Research

Interests

• Trusted Computing
• Byzantine Fault Tolerance
• State Machine Replication
• Reliability of PaaS and MaaS Clouds

Projects

Former Projects

• REFIT: Resource-Efficient Fault and Intrusion Tolerance
• RailCloud: A PaaS Cloud for Safe Railway Applications
• BATS: Dynamic Adaptable Applications for Bats Tracking by Embedded Communicating Systems

Publications

2018

• Bijun Li, Nico Weichbrodt, Johannes Behl, Pierre-Louis Aublin, Tobias Distler and Rüdiger Kapitza: Troxy: Transparent Access to Byzantine Fault-Tolerant Systems, in Proceedings of the 48th International Conference on Dependable Systems and Networks, DSN'18, 2018 (bli2018troxy, BibTeX)
• Bijun Li, Wenbo Xu and Rüdiger Kapitza: Dynamic State Partitioning in Parallelized Byzantine Fault Tolerance, in Proceedings of the 1st Workshop on Byzantine Consensus and Resilient Blockchains, BCRB'18, 2018 (blidypart, BibTeX)
• Wenbo Xu, Signe Rüsch, Bijun Li and Rüdiger Kapitza: Hybrid Fault-Tolerant Consensus in Asynchronous and Wireless Embedded Systems, in 22nd International Conference on Principles of Distributed Systems (OPODIS 2018), Leibniz International Proceedings in Informatics (LIPIcs), pages 15:1-15:16, 2018 (xu2018opodis, DOI, BibTeX)

2017

• Bijun Li, Nico Weichbrodt, Johannes Behl, Pierre-Louis Aublin and Ruediger Kapitza: Troxy: Make Byzantine Fault Tolerance Systems Transparent, in 12th ACM European Conference on Computer Systems (EuroSys), Poster Session, 2017

2016

• Bijun Li and Rüdiger Kapitza: BFT-Dep: Automatic Deployment of Byzantine Fault-Tolerant Services in PaaS Cloud, in Proceedings of the 16th International IFIP Conference on Distributed Applications and Interoperable Systems, pages 109-114, Springer, 2016 (bli16dais, BibTeX)
• Bijun Li, Wenbo, Muhammad Zeeshan Abid, Tobias Distler and Rüdiger Kapitza: SAREK: Optimistic Parallel Ordering in Byzantine Fault Tolerance, in Proceedings of the 12th European Dependable Computing Conference (EDCC 2016), 2016 (bli16edcc, BibTeX)
• Falko Dressler, Margit Mutschlechner, Bijun Li, Rüdiger Kapitza, Simon Ripperger, Christopher Eibel, Benedict Herzog, Timo Hönig and Wolfgang Schröder-Preikschat: Monitoring Bats in the Wild: On Using Erasure Codes for Energy-Efficient Wireless Sensor Networks, in ACM Transactions on Sensor Networks (TOSN), Vol. 12, No. 1, pages 7:1-7:29, ACM, 2016 (dressler2016monitoring, DOI, BibTeX)

2014

• Margit Mutschlechner, Bijun Li, Ruediger Kapitza and Falko Dressler: Using Erasure Codes to Overcome Reliability Issues in Energy-Constrained Sensor Networks, in 11th IEEE/IFIP Conference on Wireless On demand Network Systems and Services (WONS 2014), Obergurgl, Austria, IEEE, April 2014 (mutschlechner2014using, BibTeX)
• Ki-Il Kim Bijun Li: A novel real-time scheme for (m, k)-firm streams in wireless sensor networks, in Wireless Networks, Vol. 20, No. 4, pages 719-731, Springer, 2014 (li2014novel, BibTeX)
• Florian Lukas, Bijun Li Moritzl Strübe and Rüdiger Kapitza: DrySim: Simulation-aided Deployment-specific Tailoring of Mote-class WSN Software, in Proceedings of the 17th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM '14, Montreal, QC, Canada, pages 3-11, ACM, 2014 (mswim14dry, DOI, BibTeX)

2013

• Bijun Li, Margit Mutschlechner, Ruediger Kapitza and Falko Dressler: Improving Transmission Reliability in Sensor Networks for Energy-Constrained Wildlife Monitoring, in 24th ACM Symposium on Operating Systems Principles (SOSP), Diversity Workshop, Poster Session, Farmington, PA, ACM, November 2013 (li2013improving, BibTeX)
• Bijun Li and Ki-Il Kim: A real-time routing protocol for (m, k)-firm streams in wireless sensor networks, in Intelligent Sensors, Sensor Networks and Information Processing, 2013 IEEE Eighth International Conference on, IEEE, pages 129-134, 2013 (li2013real, BibTeX)

2012

• Bijun Li Ki-Il Kim: A congestion control scheme for (m, k)-firm realtime streams in wireless sensor networks, in ICT Convergence (ICTC), 2012 International Conference on, IEEE, pages 593-594, October 2012 (kim2012congestion, BibTeX)
• Ki-Il Kim Bijun Li: A novel routing protocol for (m, k)-firm-based real-time streams in Wireless Sensor Networks, in Wireless Communications and Networking Conference (WCNC), 2012 IEEE, IEEE, pages 1715-1719, April 2012 (li2012novel, BibTeX)
• Ki-Il Kim Bijun Li: An Firm Real-Time Aware Fault-Tolerant Mechanism in Wireless Sensor Networks, in International Journal of Distributed Sensor Networks, Vol. 2012, Hindawi Publishing Corporation, 2012 (li2012firm, BibTeX)

2010

• MinJung Baek, SeUng Hyeon, Ki-Il Kim Bijun Li: Load balancing parameters for geographic routing protocol in wireless sensor networks, in Information Science and Engineering (ICISE), 2010 2nd International Conference on, IEEE, pages 2172-2175, December 2010 (li2010load, BibTeX)

Supervised Theses

Completed theses

Teaching

Summer Term 2018

• Cloud Computing

Summer Term 2017

• Cloud Computing

Winter Term 2016/2017

• Seminar Distributed Systems: "Secure Trusted Execution for Resilient Distributed Systems"

Summer Term 2016

• Cloud Computing

Winter Term 2015/2016

• Practical Course Cloud Computing
• Seminar Distributed Systems: "Trusted Execution and Fault Tolerance in Cloud Computing"

Winter Term 2014/2015

• Seminar Distributed Systems: "Consistency and Fault Tolerance in Geo-replicated Data Stores"
• Practical Course Cloud Computing

Summer Term 2014

• Seminar Distributed Systems: "Trusted Cloud Computing"

Winter Term 2013/2014

• Seminar Distributed Systems: "Wildlife Monitoring Using Wireless Sensor Networks"

• Team Project Distributed Systems: "Providing Application Support for Exploring the Social Behavior of Bats"