Book Chapters/Magazine Articles

A. Tajer, S. Kar, and H.V. Poor, "Distributed state estimation: a learning-based framework", in Smart Grid Communications and Networking, Ekram Hossain, Zhu Han, and H. Vincent Poor, Eds., Cambridge University Press (forthcoming 2012).

L. Xie, D.H. Choi, S. Kar, and H.V. Poor, "Bad data detection in smart grid: a distributed approach", in Smart Grid Communications and Networking, Ekram Hossain, Zhu Han, and H. Vincent Poor, Eds., Cambridge University Press (forthcoming 2012).

U.A. Khan, S. Kar, and J.M.F. Moura, “Distributed algorithms in sensor networks,” in Handbook on Sensor and Array Processing, Simon Haykin and K. J. Ray Liu, Eds. Wiley-Interscience, New York, NY, April 2009.

Journal Articles

Under Review

S. Kar, J.M.F. Moura, and H.V. Poor, "QD-learning: a collaborative distributed strategy for multi-agent reinforcement learning through consensus + innovations", submitted to IEEE Transactions on Signal Processing, Initial Submission: April 2012. PDF

S. Kar, J.M.F. Moura, and H.V. Poor, "Distributed linear parameter estimation: asymptotically efficient adaptive strategies", submitted to the SIAM J. Control Optim., Initial Submission: Sept. 2011. PDF

Published

S. Kar, J.M.F. Moura, and K. Ramanan, "Distributed parameter estimation in sensor networks: nonlinear observation models and imperfect communication", IEEE Transactions on Information Theory, vol. 58, no. 6, Jun. 2012. Initial Submission: Aug. 2008. PDF

L. Xie, D.H. Choi, S. Kar, and H.V. Poor, "Fully distributed state estimation for wide-area monitoring systems", to appear in the IEEE Transactions on Smart Grid, Initial Submission: May 2011, Accepted: March 2012.

S. Kar and J.M.F. Moura, "Moderate deviations of the random Riccati equation", to appear in the IEEE Transactions on Automatic Control, Initial Submission: Oct. 2009, Revised: June 2010, Accepted: Dec., 2011. PDF

S. Cui, Z. Han, S. Kar, T. Kim, H.V. Poor, and A. Tajer, “Coordinated data injection attack and detection in smart grid”, to appear in the IEEE Signal Processing Magazine - Signal Processing Technique for Smart Grid, July 2012.

S. Kar, B. Sinopoli, and J.M.F. Moura, “Kalman filtering with intermittent observations: weak convergence to a stationary distribution”, IEEE Transactions on Automatic Control, vol. PP, no. 99, July, 2011. DOI: 10.1109/TAC.2011.2161834. PDF

S. Kar and J.M.F. Moura, “Gossip and distributed Kalman filtering: weak consensus under weak detectability”, IEEE Transactions on Signal Processing, vol. 59, no. 4, pp. 1766 – 1784, April 2011. PDF

S. Kar and J.M.F. Moura, “Convergence rate analysis of distributed gossip (linear parameter) estimation: Fundamental limits and tradeoffs”, IEEE Journal of Selected Topics in Signal Processing – Signal Processing in Gossiping Algorithms Design and Applications, vol. 5, no. 5, pp. 674 - 690, March, 2011. PDF

A. Dimakis, S. Kar, J.M.F. Moura, M.G. Rabbat and A. Scaglione, " Gossip algorithms for distributed signal processing”, Proceedings of the IEEE, vol. 98, no. 11, pp. 1847 – 1864, Nov. 2010. PDF

U.A. Khan, S. Kar, and J.M.F. Moura, “Higher dimensional consensus: learning in large-scale networks,” IEEE Transactions on Signal Processing, vol. 58, no. 5, pp. 2836 - 2849, Feb. 2010. PDF

U.A. Khan, S. Kar, and J.M.F. Moura, “DILAND: An algorithm for distributed sensor localization with noisy distance measurements,” IEEE Transactions on Signal Processing, vol. 58, no. 3, pp., March, 2010. PDF

U.A. Khan, S. Kar, and J.M.F. Moura, “Distributed sensor localization in random environments using minimal number of anchor nodes,” IEEE Transactions on Signal Processing, vol. 57, no. 5, pp. 2000-2016, May 2009.PDF

S. Kar and J.M.F. Moura, “Distributed consensus algorithms in sensor networks: quantized data and random link failures”, IEEE Transactions on Signal Processing, vol. 58, no. 3, pp. 1383 - 1400, Nov. 2009. PDF

S. Kar and J.M.F. Moura, “Distributed consensus algorithms in sensor networks with imperfect communication: link failures and channel noise”, IEEE Transactions on Signal Processing, vol.57, no. 5, pp. 355-369, Jan. 2009. PDF

S. Kar and J.M.F. Moura, “Sensor networks with random links: topology design for distributed consensus”, IEEE Transactions on Signal Processing, Vol.56, No.7, pp. 3315-3326, July 2008. PDF

S. Kar, S.A. Aldosari and J.M.F. Moura, “Topology for distributed inference on graphs”, IEEE Transactions on Signal Processing, vol. 56, no. 6, pp. 2609–2613, Jun. 2008. PDF

Conference Papers

E.C. Kara, M. Berges, B.H. Krogh, and S. Kar, "Using smart devices for system-level management and control in the smart grid: a reinforcement learning framework", submitted to the 3rd IEEE International Conference on Smart Grid Communications.

C. Wu and S. Kar, "LMP-based real time pricing for optimal capacity planning with maximal wind power integration", submitted to the 3rd IEEE International Conference on Smart Grid Communications.

S. Pequito, Q. Liu, S. Kar, and M.D. Ilic, "PMU placement to ensure observable frequency and voltage dynamics: a structured system approach", in Proc. of the 8th CMU Electricity Conference, March 12-14, 2012, Carnegie Mellon University, Pittsburgh, PA.

J. Weimer, S. Kar, and K.H. Johansson, "Distributed Detection and Isolation of Topology Attacks in Power Networks", in Proc. of the 1st international conference on High Confidence Networked Systems, pp. 65 - 72, April 17-18, 2012, Beijing, China.

U.A. Khan and S. Kar, "A decentralized algorithm for the preferred assignment problem in multi-agent systems", submitted to the 51st IEEE Conference on Decision and Control.

S. Kar and G. Hug, "Distributed robust economic dispatch in power systems: a consensus + innovations approach", in Proc. of the IEEE Power and Energy Society General Meeting, July 22-26, 2012, San Diego, CA.

Q. Zhao, S. Kar, L. Huie, and S. Cui, "Distributed estimation in sensor networks with imperfect model information: an adaptive learning-based approach", in Proc. of the 37th IEEE International Conference on Acoustics, Speech and Signal Processing, March 25-30, 2012, Kyoto, Japan.

A. Tajer, S. Kar, H.V. Poor, and S. Cui, “Distributed joint cyber attack detection and state recovery in smart grids”, in Proc. of the 2nd IEEE International Conference on Smart Grid Communications, Oct. 17-20, 2011, Brussels, Belgium.

L. Sankar, S. Kar, R. Tandon, and H.V. Poor, “Competitive privacy in the smart grid: an information theoretic approach", in Proc. of the 2nd IEEE International Conference on Smart Grid Communications, Oct. 17-20, 2011, Brussels, Belgium.

Q. Zhao, S. Kar, L. Huie, H.V. Poor, and S. Cui, “Robust distributed least squares estimation in sensor networks with node failures”, in Proc. of the IEEE Globecom, Dec. 5-9, 2011, Houston, TX, USA.

S. Kar, H.V. Poor, and S. Cui, “Bandit problems in networks: asymptotically efficient distributed allocation rules”, in Proc. of the 50th IEEE Conference on Decision and Control and European Control Conference, Dec. 12-15, 2011, Orlando, Florida, USA.

S. Kar, R. Tandon, H.V. Poor, and S. Cui, “Distributed detection in noisy sensor networks”, in Proc. of the IEEE International Symposium on Information Theory, July 31 – Aug. 5, 2011, Saint Petersburg, Russia.

L. Xie, D.H. Choi, and S. Kar, “Cooperative distributed state estimation: local observability relaxed”, in Proc. of the IEEE Power and Energy Society General Meeting, July 24 – July 28, 2011, Detroit, MI.

S. Kar and J.M.F. Moura, “Global emergent behavior in clouds of agents”, in Proc. of the 36th IEEE International Conference on Acoustics, Speech and Signal Processing, May 22 – 27, 2011, Prague, Czech Republic.

S. Kar, S. Cui, H.V. Poor, and J.M.F. Moura, “Convergence results in distributed Kalman filtering”, in Proc. of the IEEE International Conference on Acoustics, Speech and Signal Processing, May 22 – 27, 2011, Prague, Czech Republic.

S. Kar, J.M.F. Moura, and K. Ramanan, “Sample path large deviations for the randomly sampled continuous-discrete Kalman filter”, in Proc. of the 49th IEEE Conference on Decision and Control, pp. 7375 – 7382, Dec. 2010, Atlanta, GA.

U.A. Khan, S. Kar, A. Jadbabaie, and J.M.F. Moura, “On connectivity, observability, and stability in distributed estimation”, in Proc. of the 49th IEEE Conference on Decision and Control, pp. 6639 – 6644, Dec. 2010, Atlanta, GA.

S. Kar, B. Sinopoli and J.M.F. Moura, “A random dynamical systems approach to filtering in large-scale networks”, in Proc. of the American Control Conference, Baltimore, Maryland, June 30-July 2, 2010.

U.A. Khan, S. Kar and J.M.F. Moura, “Designing the parameters of high dimensional consensus: multi-objective optimization and pareto-optimality”, in Proc. of the 35th IEEE International Conference on Acoustics, Speech and Signal Processing, Dallas, Texas, March 14-19, 2010.

U.A. Khan, S. Kar, and J.M.F. Moura, “Distributed sensor localization using barycentric coordinates,” in Proc. of the 3rd International Workshop on Computational Advances in Multi- Sensor Adaptive Processing, Aruba, Dutch Antilles, Dec. 2009.

U.A. Khan, S. Kar and J.M.F. Moura, “Distributed average consensus: beyond the realm of linearity,” in Proc. of the 43rd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 7-10, 2009.

U.A. Khan, S. Kar and J.M.F. Moura, “Asymptotic noise analysis of high dimensional consensus,” in Proc. of the 43rd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 7-10, 2009.

U.A. Khan, S. Kar, and J.M.F. Moura, “Distributed localization in networks of mobile agents,” in Proc. of the 47th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL, Sep. 30-Oct. 2, 2009.

S. Kar and K. Ramanan, “Large deviations for jump Markov processes: revisited”, in Proc. of the 15th INFORMS Applied Probability Society Conference, Cornell University, Ithaca, NY, USA, July 12-15, 2009.

U.A. Khan, S. Kar and J.M.F. Moura, “Higher dimensional consensus algorithms in sensor networks,” in Proc. of the 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Taipei, Taiwan, pp. 2857-2860, Apr. 19-24, 2009.

S. Kar and J.M.F. Moura, "A mixed time-scale algorithm for distributed parameter estimation : nonlinear observation models and imperfect communication," in Proc. of the 34th IEEE International Conference on Acoustics, Speech, and Signal Processing, Taipei, Taiwan, pp. 3669-3672, Apr. 19-24, 2009.

U.A. Khan, S. Kar and J.M.F. Moura, “A liner iterative algorithm for distributed sensor localization,” in Proc. of the 42nd IEEE Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, pp. 1160-1164, Oct. 26-29, 2008.

S. Kar and J.M.F. Moura, “Distributed linear parameter estimation in sensor networks: convergence properties”, in Proc. of the 42nd IEEE Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, pp. 1347-1351 , Oct. 26-29, 2008.

U.A. Khan, S. Kar, B. Sinopoli and J.M.F. Moura, “Distributed sensor localization in Euclidean spaces: dynamic environments,” in Proc. of the 46th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL, pp. 361-366, Sep. 24-26, 2008.

S. Kar, J.M.F. Moura and K. Ramanan, “Large deviations for many server networks with long range dependent and batch arrivals”, in Proc. of the 46th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL, pp. 669-674, Sep. 24-26 2008.

S. Kar and J.M.F. Moura, “Distributed average consensus in sensor Networks with quantized inter-Sensor communication,” in Proc. of the 33rd IEEE International Conference on Acoustics, Speech, and Signal Processing, Las Vegas, Nevada, USA, pp. 2281-2284, March 31-April 4, 2008.

S. Kar and J.M.F. Moura, “Distributed consensus algorithms in sensor networks with communication channel noise and random link failures,” in Proc. of the 41st Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, pp. 676-680, Nov. 4-7, 2007.

S. Kar and J.M.F. Moura, “Consensus based detection in sensor networks: topology optimization under practical constraints,” in Proc. of the 1st International Workshop on Information Theory in Sensor Networks, Santa Fe, NM , June 2007.

S. Kar and J.M.F. Moura, “Distributed Average Consensus in Sensor Networks with Random Link Failures,” in Proc. of the 32nd International Conference on Acoustics, Speech, and Signal Processing, Honolulu, Hawaii, pp. 1013-1016, April 15-20, 2007.

S. Kar and J.M.F. Moura, “Ramanujan Topologies for Decision Making in Sensor Networks,” in Proc. of the 44th Annual Allerton Conference on Communication, Control and Computing, Monticello, IL , Sept. 27-29, 2006.

S. Kar and J.M.F. Moura, “Topology for global average consensus”, in Proc. of the 40th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, pp. 276-280, Oct. 27-Nov. 1, 2006.