pdf]
• R. Rajkumar, K. Juvva, A. Molano and S. Oikawa, "Resource Kernels: A Resource-Centric Approach to Real-Time Systems", In Readings in Multimedia Computing and Networking, Editors: Kevin Jeffay, and HongJiang Zhang, Morgan Kaufman Publishers, Summer 2001.
• F. Jahanian, R. Rajkumar and S. Raju, "A Run-Time Monitor for Distributed Real-Time Systems", published in The IEEE Tutorial Monitoring and Debugging of Distributed Real-time Systems, Tsai and Yang, Editors, ISBN 0-8186-6537-8, 1995.
• R. Rajkumar, L. Sha, J.P. Lehoczky and K. Ramamritham, "An Optimal Priority Inheritance Policy For Synchronization in Real-Time Systems", pages 249-271, In Advances in Real-Time Systems, Prentice nHall, S. Son, Editor, ISBN 0-13-083348-7, 1995.
• F. Jahanian, R. Rajkumar and S. Raju, "Runtime Monitoring of Timing Constraints in Distributed Real-Time Systems", In Responsive Computing, Kluwer Academic Publishers, ISBN 0-7923-9511-5, M. Malek, Editors, September 1994.
• L. Sha and R. Rajkumar, "Rate-Monotonic Analysis", pages 984-991,In Encyclopedia of Software Engineering, Volume 2, published by John Wiley and Sons, ISBN 0-471-54004-8, 1994.
• K. Ekanadham, S. Gregor, K. Hiraki, R. A. Iannucci and R. Rajkumar, "An Architecture for Generalized Synchronization and Efficient Context-Switching", pages 285-316, In Multi-Threaded Architectures, Kluwer Academic Publishers, R. A. Iannucci, Editor, ISBN 0-7923-9477-1, Sept. 1993.
• L. Sha, R. Rajkumar and J. P. Lehoczky, "Priority Inheritance Protocols: An Approach to Real-Time Synchronization", In Advances in Hard Real-Time Systems - A Tutorial, Stankovic and Ramamritham, Editors, IEEE Computer Society Press, Washington D.C., September 1993.
• L. Sha, R. Rajkumar, J. P. Lehoczky, K. Ramamritham, "Mode Changes in a Prioritized Preemptive Scheduling Environment", In Advances in Hard Real-Time Systems, Stankovic and Ramamritham, Editors, IEEE Computer Society Press, Washington D.C., September 1993.
• Co-Editor, Chapter on "Real-Time Systems", the IEEE Standards book 0896.3-1993 IEEE Recommended Practice for FutureBus+, ISBN 1-5593-7434-9, 1993.

Cyber-Physical Systems

Wireless/Sensor Networks

• Vikram Gupta, Eduardo Tovar, Karthik Lakshmanan, Ragunathan (Raj) Rajkumar, "A Framework for Programming Sensor Networks with Scheduling and Resource-Sharing Optimizations", Proceedings of the 1st International Workshop on Cyber-Physical Systems, Networks, and Applications (CPSNA 2011), August 2011. Invited Paper.
• John Yackovich, Daniel Mosse, Anthony Rowe and Raj Rajkumar, "Making WSN TDMA Practical: Stealing Slots Up and Down the Tree," 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2011), August 2011.
• Vikram Gupta, Junsung Kim, Aditi Pandya, Karthik Lakshmanan, R. Rajkumar, and Eduardo Tovar, "Nano-CF: A Coordination Framework for Macro-programming in Wireless Sensor Networks", IEEE Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), 2011.
• Vikram Gupta, Eduardo Tovar, Luis Miguel Pinho, Junsung Kim, Karthik Lakshmanan, and R. Rajkumar, "sMapReduce: A Programming Pattern for Wireless Sensor Networks", 2nd International Workshop on Software Engineering for Sensor Network Applications (SESENA 2011), ICSE 2011.
• Anthony Rowe, Mario Berges, Ragunathan (Raj) Rajkumar, "Contactless Sensing of Appliance State Transitions," 2nd ACM Workshop On Embedded Sensing Systems For Energy-Efficiency In Buildings (BuildSys), held in conjunction with ACM SenSys, November 2010. Best Paper Award
• Anthony Rowe, Karthik Lakshmanan, Haifeng Zhu, R. Rajkumar, "Rate-Harmonized Scheduling and Its Applicability to Energy Management," IEEE Transactions on Industrial Informatics, Special Section on Power-Aware Computing, June 2010.
• Anthony Rowe, Mario Berges, Gaurav Bhatia, Ethan Goldman, Raj Rajkumar, Lucio Soibelman, James H. Garrett, Jose M. F. Moura. "Sensor Andrew: Large-Scale Campus-Wide Sensing and Actuation." IBM Journal of Research and Development: Special Issue on Smarter Cities and Sensed Infrastructures, 2010.
• A. Kandhalu, K. Lakshmanan and R. Rajkumar, "U-Connect: A Low-Latency Energy-Efficient Asynchronous Neighbor Discovery Protocol", 9th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN), April 2010.
• Anthony Rowe, Vikram Gupta, Ragunathan (Raj) Rajkumar, "Low-power Clock Synchronization using Electromagnetic Energy Radiating from AC Power Lines", Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems (Sensys), November 2009. Best Paper Award. [pdf]
• Arvind Kandhalu, Anthony Rowe and Ragunathan (Raj) Rajkumar, "DSPcam: A Camera Sensor System for Surveillance Networks", IEEE International Conference on Distributed Smart Cameras (ICDSC), 2009.
• Branden Archer, Shivakumar Sastry, Anthony Rowe, Ragunathan (Raj) Rajkumar, "Profiling Primitives of Networked Embedded Automation," Proceedings of the Fifth Annual IEEE Conference on Automation Science and Engineering (CASE 2009), August 2009.
• Arvind Kandhalu, Anthony Rowe, Raj (Ragunathan) Rajkumar, Chingchun Huang and Chao-Chun Yeh, "Real-Time Video Surveillance over IEEE 802.11 Mesh Networks", Proceedings of the IEEE Real-Time Embedded Technology and Applications Symposium (RTAS), April 2009. [pdf]
• Anthony Rowe, Karthik Lakshmanan, Haifeng Zhu, R. Rajkumar, "Rate-Harmonized Scheduling for Saving Energy", Proceedings of the IEEE Real-Time Systems Symposium (RTSS), December 2008. [pdf]
• Anthony Rowe, Karthik Lakshmanan, R. Rajkumar, "SAMPL: A Simple Aggregation and Message Passing Layer", Proceedings of the Wireless Internet Conference (WICON), November 2008. Invited Paper. [pdf]
• Anthony Rowe, Mario Berges, Gaurav Bhatia, Ethan Goldman, Raj Rajkumar, Lucio Soibelman, James Garrett, Jose M. F. Moura, "Sensor Andrew: Large-Scale Campus-Wide Sensing and Actuation," Carnegie Mellon Technical Report, ECE-TR-08-11 2008.
• Anthony Rowe, Dhiraj Goel and R. Rajkumar, "FireFly Mosaic: A Vision-Enabled Wireless Sensor Networking System", Proceedings of the IEEE Real-Time Systems Symposium (RTSS), December 2007. [pdf]
• R. Mangharam, A. Rowe and R. Rajkumar, “FireFly: A Cross-Layer Platform for Wireless Sensor Networks", Real Time Systems Journal, Special Issue on Real-Time Wireless Sensor Networks, 2007.
• A. Rowe, R. Mangharam and R. Rajkumar, “RT-Link: Global Time-Synchronized Link Protocols for Energy Constrained Multi-hop Wireless Networks”, Elsevier Ad hoc Networks, Special Issue on Energy-Efficient Design in Wireless Ad hoc and Sensor Networks, Q4 2007, Invited Journal Paper.
• Anthony Rowe, Zane Starr and R. Rajkumar,“Using Micro-Climate Sensing to Enhance RF Localization in Assisted Living Environments”, Proceedings of IEEE Systems, Man and Cybernetics, 2007. [pdf]
• R. Mangharam, A. Rowe and R. Rajkumar, “Voice over Sensor Networks”, 27th IEEE Real-Time Systems Symposium (RTSS), December 2006.
[pdf]
• R. Mangharam and R. Rajkumar, “MAX: A Maximal Transmission Concurrency MAC for Wireless Networks with Regular Structure”, IEEE Third International Conference on Broadband Communications, Networks and Systems (IEEE BROADNETS), San Jose, CA, October 2006.
• A. Rowe, R. Mangharam and R. Rajkumar, “RT-Link: A Time-Synchronized Link Protocol for Energy Constrained Multi-hop Wireless Networks”, Third IEEE International Conference on Sensors, Mesh and Ad Hoc Communications and Networks (IEEE SECON), Reston, VA, September 2006. Best Paper Award. [pdf]
• A. Eswaran, A. Rowe and R. Rajkumar, “nano-RK: An Energy-Aware Resource-Centric Operating System for Sensor Networks”, Proceedings of the 26^th IEEE Real-Time Systems Symposium, December 2005. [pdf]
• R. Mangharam, S. Pollin, B. Bougard, R. Rajkumar, F. Catthoor, L. Van der Perre, I. Moerman, "Optimal fixed and scalable energy management for wireless networks”, IEEE Conference on Computer Communications (INFOCOM'05) , Miami, Fl, USA, March 2005. [pdf]
• S. Pollin, R. Mangharam, B. Bougard, R. Rajkumar, F. Catthoor, L. Van der Perre, I. Moerman, “MEERA: Cross-Layer Methodology for Energy-Efficient Resource Allocation for Wireless Networks”, IEEE Transactions on Wireless Communications, Volume 6, Issue 2, Feb. 2007, pp. 617 - 628.
• S.Pollin, B. Bougard, R. Mangaram, F. Catthoor, R. Rajikumar, I. Moerman, L. Van der Perre, “Optimizing transmission and shutdown for enegy-efficient real-time packet scheduling in clustered ad hoc networks”, EURASIP Journal on Wireless Communications and Networking, Special Issue on Cross-layer Design for Ad Hoc Networks: Cross-Layer Issues, 2005. [pdf]
• S. Pollin, B. Bougard, R. Mangharam, L. Van der Perre, F. Catthoor, R. Rajikumar, I. Moerman, “Optimizing transmission and shutdown for energy-efficient packet scheduling in sensor networks”, European Workshop on Wireless Sensor Networks (EWSN), Istanbul, Turkey, Jan 31-Feb 2, 2005. [pdf]
• R. Mangharam, M. Demirhan, R. Rajkumar, and D. Raychaudhuri, "Size matters: Size-based scheduling for MPEG-4 over wireless channels", SPIE/ACM Symposium on Multimedia Computing and Networking, Vol. 3020 pp. 110-122, San Jose, CA, January 2004. [pdf]

Automotive Systems and Vehicular (V2V) Networks

• Seyed Reza Azimi, Gaurav Bhatia, Ragunathan (Raj) Rajkumar, Priyantha Mudalige, "Vehicular Networks for Collision Avoidance at Intersections" Society for Automotive Engineers (SAE) 2011 World Congress and Exhibition, April 2011.
• Karthik Lakshmanan, Gaurav Bhatia, Ragunathan (Raj) Rajkumar, "AUTOSAR Extensions for Predictable Task Synchronization in Multi-Core ECUs", Society for Automotive Engineers (SAE) 2011 World Congress and Exhibition, April 2011. [pdf].
• Junsung Kim, Gaurav Bhatia, Raj Rajkumar, and Markus Jochim, "An AUTOSAR-Compliant Automotive Platform for Meeting Reliability and Timing Constraints", Society for Automotive Engineers (SAE) 2011 World Congress and Exhibition, April 2011. [pdf].
• Karthik Lakshmanan, Gaurav Bhatia and R. Rajkumar, "Integrated End-to-End Timing Analysis of Networked AUTOSAR-Compliant Systems", 13th Design, Automation and Test in Europe Conference (DATE), March 2010. [pdf].
• Yong Hoon Choi, Ragunathan (Raj) Rajkumar, Priyantha Mudalige and Fan Bai, "Adaptive Location Division Multiple Access for Reliable Safety Message Dissemination in VANETs", Globecom, 2009.
• C. Urmson, J. Anhalt, D. Bagnell, C. Baker, R. Bittner, M. Clark, J. Dolan, D. Duggins, D. Ferguson, T. Galatali, C. Geyer, M. Gittleman, S. Harbaugh, M. Hebert, T. Howard, A. Kelly, N. Miller, M.McNaughton, K. Peterson, M. Likhachev, R. Rajkumar, P. Rybski, B. Salesky, Y. Seo, S. Singh, J. Snider, A. Stentz, W. Whittaker, Z. Wolkowicki, J. Ziglar, H. Bae, T. Brown, D. Demitrish, B. Litkouhi, J. Nickolaou, V. Sadekar, W. Zhang J. Struble, M. Taylor, M. Darms, "Autonomous Driving in Urban Environments: Boss and the Urban Challenge", Journal of Field Robotics, July 2008.
• R. Mangharam, R. Rajkumar, M. Hamilton, P. Mudalige and Fan Bai, "Bounded-Latency Alerts in Vehicular Networks", IEEE INFOCOM, Anchorage, USA. May 2007.
• R. Mangharam, D. S. Weller, R. Rajkumar, Priyantha Mudalige and Fan Bai, “GrooveNet: A Hybrid Simulator for Vehicle-to-Vehicle Networks”, Second International Workshop on Vehicle-to-Vehicle Communications (V2VCOM), July 2006. Invited Paper.
• R. Mangharam, D. S. Weller, D. Stancil, R. Rajkumar, J. S. Parikh, “GrooveSim: A Topography-Accurate Simulator for Geographic Routing in Vehicular Networks”, Proceedings of the Second ACM International Workshop on Vehicular Ad hoc Networks (Mobicom/VANET 2005), Cologne, Germany. September 2005. [pdf]
• R. Mangharam, J. Meyers, R. Rajkumar, D. Stancil, J. Parikh, H. Krishnan, and C. Kellum, “A Multi-hop Mobile Networking Test-bed for Telematics”, Society for Automotive Engineers (SAE) World Congress. Detroit, USA. April 2005. [pdf]

Multi-Core Resource Management

• S. Kato, Y. Ishikawa, and R. Rajkumar, "CPU Scheduling and Memory Management for Interactive Real-Time Applications", Real-Time Systems Journal, 2011. (Accepted for publication)
• S. Kato, K. Lakshmanan, A. Kumar, M. Kelkar, Y. Ishikawa, and R. Rajkumar. "RGEM: A Responsive GPGPU Execution Model for Runtime Engines", Proceedings of the 32nd IEEE Real-Time Systems Symposium (RTSS'11), pp. 57-66, December 2011.
• S. Kato, S. Brandt, Y. Ishikawa, and R. Rajkumar. "Operating Systems Challenges for GPU Resource Management", Proceedings of the 7th International Workshop on Operating Systems Platforms for Embedded Real-Time Applications (OSPERT'11), pp. 23-32, 2011. Invited Paper.
• S. Kato, K. Lakshmanan, R. Rajkumar, and Y. Ishikawa, "TimeGraph: GPU Scheduling for Real-Time Multi-Tasking Environments", USENIX Annual Technical Conference (USENIX ATC'11), 2011.
• Shinpei Kato, Karthik Lakshmanan, Yutaka Ishikawa, Raj Rajkumar, "Resource Sharing in GPU-accelerated Window Systems", 17th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), April 2011.
• Karthik Lakshmanan, Dionisio de Niz, Raj Rajkumar, "Mixed-Criticality Task Synchronization in Zero-Slack Scheduling", 17th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), Chicago, April 2011.
• K. Lakshmanan, D. de Niz, R. Rajkumar, and G. Moreno, "Resource Allocation in Distributed Mixed-Criticality Cyber-Physical Systems", 30th IEEE International Conference of Distributed Computing Systems (ICDCS), June 2010.
• Karthik Lakshmanan, Shinpei Kato, Ragunathan (Raj) Rajkumar, "Scheduling Parallel Real-Time Tasks on Multi-core Processors", Proceedings of the 31st IEEE Real-Time Systems Symposium (RTSS), 2010.
• Junsung Kim, Karthik Lakshmanan, Raj Rajkumar, "R-BATCH: Task Partitioning for Fault-tolerant Multiprocessor Real-Time Systems", 10th IEEE International Conference on Computer and Information Technology, 2010.
• S. Kato, R. Rajkumar, and Y. Ishikawa, "AIRS: Supporting Interactive Real-Time Applications on Multicore Platforms", Euromicro Conference on Real-Time Systems (ECRTS'10), pp. 47-56, 2010.
• Karthik Lakshmanan, Shinpei Kato, R. Rajkumar, "Problems in Scheduling Self-Suspending Tasks", Proceedings of the 1st International Real-Time Scheduling Open Problems Seminar, European Conference on Real-Time Systems, July 2010.
• J. Kim, K. Lakshmanan, R. Rajkumar, "Task Partitioning for Fault-tolerant Multiprocessor Real-Time Systems" , 7th International Conference on Embedded Software and Systems (ICESS), June 2010.
• Karthik Lakshmanan, Dionisio de Niz and Ragunathan (Raj) Rajkumar, "Coordinated Task Scheduling, Allocation and Synchronization on Multiprocessors", Proceedings of the IEEE Real-Time Systems Symposium, December 2009. Best Student Paper Award.
• Dionisio de Niz, Karthik Lakshmanan, and Ragunathan (Raj) Rajkumar, "On the Scheduling of Mixed-Criticality Real-Time Task Sets", Proceedings of the IEEE Real-Time Systems Symposium, December 2009.
• Karthik Lakshmanan, R. Rajkumar and John P. Lehoczky, "Partitioned Fixed-Priority Preemptive Scheduling for Multi-Core Processors", Proceedings of the 21st Euromicro Conference on Real-Time Systems (ECRTS), July 2009.
• S. Kato, R. Rajkumar, and Y. Ishikawa. "A Loadable Real-Time Scheduler Suite for Multicore Platforms", Technical Report CMU-ECE-TR09-12, Carnegie Mellon University, December, 2009.

Resource Kernels

• Luis Almeida, Ricardo Marau, Karthik Lakshmanan, R. Rajkumar, "On the schedulability analysis for dynamic QoS management in distributed embedded systems", In Proceedings of the 8th Workshop on Software Technologies for Future Embedded and Ubiquitous Systems, Oct 2010.
• R. Marau, L. Almeida, P. Pedreiras, K. Lakshmanan and R. Rajkumar, "Utilization-based Schedulability Analysis for Switched Ethernet aiming Dynamic QoS Management" , 15th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), September 2010.
• K. Lakshmanan and R. Rajkumar, "Scheduling Self-Suspending Real-Time Tasks with Rate-Monotonic Priorities", 16th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), April 2010.
• S. Kato, R. Rajkumar, and Y. Ishikawa, "A Loadable Real-Time Scheduler Suite for Multicore Platforms", Technical Report CMU-ECE-TR09-12, Carnegie Mellon University, December 2009.
• Karthik Lakshmanan and R. Rajkumar, "Distributed Resource Kernels: OS Support for End-To-End Resource Isolation", Proceedings of the IEEE Real-time and Embedded Technology and Applications Symposium (RTAS), pp.~195-204, April 2008.
• Saowanee Saewong and Ragunathan (Raj) Rajkumar, "Coexistence of Real-Time and Interactive and Batch Tasks in DVS Systems", Proceedings of the IEEE Real-time and Embedded Technology and Applications Symposium (RTAS), April 2008.
• Saowanee Saewong and Ragunathan Rajkumar, “Multi-Granularity Resource Reservations”, Proceedings of the 26^th IEEE Real-Time Systems Symposium, December 2005.
• Anand Eswaran and R. Rajkumar, “Energy-Aware Memory Firewalling for QoS-Sensitive Applications”, Proceedings of the The 17th Euromicro Conference on Real-Time Systems, July 2005.
• Saowanee Saewong and Ragunathan Rajkumar, “Practical Voltage-Scaling for Fixed-Priority RT-Systems”, In Proceedings of the 9^th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), May 2003. [postscript]
• Akihiko Miyoshi, Charles Lefurgy, Eric Van Hensbergen, Ram Rajamony, and Ragunathan Rajkumar, “Critical Power Slope: Understanding the Runtime Effects of Frequency Scaling”, In Proceedings of the 16th Annual ACM International Conference on Supercomputing, New York, New York, June 2002. [[postscript]]
• Sourav Ghosh and Ragunathan Rajkumar, “Resource Management of the OS Network Subsystem”, In Proceedings of the IEEE International Symposium on Object-oriented Real-time distributed Computing, April 2002. [postscript]
• Saowanee Saewong and Ragunathan Rajkumar, “Hierarchical Reservation Support in Resource Kernels”, In Proceedings of the IEEE Real-Time Systems Symposium, December 2001. [postscript]
• Dionisio de Niz, Luca Abeni, Saowanee Saewong, and R. Rajkumar, “Resource Sharing in Reservation-Based Systems”, In Proceedings of the IEEE Real-Time Systems Symposium, December 2001. [postscript.
• Akihiko Miyoshi and R. Rajkumar, “Protecting Resources with Resource Control Lists”, In Proceedings of 7th IEEE Real-Time Techonology and Applications Symposium, Taipei, Taiwan, May 2001. [postscript]
• Dionisio de Niz, Luca Abeni, Saowanee, Saewong, and R. Rajkumar, “Resource Sharing in Reservation-Based Systems”, In Work-in-Progress, 7th IEEE Real-Time Technology and Applications Symposium, Taipei, Taiwan, May 2001. [postscript]
• Scott Johnson, Farnam Jahanian, Akihiko Miyoshi, Dionisio de Niz, and Ragunathan Rajkumar, “Constructing Real-time Middleware Using the Resource Kernel”, In Proceedings of the IEEE 21st Real-time Systems Symposium, Orlando Florida, Dec 2000.
• Dionisio de Niz and R. Rajkumar, “Chocolate: A Reservation-Based Real-Time Java Environment on Windows NT“, In Proceedings of the IEEE Real-time Technology and Applications Symposium, Washington D.C., June 2000. [postscript]
• Sourav Ghosh and R. Rajkumar, “Practical Management of End-to-End Network Bandwidth Reservation”, November 1999. [postscript]
• Shui Oikawa and R. Rajkumar, “Portable RK: A Portable Resource Kernel for Guaranteed and Enforced Timing Behavior”, In Proceedings of the IEEE Real-Time Technology and Applications Symposium, Vancouver, June 1999. [postscript]
• Shui Oikawa and R. Rajkumar, “Linux/RK: A Portable Resource Kernel in Linux”, In IEEE Real-Time Systems Symposium Work-In-Progress, Madrid, December 1998. [postscript]
• R. Rajkumar, Kanaka Juvva, Anastasio Molano and Shui Oikawa, “Resource Kernels: A Resource-Centric Approach to Real-Time Systems”, In Proceedings of the SPIE/ACM Conference on Multimedia Computing and Networking, January 1998. [postscript]
• Anastasio Molano, R. Rajkumar and Kanaka Juvva, “Dynamic Disk Bandwidth Management and Metadata Pre-fetching in a Reserved Real-Time Filesystem”, In 10th Euromicro Workshop on Real-Time Systems, June 1998.
• Anastasio Molano, Kanaka Juvva and R. Rajkumar, “Real-Time Filesystems: Guaranteeing Timing Constraints for Disk Accesses in RT-Mach”, In Proceedings of the IEEE Real-Time Systems Symposium, December 1997. [postscript]
• Chen Lee, Katsuhiko Yoshida, Cliff Mercer and R. Rajkumar, “Predictable Communication Protocol Processing in Real-Time Mach”, In Proceedings of the Real-time Technology and Applications Symposium, June 1996. [postscript]
• Chen Lee, R. Rajkumar and Cliff Mercer, “Experiences with Processor Reservation and Dynamic QOS in Real-Time Mach”, In Proceedings of Multimedia Japan, March 1996. [postscript]
• Clifford W. Mercer and Ragunathan Rajkumar, “An Interactive Interface and RT-Mach Support for Monitoring and Controlling Resource Management”, In Proceedings of the Real-Time Technology and Applications Symposium, May 1995. [postscript]
• Clifford W. Mercer, Jim Zelenka, and Ragunathan Rajkumar, “On Predictable Operating System Protocol Processing”, Technical Report CMU-CS-94-165, School of Computer Science, Carnegie Mellon University, May 1994. [postscript]
• Cliff Mercer, Ragunathan Rajkumar, and Jim Zelenka, “Temporal Protection in Real-Time Operating Systems”, In Proceedings of the 11th IEEE Workshop on Real-Time Operating Systems and Software, May 1994. [postscript]
• Clifford W. Mercer, Ragunathan Rajkumar, and Hideyuki Tokuda, “Applying Hard Real-Time Technology to Multimedia Systems”, In Proceedings of the ..., December 1993. [postscript]

Quality of Service Management

• Sourav Ghosh and Ragunathan Rajkumar and Jeffery P. Hansen and John P. Lehoczky, “Integrated QoS-aware resource management and scheduling with multi-resource constraints”, Real-Time Systems Journal, Vol. 33, No. 1-3, pages 7-46, 2006.
• Sourav Ghosh, Ragunathan Rajkumar, Jeffery Hansen, John Lehoczky, “Scalable QoS-Based Resource Allocation in a Hierarchical Networked Environment”, In Proceedings of the 11th IEEE Real-time Technologies and Applications Symposium, 2005. [pdf]
• Sourav Ghosh, Ragunathan Rajkumar, Jeffery Hansen and John Lehoczky, “Integrated Resource Management and Scheduling with Multi-Resource Constraints”, In Proceedings of the 25th IEEE Real-Time Systems Symposium (RTSS), December 2004. Best Paper Award.
• Sourav Ghosh, Jeffery Hansen, Ragunathan Rajkumar and John Lehoczky, “Adaptive QoS Optimizations for Radar Tracking”, In Proceedings of the 10th International Conference on Real-Time and Embedded Computing Systems (RTCSA 2004).
• Sourav Ghosh, Ragunathan Rajkumar, Jeff Hansen and John Lehoczky, “Scalable Resource Allocation for Multi-Processor QoS Optimization”, In Proceedings of the 8th International Conference on Distributed Computing Systems (ICDCS 2003), Jun 3 2003. [postscript]
• Jeff Hansen, Sourav Ghosh, Ragunathan Rajkumar and John Lehoczky, “Resource Management of Highly Configurable Tasks”, Proceedings of the 12th International Workshop on Parallel and Distributed Real-Time Systems (WPDRTS), 2004. Best Paper Award. [postscript]
• Jeffery P. Hansen, John Lehoczky and Ragunathan Rajkumar, “Optimization of Quality of Service in Dynamic Systems”, In Proceedings of the 9th International Workshop on Parallel and Distributed Real-Time Systems, April 2001, [pdf]
• Chen Lee, John Lehoczky, Dan Siewiorek, R. Rajkumar and Jeff Hansen, “A Scalable Solution to the Multi-Resource QoS Problem”, In Proceedings of the 20th IEEE Real-Time Systems Symposium, December 1999. [Postscript]
• Chen Lee, John Lehoczky, R. Rajkumar and Dan Siewiorek, “On Quality of Service Optimization with Discrete QoS Options”, In Proceedings of the IEEE Real-time Technology and Applications Symposium, June 1999. [postscript]
• R. Rajkumar, Chen Lee, John Lehoczky and Dan Siewiorek, “Practical Solutions for QoS-based Resource Allocation Problems”, In Proceedings of the IEEE Real-Time Systems Symposium, December 1998. [postscript]
• R. Rajkumar, Chen Lee, John Lehoczky and Dan Siewiorek, “A Resource Allocation Model for QoS Management”, In Proceedings of the IEEE Real-Time Systems Symposium, December 1997. [postscript]

Real-Time Queueing Theory (RT-QT)

• Haifeng Zhu, Jeffery P. Hansen, John P. Lehoczky, Ragunathan Rajkumar, “RETINA: An Analytical Tool for Real-Time Network Engineering”, In Proceedings of the 13th Workshop on Parallel and Distributed Real-Time Systems, 2005.
• Haifeng Zhu, John Lehoczky, Jeffery Hansen, Ragunathan Rajkumar, “Diff-EDF: Differentiated EDF Service”, In Proceedings of the 11th IEEE Real Time Technologies and Applications Symposium, 2005.
• Haifeng Zhu, John P. Lehoczky, Jeffery P. Hansen, Ragunathan Rajkumar, “Design Trade-Offs for Networks with Soft End-to-End Timing Constraints'”, In Proceedings of the 10th IEEE Real-Time Technologies and Applications Symposium, May 2004.
• Jeffery P. Hansen, Haifeng Zhu, John Lehoczky, Ragunathan Rajkumar, “Quantized EDF Scheduling in a Stochastic Environment'”, In Proceedings of the 10th International Workshop on Parallel and Distributed Real-Time Systems, April 2002.
• Jeffery P. Hansen, Haifeng Zhu, John Lehoczky, Ragunathan Rajkumar, “Partitioning Considerations for Quantized EDF Scheduling”, In Journal on Parallel and Distributed Computing Practices, vol. 5, no. 1, March 2002.
• Haifeng Zhu, Jeffery P. Hansen, John Lehoczky, Ragunathan Rajkumar, “Optimal Partitioning for Quantized EDF Scheduling”, In Proceedings of the 23rd IEEE Real-Time Systems Symposium, December 2002.
• Jeffery P. Hansen, Haifeng Zhu and Ragunathan Rajkumar, “Probabilistic Bandwidth Reservation by Resource Priority Multiplexing”, In Proceedings of the 7th IEEE Real-Time Technologies and Applications Symposium, July 2001.

SysWeaver (used to be "TimeWeaver")

• Anthony Rowe, Gaurav Bhatia, Ragunathan (Raj) Rajkumar, "A Model-Based Design Approach for Wireless Sensor-Actuator Networks," The First Analytic Virtual Integration of Cyber-Physical Systems Workshop (AVICPS), held in conjunction with RTSS, November 2010. [pdf].
• Dionisio de Niz and R. Rajkumar, “Partitioning Bin-Packing Algorithms for Distributed Real-Time Systems”, International Journal of Embedded Systems, Special Issue on Design and Verification of Real-Time Embedded Software. 2005. Invited Paper. [pdf]
• Dionisio de Niz and Ragunathan Rajkumar, “Glue Code Generation:Closing the Loophole in Model-based Development”, In 10th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), Workshop on Model-Driven Embedded Systems (MDES 2004).
• Dionisio de Niz and Ragunathan Rajkumar, “Time Weaver: A Software-Through-Models Framework For Embedded Real-Time Systems”, Language Compilers and Tools For Embedded Systems (LCTES), 2003.
• Dionisio de Niz and R. Rajkumar, “A Reusable Component Framework for Embedded Real-Time Systems”, May 2002.

The Real-Time Publisher/Subscriber Model

• Kanaka Juvva and R. Rajkumar, “A Middleware Service for Real-Time Push-Pull Communications”, In Proceedings of IEEE Workshop on Dependable Real-Time E-Commerce Systems (DARE'98), June 1998.
• R. Rajkumar, Mike Gagliardi and Lui Sha, “The Real-Time Publisher/Subscriber Inter-Process Communication Model for Distributed Real-Time Systems: Design and Implementation”, In Proceedings of the IEEE Real-time Technology and Applications Symposium, June 1995. [postscript]
• Mike Gagliardi, R. Rajkumar and Lui Sha, “Designing for Evolvability: Building Blocks for Evolvable Real-Time Systems”, In Proceedings of the IEEE Real-time Technology and Applications Symposium, June 1996. [postscript]
• R. Rajkumar and Mike Gagliardi, “High Availability in The Real-Time Publisher/Subscriber Inter-Process Communication Model”, In Proceedings of the IEEE Real-Time Systems Symposium, December 1996. [postscript]

Other Selected Publications

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