Contact information:

Tel: 1-434-825-3115
email: l i n g u @ c s . v i r g i n i a . e d u
(Please remove the spaces when using the email address)

I am interested in research and development in various areas in computer science, including operating systems, wireless sensor networks, embedded systems, and programming support for general networked low-power computing devices. I received Ph.D. from University of Virginia in 2006. Before that, I received B.S. from Fudan University and M.S. from Peking University, and worked in Huatek and Microsoft. For detailed information, please see my Curriculum Vitae.

Awards (since college)

• Best Paper Award of SenSys'06 (2006)

• Outstanding Graduate Student Research Assistant of the CS department (UVa, 2006)

• Best Student Paper Award of RTAS'04 (2004)

• Outstanding Graduate of Peking University (2001)

• Kodak Fellowship (2000-2001)

• Triple-Merit Student (Outstanding Student) of Peking University(1999-2000)

• Employee of the Month at Microsoft, Shanghai (May 1998)

• People's Awards III (1994)

• Motorola Fellowship(1993)

• People's Awards II (1993)

Publications

Conference Papers

• (Best Paper Award) L. Gu and J. A. Stankovic, t-kernel: Providing Reliable OS Support for Wireless Sensor Networks (Draft). In Proc. of the 4^th ACM Conf. on Embedded Networked Sensor Systems (SenSys'06), Nov., 2006.

• S. Lin, J. Zhang, G. Zhou, L. Gu, T. He and J. A. Stankovic, ATPC: Adaptive Transmission Power Control for Wireless Sensor Networks. In Proc. of the 4th ACM Conference on Embedded Networked Sensor Systems (SenSys'06), Nov., 2006

• L. Gu and J. A. Stankovic. (Demo Abstract) Demo: A Virtualizing OS Kernel for Wireless Sensor Networks. In Proc. of the 4^th ACM Conf. on Embedded Networked Sensor Systems (SenSys’06), Nov., 2006.

• T. He, P. A. Vicaire, T. Yan, L. Luo, L. Gu, G. Zhou, R. Stoleru, Q. Cao, J. A. Stankovic and T. Abdelzaher. Achieving Real-Time Target Tracking Using Wireless Sensor Networks. In Proc. of the 12^th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS’06), Apr. 2006

• L. Luo, T. He, G. Zhou, L. Gu, T. Abdelzaher and J. A. Stankovic. Achieving Repeatability of Asynchronous Events in Wireless Sensor Networks with EnviroLog. In Proc. of the 25^th IEEE Conf. on Computer Communications (InfoCom’06), April, 2006

• T. He, P. Vicaire, T. Yan, Q. Cao, G. Zhou, L. Gu, L. Luo, R. Stoleru, J A. Stankovic, and T. Abdelzaher. Achieving Long-Term Surveillance in VigilNet. In Proc. of the 25^th IEEE Conf. on Computer Communications (InfoCom'06), April 2006

• L. Gu, D. Jia, P. Vicaire, T. Yan, L. Luo, A. Tirumala, Q. Cao, T. He, J. Stankovic, T. Abdelzaher, B. Krogh, Lightweight Detection and Classification for Wireless Sensor Networks in Realistic Environments, In Proc. of the 3^rd ACM Conf. on Embedded Networked Sensor Systems (SenSys'05). Nov., 2005 (PDF)

• (Best Student Paper Award) L. Gu and J. Stankovic. Radio-Triggered Wake-Up Capability for Sensor Networks, the 11th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'04), May, 2004 (PDF available at the IEEE site, Journal version can be found on Springer site)

• L. Gu and J. A. Stankovic. t-kernel: A Naturalizing OS Kernel for Low-Power Cost-Effective Computers (Extended Abstract, non-regular), the 20th ACM Symposium on Operating Systems Principles (SOSP'05), Oct., 2005 (PDF)

• T. He, L. Luo, T. Yan, L. Gu, Q. Cao, G. Zhou, R. Stoleru, P. Vicaire, Q. Cao, J. A. Stankovic, S. H. Son, and T. F. Abdelzaher. An Overview of the VigilNet Architecture. In Proc. of 11th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, August 2005. Note:(invited paper)

• T. He, Q. Cao, L. Luo, T. Yan, L. Gu, J. A. Stankovic, and T. F. Abdelzaher, Electronic tripwires for power-efficient surveillance and target classification (Demo Abstract), In Second ACM Conference on Embedded Networked Sensor Systems (SenSys'04), Nov. 2004

• T. He, S. Krishnamurthy, J. A. Stankovic, T. F. Abdelzaher, L. Luo, R. Stoleru, T. Yan, L. Gu, J. Hui, and B. Krogh, An Energy-Efficient Surveillance System Using Wireless Sensor Networks, In The Second International Conference on Mobile Systems, Applications, and Services (MobiSys), June 2004

• T. Abdelzaher, B. Blum, D. Evans, J. George, S. George, L. Gu, T. He, C. Huang, P. Nagaraddi, S. Son, P. Sorokin, J. Stankovic, and A. Wood, EnviroTrack: Towards an Environmental Computing Paradigm for Distributed Sensor Networks. IEEE ICDCS , March 2004

• K. Sullivan, L. Gu and Y. Cai, Non-modularity in Aspect-Oriented Languages: Integration as a Crosscutting Concern for AspectJ. Proceedings of the First International Conference on Aspect-Oriented Software Development (AOSD'02), 2002

Journal

• L. Gu and J.A.Stankovic, Radio-Triggered Wake-Up for Wireless Sensor Networks. Real-Time Systems, Springer, Vol. 29, No. 2-3, ISSN: 0922-6443, Mar. 2005, pp 157 - 182 (Abstract and full paper available from Springer)

• T. He, S. Krishnamurthy, L. Luo, T. Yan, L. Gu, R. Stoleru, G. Zhou,, Q. Cao, P. Vicaire, J. A. Stankovic and T. F. Abdelzaher, VigilNet: An Integrated Sensor Network System for Energy-Efficient Surveillance. ACM Transactions on Sensor Networks (TOSN), 2005

• L. Gu, A. Pan, J. Sun and Y. Cui. An Analysis of Internet Secure Session and the Proving of a Simplified Model. Computer Applications, Sept., 1999

Miscellaneous

• T. He, L. Gu, L. Luo, T. Yan, J. A. Stankovic, and S. H. Son, An Overview of Data Aggregation Architecture for Real-Time Tracking with Sensor Networks. In Proc. of the 14^th International Workshop on Parallel and Distributed Real-Time Systems, Apr., 2006

• L. Gu. Virtualizing Operating System for Wireless Sensor Networks. PhD Dissertation, University of Virginia, Aug., 20

• L. Gu and J. A. Stankovic. t-kernel: a Translative OS Kernel for Sensor Networks. UVA CS Tech Report CS-2005-09, 2005

• L. Gu, Information Retrieval and Automatic Feature Set Construction for Text Classification. Master Thesis, Peking University, 2001, Master Thesis, Peking University, 2001.

• D. T. Drewry, L. Gu, A. B. Hocking, K.D. Kang, R. C. Schutt, III, C. M. Taylor, J. L. Pfaltz. Current State of Data Mining, Technical Report CS-2002-15, Department of Computer Science, University of Virginia

• A. Pan, L. Gu, et al, Thirty years of Database System, Microcomputer World, 2000.

Research experience

Wireless Sensor Networks

Working with Prof. Stankovic in the Real-Time and Embedded Computing Lab at UVa, I participated in a number of research projects including the NEST project sponsored by DARPA. I worked on OS design for energy-and-cost-efficient platforms, detection and classification in sensor networks, and passive radio-triggered hardware. The goal is to prove the "superiority" and "feasibility" of the technology of networked low-power, low-cost computers. Superiority asks "can numerous low-power, low-cost computers outperform the current technology with high-power, expensive devices?" Feasibility asks "can we realistically construct reliable systems with this technology at a reasonable development and maintenance cost?"

OS design for general low-power systems
Traditional OS services meet enormous difficulty in low-power embedded systems because of the stringent resource constraints. It is a research challenge to design OS services that are portable among a large spectrum of embedded platforms. I am working on a new OS kernel that supports virtual memory, preemptive scheduling, and reliable OS protection without traditional hardware support.

Lightweight detection and classification in wireless sensor networks
While a variety of sensors have been incorporated into a spectrum of wireless sensor network ( WSN) platforms, traditional signal processing algorithms, however, often prove too complex for energy-and-cost-effective WSN nodes. It is a challenge to to design efficient sensing and classification algorithms that achieve reliable sensing performance on energy-and-cost-effective hardware without special powerful nodes in a continuously changing physical environment. We have developed a lightweight detection and classification architecture and successfully used it in VigilNet.

Power Management for Sensor Networks
Novel hardware, architecture and middleware solutions are needed to make wireless sensor network sustain a long period of time. I am working on implementing radio-triggered hardware which greatly enhance the network nodes' wake-up capability and enable efficient power management services.

Networking

Data-link protocols
TDMA based MAC and data-link layer protocols.