Ao Tang

A. Kevin Tang

337 Frank H. T. Rhodes Hall
School of ECE, Cornell University, Ithaca, NY 14853
Phone: 607-255-4803, FAX: 607-255-9072
email: atang at ece dot cornell dot edu

Administrative Assistant: T. Daniel Richter, 314 Rhodes Hall, tdr27 at cornell dot edu, 607-255-4643

Since Fall 2007, I have been teaching in the School of ECE at Cornell as an assistant professor. (Research Group)

2012-2013 Teaching Schedule

ECE 5800 Control and Optimization of Information Networks (2013 Spring)
ECE 4800 Optimal System Analysis and Design (2012 Fall)

Selected Research Papers:

Information Networks:

A. Wierman, L. Andrew, and A. Tang. Power-Aware Speed Scaling in Processor Sharing Systems: Optimality and Robustness, Performance Evaluation,69(12):601-622, December 2012.
F. Paganini, A. Tang, A. Ferragut and L. Andrew. Network Stability under Alpha Fair Bandwidth Allocation with General File Size Distribution, IEEE Transactions on Automatic Control, 57(3):579-591, March 2012.
M. Wang, C. Tan, W. Xu and A. Tang. Cost of Not Splitting in Routing: Characterization and Estimation, IEEE/ACM Transactions on Networking,19(6):1849-1859, December 2011.
A. Anandkumar, N. Michael, A. Tang, and A. Swami. Distributed Algorithms for Learning and Cognitive Medium Access with Logarithmic Regret, IEEE Journal on Selected Areas in Communications,29(4):731-745, April 2011.
C. Lim and A. Tang, Dynamic Speed Scaling and Load Balancing of Interconnected Queues, Proceedings of ITA Workshop 2011
A. Tang, L. Andrew, K. Jacobsson, K. Johansson, H. Hjalmarsson and S. Low. Queue Dynamics with Window Flow Control, IEEE/ACM Transactions on Networking, 18(5): 1422-1435, October 2010.
A. Tang, D. Wei, S. Low and M. Chiang. Equilibrium of Heterogeneous Congestion Control: Optimality and Stability, IEEE/ACM Transanctions on Networking, 18(3):844-857, June 2010.
Z. Liu, A. Tang, C. Xia and L. Zhang, A Decentralized Control Mechanism for Stream Processing Networks, Annuals of Operations Research, 170(1): 161-182, Sep, 2009
L. Andrew, A. Wierman and A. Tang. Optimal Speed Scaling under Arbitrary Power Functions, Sigmetrics Performance Evaluation Review, 37(2): 39-41, September 2009.
K. Jacobsson, L. Andrew, A. Tang, S. Low and H. Hjalmarsson. An Improved Link Model for Window Flow Control and Its Application to FAST TCP, IEEE Transactions on Automatic Control: 54(3):551-564, March 2009.
A. Wierman, L. Andrew and A. Tang. Power-Aware Speed Scaling in Processor Sharing Systems, Proceedings of IEEE Infocom 2009.
G. Ezovski, A. Tang and L. Andrew. Minimizing Average Finish Time in P2P Networks, Proceedings of IEEE Infocom 2009.
A. Tang, L. Andrew, M. Chiang and S. Low. Transport layer, in Wiley Encyclopedia of Computer Science and Engineering, John Wiley & Sons Inc., December 2008.
A. Tang and L. Andrew. Game Theory of Heterogeneous Flow Control, Proceedings of CISS, 2008.
J. Lee, A. Tang, J. Huang, M. Chiang and A. Calderbank. Reverse-Engineering MAC: A Non-Cooperative Game Model, IEEE Journal on Selected Areas in Communications, 25(6):1135-1147, August 2007.
A. Tang, J. Wang, S. Low and M. Chiang. Equilibrium of Heterogeneous Congestion Control: Existence and Uniqueness, IEEE/ACM Transanctions on Networking, 15(4):824-837, August 2007.
M. Chiang, D. Shah and A. Tang. Stochastic Stability Under Fair Bandwidth Allocation: General File Size Distribution. Proceedings of Annual Allerton Conference, 2006
A. Tang, J. Wang and S. Low. Counter Intuitive Throughput Behaviors of Networks under End-to-end Control, IEEE/ACM Transactions on Networking, 14(2):355-368, April 2006.
A. Tang, J. Wang, S. Hedge and S. Low. Equilibrium and Fairness of Networks Shared by TCP Reno and Vegas/FAST, Telecommunication Systems Journal, 30(4):417-439, December 2005.
A. Tang, J. Wang and S. Low. Understanding CHOKe: Throughput and Spatial Characteristics, IEEE/ACM Transaction on Networking, 12(4): 694-707, August 2004.

Sparse Recovery and Its Applications to Network Tomography:

M. Wang, W. Xu, E. Mallada and A. Tang. Sparse Recovery with Graph Constraints: Fundamental Limits and Measurement Construction. Proceedings of IEEE Infocom 2012.
W. Xu, M.Wang and A. Tang. On State Estimation with Bad Data Detection. Proceedings of IEEE CDC 2011.(Journal version draft: Sparse Recovery from Nonlinear Measurements with Applications in Bad Data Detection for Power Networks)
M. Wang, W. Xu and A. Tang. On the Performance of Sparse Recovery via Lp-minimization (0<=p<=1), IEEE Transactions on Information Theory, 57(11):7255-7278, November 2011.
W. Xu, E. Mallada and A. Tang. Compressive Sensing over Graphs. Proceedings of IEEE Infocom 2011.
M. Wang, W. Xu and A. Tang. A Unique ``Nonnegative'' Solution to an Underdetermined System: from Vectors to Matrices, IEEE Transactions on Signal Processing, 59(3):1007-1016, March 2011.

Distributed Synchronization over Networks:

E. Mallada and A. Tang. Distributed Clock Synchronization: Joint Frequency and Phase Consensus, Proceedings of IEEE CDC 2011.
E. Mallada and A. Tang. Improving Damping of Power Networks: Power Scheduling and Impedance Adaptation, Proceedings of IEEE CDC 2011.
E. Mallada and A. Tang. Weakly Pulse-Coupled Oscillators: Heterogeneous Delays Lead to Homogeneous Phase, Proceedings of IEEE CDC 2010.
E. Mallada and A. Tang. Synchronization of Phase-coupled Oscillators with Arbitrary Topology, Proceedings of ACC 2010.

Other Topics:

W. Xu and A. Tang, A Generalized Coupon Collector Problem, Journal of Applied Probability, 48(4):1081-1094, December 2011.
N. Michael, M. Nikolov, A. Tang G. Suh and C. Batten, Analysis of Application-Aware On-Chip Routing under Traffic Uncertainty, Proceedings of ACM NOCS, 2011.
K. Jacobsson, L. Andrew and A. Tang, Stability and Robustness Conditions Using Frequency Dependent Half Planes, Proceedings of IEEE CDC, 2009.
A. Tang, A. Simsek, A. Ozdaglar and D. Acemoglu, On the Stability of P-Matrices, Linear Algebra and Its Applications, 426(1): 22-32, October 2007.
A. Tang and K. Gong, Study on Power Azimuth Spectrum of Wireless Channel in Microcell Environments, Proceedings of IEEE PIMRC, 2003.