~ ~ ~ Our group has openings for research assistant staff. The work responsibility is to develop software and conduct research in operating systems. ~ ~ ~

Lin Gu is an assistant professor at the Department of Computer Science and Engineering. He received B.S. from Fudan University (1996), M.S. from Peking University (2001), and Ph.D. from the University of Virginia (2006). His current research interests include large-scale distributed systems and cloud computing, operating systems, wireless sensor networks, and energy-efficient computing.

Research projects

• System software for cloud computing
  The emerging cloud computing paradigm introduces new challenges to system software design. We design, implement and evaluat scalable file systems, flexible parallel processing support, and core OS services that run efficiently on a plurality of commodity compute nodes.

  Layer Zero (L0): A general-purpose substrate for cloud computing.

  DVM: A distributed virtual machine that comprises a large number of physical hosts.

  BIFS: A bit-interleaving file system that retains a certain level of compressibility while providing a strong privacy protection guarantee.

  CCMR: A cloud computing testbed used by multimple research groups for scientific computing and interdisciplinary research.

• Virtk (a.k.a. t-kernel): OS design for general low-power systems
  A new OS kernel that supports virtual memory, preemptive scheduling, and reliable OS protection without traditional hardware support.

• Wireless sensor networks

  Detection and classification sensornet: Lightweight detection and classification in wireless sensor networks
  

  Energy-efficient RFID inventory algorithms: Smart transmission power control algorithms can significantly reduce the energy consumption of RFID inventory operations without noticeably affecting the throughput of the system.

• Energy efficiency and power management: Novel hardware, architecture and middleware solutions are needed to make wireless sensor network sustain a long period of time.

  Radio-triggered wakeup: A wireless-wakeup mechanism that can significantly increase the lifetime of a low-power wireless system.

• Network protocols: TDMA based MAC and data-link layer protocols, low-latency routing protocols, and datacenter networking.

Courses

Selected publications (Complete publication list.)

Journals

• Kuai Xu, Feng Wang and Lin Gu. Behavior Analysis of Internet Traffic Via Bipartite Graphs and One-Mode Projections. IEEE/ACM Transactions on Networking (accepted).

• Zhiqiang Ma, Zhonghua Sheng and Lin Gu. DVM: A Big Virtual Machine for Cloud Computing. IEEE Transactions on Computers (accepted).

• Rui Chu, Lin Gu, Yunhao Liu, Mo Li and Xicheng Lu. SenSmart: adaptive stack management for multitasking sensor networks. IEEE Transactions on Computers, Vol. 62, Issue 1, Jan. 2013.

• Xunteng XU, Lin Gu, Jianping Wang, Guoliang Xing, and Shing-Chi Cheung. Read More with Less: An Adaptive Approach to Energy-efficient RFID Systems. IEEE Journal on Selected Areas in Communications (JSAC), 29(8), Sept. 2011.

• P. Vicaire, T. He, T. Yan, Q. Cao, G. Zhou, L. Gu, L. Luo, R. Stoleru, J. A. Stankovic, and T. Abdelzaher. Achieving Long-Term Surveillance in VigilNet. ACM Trans. on Sensor Networks 5(1), Feb. 2009

• 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) (PDF)

• T. He, S. Krishnamurthy, L. Luo, T. Yan, L. Gu, R. Stoleru, G. Zhou, Q. Cao, P. Vicaire, J. A. Stankovic, T. F. Abdelzaher, J. Hui and B. Krogh. VigilNet: An Integrated Sensor Network System for Energy-Efficient Surveillance . ACM Trans. on Sensor Networks (TOSN), 2(1):1-38, Feb., 2006

Conference Papers

• Zhiqiang Ma, Zhonghua Sheng, Lin Gu, Liufei Wen and Gong Zhang. DVM: Towards a Datacenter-Scale Virtual Machine. In Proc. of ACM VEE'12, London, UK, Mar. 3-4, 2012.

• Zhonghua Sheng, Zhqiang Ma, Lin Gu and Ang Li. A privacy-protecting file system on public cloud storage. In Proc. of CSC'11.

• Qingquan Zhang, Yu Gu, Lin Gu, Qing Cao, and Tian He. Collaborative Scheduling in Highly Dynamic Environments Using Error Inference. In Proc. of MSN'11, Beijing, China, 2011. (Best Paper Award)

• Hanjiang Luo, Kaishun Wu, Zhongwen Guo, Lin Gu, Zhong Yang and Lionel M. Ni. SID: Ship Intrusion Detection with Wireless Sensor Networks In Proc. of ICDCS'11.

• Kuai Xu, Feng Wang and Lin Gu. Network-Aware Behavior Clustering of Internet End Hosts. In Proc. of IEEE InfoCom'11.

• Z. Ma and L. Gu. The Limitation of MapReduce: a Probing Case and a Lightweight Solution. In Proc. of the 1^st Intl. Conf. on Cloud Computing, GRIDs, and Virtualization (CLOUD COMPUTING 2010). Nov. 21-26, 2010, Lisbon, Portugal.

• Ang Li, Lin Gu, and Kuai Xu. Fast Anomaly Detection for Large Data Centers. In Proc. of the IEEE Globe Communications Conf., 2010 (GlobeCom'10). Miami, FL, USA, Dec. 6-10, 2010.

• R. Chu, L. Gu, Y. Liu, M. Li, C. Lu. Versatile stack management for multitasking sensor networks. In Proc. of the 30^th Intl. Conf. on Distributed Computing Systems (ICDCS'10). Genoa, Italy, June 21-25, 2010

• W. Dong, Y. Liu, X. Wu, L. Gu, and C. Chen. Elon: Enabling Efficient and Long-Term Reprogramming in Wireless Sensor Networks In Proc. of ACM SIGMETRICS 2010, New York, NY, USA, June 14-18, 2010.

• X. Xu, L. Gu, J. Wang, and G. Xing. Negotiate Power and Performance in the Reality of RFID Systems. In Proc. of the 8^th IEEE Intl. Conf. on Pervasive Computing and Communications (PerCom'10). Mar., 2010, Mannheim, Germany. (PDF)

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

• 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, 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)

• L. Gu and J. Stankovic. Radio-Triggered Wake-Up Capability for Sensor Networks. The 11^th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'04), May, 2004 (Best Student Paper Award)

• 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

Software Releases