Sanjay Lall

All Publications

• Logical Synchrony and the Bittide Mechanism IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS Lall, S., Cascaval, C., Izzard, M., Spalink, T. 2024; 35 (11): 1936-1948

  View details for DOI 10.1109/TPDS.2024.3444739

  View details for Web of Science ID 001311204500001

• Safe Explicit MPC by Training Neural Networks Through Constrained Optimization Kanavalau, A., Lall, S., IEEE IEEE. 2024: 183-188

  View details for DOI 10.1109/CONTROL60310.2024.10531837

  View details for Web of Science ID 001237865500006

• Logical Synchrony Networks: A Formal Model for Deterministic Distribution IEEE ACCESS Kenwright, L., Roop, P., Allen, N., Lall, S., Cascaval, C., Spalink, T., Izzard, M. 2024; 12: 80872-80883

  View details for DOI 10.1109/ACCESS.2024.3411017

  View details for Web of Science ID 001248276900001

• Resistance Distance and Control Performance for bittide Synchronization Lall, S., Cascaval, C., Izzard, M., Spalink, T., IEEE IEEE. 2022: 1850-1857

  View details for Web of Science ID 000857432300258

• Modeling and Control of bittide Synchronization Lall, S., Cascaval, C., Izzard, M., Spalink, T., IEEE IEEE. 2022: 5185-5192

  View details for Web of Science ID 000865458704118

• Probabilistic Modeling Using Tree Linear Cascades Landolfi, N. C., Lall, S., IEEE IEEE. 2022: 2617-2622

  View details for Web of Science ID 000865458702071

• Thermal runaway avoidance using Hamilton-Jacobi reachability and model predictive control COMPUTERS & CHEMICAL ENGINEERING Kanavalau, A., Lall, S. 2022; 157

  View details for DOI 10.1016/j.compchemeng.2021.107605

  View details for Web of Science ID 000766390500013

• Cloud Telemetry Modeling via Residual Gauss-Markov Random Fields Landolfi, N. C., O'Neill, D. C., Lall, S., IEEE IEEE. 2021

  View details for DOI 10.1109/ICIN51074.2021.9385544

  View details for Web of Science ID 000668855300008

• Shape-Based Approach to Household Electric Load Curve Clustering and Prediction IEEE TRANSACTIONS ON SMART GRID Teeraratkul, T., O'Neill, D., Lall, S. 2018; 9 (5): 5196–5206

  View details for DOI 10.1109/TSG.2017.2683461

  View details for Web of Science ID 000443200700115

• Sufficient Statistics for Optimal Decentralized Control in System of Systems Nigam, N., Lall, S., Hovareshti, P., Ezra, K., Mockus, L., Tolani, D., Sloan, S., IEEE IEEE. 2018: 92–95

  View details for DOI 10.1109/ai4i.2018.00030

  View details for Web of Science ID 000468732400022

• Convexity of Decentralized Controller Synthesis IEEE TRANSACTIONS ON AUTOMATIC CONTROL Lessard, L., Lall, S. 2016; 61 (10): 3122-3127

  View details for DOI 10.1109/TAC.2015.2504179

  View details for Web of Science ID 000385406100035

• Stability Analysis of Distributed Power Generation With Droop Inverters IEEE TRANSACTIONS ON POWER SYSTEMS Chang, C., Gorinevsky, D., Lall, S. 2015; 30 (6): 3295-3303

  View details for DOI 10.1109/TPWRS.2015.2388673

  View details for Web of Science ID 000359371600047

• Optimal Control of Two-Player Systems With Output Feedback IEEE TRANSACTIONS ON AUTOMATIC CONTROL Lessard, L., Lall, S. 2015; 60 (8): 2129-2144

  View details for DOI 10.1109/TAC.2015.2400658

  View details for Web of Science ID 000358642500009

• Explicit Solutions to Separable Problems in Optimal Cooperative Control IEEE TRANSACTIONS ON AUTOMATIC CONTROL Kim, J., Lall, S. 2015; 60 (5): 1304-1319

  View details for DOI 10.1109/TAC.2014.2378931

  View details for Web of Science ID 000353508100010

• Sufficient Statistics for Dynamic Teams Wu, J., Lall, S., IEEE IEEE. 2015: 5465–70

  View details for Web of Science ID 000370259205094

• Weak Sufficient Statistics for Team Decision Problems Lemon, A., Lall, S., IEEE IEEE. 2015: 5290-5295

  View details for Web of Science ID 000381554505078

• An Algebraic Approach to the Control of Decentralized Systems IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS Lessard, L., Lall, S. 2014; 1 (4): 308-317

  View details for DOI 10.1109/TCNS.2014.2357501

  View details for Web of Science ID 000218596800002

• Optimal Controller Synthesis for Decentralized Systems Over Graphs via Spectral Factorization IEEE TRANSACTIONS ON AUTOMATIC CONTROL Swigart, J., Lall, S. 2014; 59 (9): 2311-2323

  View details for DOI 10.1109/TAC.2014.2321309

  View details for Web of Science ID 000342924100001

• Dynamical and Voltage Profile Stability of Inverter-Connected Distributed Power Generation IEEE TRANSACTIONS ON SMART GRID Chang, C., Gorinevsky, D., Lall, S. 2014; 5 (4): 2093-2105

  View details for DOI 10.1109/TSG.2014.2321749

  View details for Web of Science ID 000338191200057

• A Theory of Sufficient Statistics for Teams Wu, J., Lall, S., IEEE IEEE. 2014: 2628–35

  View details for Web of Science ID 000370073802124

• Sufficient Statistics for Multi-Agent Decision Problems Wu, J., Lall, S., IEEE IEEE. 2014: 467–74

  View details for Web of Science ID 000380426900065

• Polynomial Level-Set Method for Polynomial System Reachable Set Estimation IEEE TRANSACTIONS ON AUTOMATIC CONTROL Wang, T., Lall, S., West, M. 2013; 58 (10): 2508-2521

  View details for DOI 10.1109/TAC.2013.2263916

  View details for Web of Science ID 000324931000006

• Polynomial level-set method for attractor estimation JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS Wang, T., Lall, S., West, M. 2012; 349 (9): 2783-2798

  View details for DOI 10.1016/j.jfranklin.2012.08.014

  View details for Web of Science ID 000311063900005

• Networked Markov Decision Processes With Delays IEEE TRANSACTIONS ON AUTOMATIC CONTROL Adlakha, S., Lall, S., Goldsmith, A. 2012; 57 (4): 1013-1018

  View details for DOI 10.1109/TAC.2011.2168111

  View details for Web of Science ID 000302499500017

• Decentralized Control via Grbner Bases and Variable Elimination IEEE TRANSACTIONS ON AUTOMATIC CONTROL Shin, H. S., Lall, S. 2012; 57 (4): 1030-1035

  View details for DOI 10.1109/TAC.2011.2170110

  View details for Web of Science ID 000302499500020

• Separable Optimal Cooperative Control Problems American Control Conference (ACC) Kim, J., Lall, S. IEEE COMPUTER SOC. 2012: 5868–5873

  View details for Web of Science ID 000310776206029

• Optimal Cooperative Control of Dynamically Decoupled Systems 51st IEEE Annual Conference on Decision and Control (CDC) Kim, J., Lall, S., Ryoo, C. IEEE. 2012: 4852–4857

  View details for Web of Science ID 000327200405031

• Frequency Stability for Distributed Generation Connected through Grid-Tie Inverter IEEE International Conference on Power System Technology (POWERCON) Glover, E., Chang, C., Gorinevsky, D., Lall, S. IEEE. 2012

  View details for Web of Science ID 000327100400110

• Optimal Cooperative Control of Dynamically Decoupled Systems. Kim, J., H., Lall, S., Ryoo, C., K. 2012
• Frequency Stability for Distributed Generation Connected through Grid-Tie Inverter. Glover, E., Chang, C., C., Gorinevsky, D., Lall, S. 2012
• Optimal Controller Synthesis for the Decentralized Two-Player Problem with Output Feedback American Control Conference (ACC) Lessard, L., Lall, S. IEEE COMPUTER SOC. 2012: 6314–6321

  View details for Web of Science ID 000310776206101

• Polynomial Method for PLL Controller Optimization SENSORS Wang, T., Lall, S., Chiou, T. 2011; 11 (7): 6575-6592

  Abstract

  The Phase-Locked Loop (PLL) is a key component of modern electronic communication and control systems. PLL is designed to extract signals from transmission channels. It plays an important role in systems where it is required to estimate the phase of a received signal, such as carrier tracking from global positioning system satellites. In order to robustly provide centimeter-level accuracy, it is crucial for the PLL to estimate the instantaneous phase of an incoming signal which is usually buried in random noise or some type of interference. This paper presents an approach that utilizes the recent development in the semi-definite programming and sum-of-squares field. A Lyapunov function will be searched as the certificate of the pull-in range of the PLL system. Moreover, a polynomial design procedure is proposed to further refine the controller parameters for system response away from the equilibrium point. Several simulation results as well as an experiment result are provided to show the effectiveness of this approach.

  View details for DOI 10.3390/s110706575

  View details for Web of Science ID 000293069200006

  View details for PubMedID 22163973

  View details for PubMedCentralID PMC3231652

• Synthesis for Optimal Two-Player Decentralized Control over TCP Erasure Channels with State Feedback 50th IEEE Conference of Decision and Control (CDC)/European Control Conference (ECC) Chang, C., Lall, S. IEEE. 2011: 3824–3829

  View details for Web of Science ID 000303506204072

• A State-Space Solution to the Two-Player Decentralized Optimal Control Problem. Lessard, L., Lall, S. 2011
• Decentralized Control. Networked Control Systems. Lecture Notes in Control and Information Sciences Swigart, J., Lall, S. 2011; 406: 179--201
• Optimal Controller Synthesis for a Decentralized Two-Player System with Partial Output Feedback American Control Conference (ACC) Swigart, J., Lall, S. IEEE. 2011: 317–323

  View details for Web of Science ID 000295376000053

• An Explicit Solution for Optimal Two-Player Decentralized Control over TCP Erasure Channels with State Feedback American Control Conference (ACC) Chang, C., Lall, S. IEEE. 2011: 4717–4722

  View details for Web of Science ID 000295376005104

• Decentralized Robust Control via Quadratically Invariant Model Projection American Control Conference (ACC) Kim, J., Lall, S., Merrill, W., Behbahani, A. IEEE. 2011: 527–532

  View details for Web of Science ID 000295376001007

• Quadratic Invariance is Necessary and Sufficient for Convexity American Control Conference (ACC) Lessard, L., Lall, S. IEEE. 2011: 5360–5362

  View details for Web of Science ID 000295376006063

• A Unifying Condition for Separable Two Player Optimal Control Problems 50th IEEE Conference of Decision and Control (CDC)/European Control Conference (ECC) Kim, J., Lall, S. IEEE. 2011: 3818–3823

  View details for Web of Science ID 000303506204071

• Coding Strategies for a Class of Decentralized Control Problems with Limited Communication 50th IEEE Conference of Decision and Control (CDC)/European Control Conference (ECC) Mirghaderi, R., Lall, S., Goldsmith, A. IEEE. 2011: 4809–4816

  View details for Web of Science ID 000303506205069

• Fast Algorithms for Resource Allocation in Wireless Cellular Networks IEEE-ACM TRANSACTIONS ON NETWORKING Madan, R., Boyd, S. P., Lall, S. 2010; 18 (3): 973-984

  View details for DOI 10.1109/TNET.2009.2034850

  View details for Web of Science ID 000278813900023

• Optimal Synthesis and Explicit State-Space Solution for a Decentralized Two-Player Linear-Quadratic Regulator 49th IEEE Conference on Decision and Control (CDC) Swigart, J., Lall, S. IEEE. 2010: 132–137

  View details for Web of Science ID 000295049100023

• Decentralized Control NETWORKED CONTROL SYSTEMS Swigart, J., Lall, S., Bemporad, A., Heemels, M., Johansson, M. 2010; 406: 179-201

  View details for Web of Science ID 000283816800006

• Distributed Engine Control Design Considerations. Merrill, W., Kim, J., H., Lall, S., Majerus, S., Howe, D., Behbahani, A. 2010
• Convexity of Optimal Control over Networks with Delays and Arbitrary Topology. International Journal of Systems, Control and Communications Rotkowitz, M., Cogill, R., Lall, S. 2010; 2 (1-3): 30--54
• An Exact Dynamic Programming Solution for a Decentralized Two-Player Markov Decision Process. Wu, J., Lall, S. 2010
• An Explicit Dynamic Programming Solution for a Decentralized Two-Player Optimal Linear-Quadratic Regulator. Swigart, J., Lall, S. 2010
• An Explicit State-Space Solution for a Decentralized Two-Player Optimal Linear-Quadratic Regulator American Control Conference Swigart, J., Lall, S. IEEE. 2010: 6385–6390

  View details for Web of Science ID 000287187906129

• Optimal Decentralized Control of Linear Systems via Groebner Bases and Variable Elimination American Control Conference Shin, H. S., Lall, S. IEEE. 2010: 5608–5613

  View details for Web of Science ID 000287187906002

• A Constant Factor Approximation Algorithm for Event-Based Sampling Symposium on Systems, Control and Signal Processing held in Honor of Yutaka Yamamoto Cogill, R., Lall, S., Hespanha, J. P. SPRINGER-VERLAG BERLIN. 2010: 51–60

  View details for Web of Science ID 000281198800005

• An Algebraic Framework for Quadratic Invariance 49th IEEE Conference on Decision and Control (CDC) Lessard, L., Lall, S. IEEE. 2010: 2698–2703

  View details for Web of Science ID 000295049103025

• Nonlinear Youla Parametrization and Information Constraints for Decentralized Control American Control Conference Wu, J., Lall, S. IEEE. 2010: 5614–5619

  View details for Web of Science ID 000287187906003

• An Approximate Dynamic Programming Approach to the Dynamic Traveling Repairperson Problem 49th IEEE Conference on Decision and Control (CDC) Shin, H. S., Lall, S. IEEE. 2010: 2286–2291

  View details for Web of Science ID 000295049102102

• A Dynamic Programming Algorithm for Decentralized Markov Decision Processes with a Broadcast Structure 49th IEEE Conference on Decision and Control (CDC) Wu, J., Lall, S. IEEE. 2010: 6143–6148

  View details for Web of Science ID 000295049107001

• Internal Quadratic Invariance and Decentralized Control American Control Conference Lessard, L., Lall, S. IEEE. 2010: 5596–5601

  View details for Web of Science ID 000287187905164

• Hat Guessing Games and the Use of Coding for Decentralized Control 49th IEEE Conference on Decision and Control (CDC) Mirghaderi, R., Adlakha, S., Lall, S., Goldsmith, A. IEEE. 2010: 979–985

  View details for Web of Science ID 000295049101038

• A Computational Approach for Decentralized Control of Turbine Engines 49th IEEE Conference on Decision and Control (CDC) Kim, J., Lall, S., Merrill, W., Behbahani, A. IEEE. 2010: 346–351

  View details for Web of Science ID 000295049100057

• Analysis of Polynomial Systems With Time Delays via the Sum of Squares Decomposition IEEE TRANSACTIONS ON AUTOMATIC CONTROL Papachristodoulou, A., Peet, M. M., Lall, S. 2009; 54 (5): 1058-1064

  View details for DOI 10.1109/TAC.2009.2017168

  View details for Web of Science ID 000266174100018

• Reduction of Decentralized Control Problems to Tractable Representations Joint 48th IEEE Conference on Decision and Control (CDC) / 28th Chinese Control Conference (CCC) Lessard, L., Lall, S. IEEE. 2009: 1621–1626

  View details for Web of Science ID 000336893602018

• Model reduction, optimal prediction, and the Mori-Zwanzig representation of Markov chains Joint 48th IEEE Conference on Decision and Control (CDC) / 28th Chinese Control Conference (CCC) Beck, C. L., Lall, S., Liang, T., West, M. IEEE. 2009: 3282–3287

  View details for Web of Science ID 000336893603128

• A Graph-Theoretic Approach to Distributed Control over Networks Joint 48th IEEE Conference on Decision and Control (CDC) / 28th Chinese Control Conference (CCC) Swigart, J., Lall, S. IEEE. 2009: 5409–5414

  View details for Web of Science ID 000336893605148

• Reduction of Decentralized Control Problems to Tractable Representations. Lessard, L., Lall, S. 2009
• Model reduction, optimal prediction, and the Mori-Zwanzig representation of Markov chains. Beck, C., L., Lall, S., Liang, T., West, M. 2009
• A Graph-Theoretic Approach to Distributed Control over Networks. Swigart, J., Lall, S. 2009
• Time-delayed Decentralized H-infinity Controller Design for Civil Structures: a Homotopy Method through Linear Matrix Inequalities American Control Conference 2009 Wang, Y., Law, K. H., Lall, S. IEEE. 2009: 4549–4556

  View details for Web of Science ID 000270044902096

• POSITIVE FORMS AND STABILITY OF LINEAR TIME-DELAY SYSTEMS SIAM JOURNAL ON CONTROL AND OPTIMIZATION Peet, M. M., Papachristodoulou, A., Lall, S. 2009; 47 (6): 3237-3258

  View details for DOI 10.1137/070706999

  View details for Web of Science ID 000208042600011

• Decentralized Team Decision Via Coding 47th Annual Allerton Conference on Communication, Control, and Computing Adlakha, S., Mirghaderi, S. R., Lall, S., Goldsmith, A. IEEE. 2009: 151–151

  View details for Web of Science ID 000279627100021

• Spectral Factorization of Non-Classical Information Structures Under Feedback American Control Conference 2009 Swigart, J., Lall, S. IEEE. 2009: 457–462

  View details for Web of Science ID 000270044900075

• Experimental validation of single-iteration multigrid wavefront reconstruction at the Palomar Observatory OPTICS LETTERS Lessard, L., MacMynowski, D., West, M., Bouchez, A., Lall, S. 2008; 33 (18): 2047-2049

  Abstract

  Single-iteration multigrid (SIMG) wavefront reconstruction schemes were implemented and validated on the adaptive optics system at the Hale 5.1 m telescope at the Palomar Observatory. Results indicate that even the simplest such method produces a performance indistinguishable from that of the standard least-squares reconstructor for both bright and dim guide stars. SIMG provides a dramatic reduction in computational cost when compared to vector-matrix multiplication and can be implemented in parallel, making it the obvious choice for reconstruction in future large-scale adaptive optics systems.

  View details for Web of Science ID 000259891400010

  View details for PubMedID 18794926

• Testing static equilibrium for legged robots IEEE TRANSACTIONS ON ROBOTICS Bretl, T., Lall, S. 2008; 24 (4): 794-807

  View details for DOI 10.1109/TRO.2008.2001360

  View details for Web of Science ID 000258617900004

• Structured semidefinite programs for the control of symmetric systems AUTOMATICA Cogill, R., Lall, S., Parrilo, P. A. 2008; 44 (5): 1411-1417

  View details for DOI 10.1016/j.automatica.2007.10.004

  View details for Web of Science ID 000256113400028

• Warm-started wavefront reconstruction for adaptive optics JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Lessard, L., West, M., MacMynowski, D., Lall, S. 2008; 25 (5): 1147-1155

  Abstract

  Future extreme adaptive optics (ExAO) systems have been suggested with up to 10(5) sensors and actuators. We analyze the computational speed of iterative reconstruction algorithms for such large systems. We compare a total of 15 different scalable methods, including multigrid, preconditioned conjugate-gradient, and several new variants of these. Simulations on a 128x128 square sensor/actuator geometry using Taylor frozen-flow dynamics are carried out using both open-loop and closed-loop measurements, and algorithms are compared on a basis of the mean squared error and floating-point multiplications required. We also investigate the use of warm starting, where the most recent estimate is used to initialize the iterative scheme. In open-loop estimation or pseudo-open-loop control, warm starting provides a significant computational speedup; almost every algorithm tested converges in one iteration. In a standard closed-loop implementation, using a single iteration per time step, most algorithms give the minimum error even in cold start, and every algorithm gives the minimum error if warm started. The best algorithm is therefore the one with the smallest computational cost per iteration, not necessarily the one with the best quasi-static performance.

  View details for Web of Science ID 000256246000016

  View details for PubMedID 18451921

• Information State for Markov Decision Processes with Network Delays 47th IEEE Conference on Decision and Control Adlakha, S., Lall, S., Goldsmith, A. IEEE. 2008: 3840–3847

  View details for Web of Science ID 000307311603160

• Dynamic Programming with Non-Classical Information Structures. Mathematical Theory of Networks and Systems Swigart, J., Lall, S. 2008
• POSITIVE FORMS AND STABILITY OF LINEAR TIME-DELAY SYSTEMS SIAM JOURNAL ON CONTROL AND OPTIMIZATION Peet, M. M., Papachristodoulou, A., Lall, S. 2008; 47 (6): 3237-3258

  View details for DOI 10.1137/070706999

  View details for Web of Science ID 000263103300022

• Stochastic Multiscale Approaches to Consensus Problems 47th IEEE Conference on Decision and Control Kim, J., West, M., Lall, S., Scholte, E., Banaszuk, A. IEEE. 2008: 5551–5557

  View details for Web of Science ID 000307311605113

• Nonlinear Phase-Locked Loop Design using Semidefinite Programming 16th Mediterranean Conference on Control and Automation Wang, T., Chiou, T., Lall, S. IEEE. 2008: 1047–1052

  View details for Web of Science ID 000261534400175

• A Bayesian Network Approach to Control of Networked Markov Decision Processes 46th Annual Allerton Conference on Communication, Control and Computing Adlakha, S., Lall, S., Goldsmith, A. IEEE. 2008: 446–451

  View details for Web of Science ID 000268229600066

• Modeling and optimization of transmission schemes in energy-constrained wireless sensor networks IEEE-ACM TRANSACTIONS ON NETWORKING Madan, R., Cui, S., Lall, S., Goldsmith, A. J. 2007; 15 (6): 1359-1372

  View details for DOI 10.1109/TNET.2007.897945

  View details for Web of Science ID 000252125200012

• Cross-layer energy and delay optimization in. small-scale sensor networks IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS Cui, S., Madan, R., Goldsmith, A. J., Lall, S. 2007; 6 (10): 3688-3699

  View details for DOI 10.1109/TWC.2007.060072

  View details for Web of Science ID 000250177700028

• Global stability analysis of a nonlinear model of Internet congestion control with delay IEEE TRANSACTIONS ON AUTOMATIC CONTROL Peet, M., Lall, S. 2007; 52 (3): 553-559

  View details for DOI 10.1109/TAC.2007.892379

  View details for Web of Science ID 000245149400021

• Optimal control of distributed Markov decision processes with network delays 46th IEEE Conference on Decision and Control Adlakha, S., Madan, R., Lall, S., Goldsmith, A. IEEE. 2007: 4804–4810

  View details for Web of Science ID 000255181702184

• A Constant Factor Approximation Algorithm for Event-Based Sampling. Cogill, R., Lall, S., Hespanha, J. 2007
• Affine controller parameterization for decentralized control over Banach spaces IEEE TRANSACTIONS ON AUTOMATIC CONTROL Rotkowitz, M., Lall, S. 2006; 51 (9): 1497-1500

  View details for DOI 10.1109/TAC.2006.880781

  View details for Web of Science ID 000240579000009

• Distributed algorithms for maximum lifetime routing in wireless sensor networks IEEE GLOBECOM 2004 Madan, R., Lall, S. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2006: 2185–93

  View details for DOI 10.1109/TWC.2006.04667

  View details for Web of Science ID 000239552000032

• An energy-optimal algorithm for neighbor discovery in wireless sensor networks 2nd Workshop on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks Madan, R., Lall, S. SPRINGER. 2006: 317–26

  View details for DOI 10.1007/s11036-006-5185-x

  View details for Web of Science ID 000237441400002

• Discrete variational Hamiltonian mechanics JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL Lall, S., West, M. 2006; 39 (19): 5509-5519

  View details for DOI 10.1088/0305-4470/39/19/S11

  View details for Web of Science ID 000238383700012

• A characterization of convex problems in decentralized control IEEE TRANSACTIONS ON AUTOMATIC CONTROL Rotkowitz, M., Lall, S. 2006; 51 (2): 274-286

  View details for DOI 10.1109/TAC.2005.860365

  View details for Web of Science ID 000235535700008

• An approximation algorithm for the discrete team decision problem SIAM JOURNAL ON CONTROL AND OPTIMIZATION Cogill, R., Lall, S. 2006; 45 (4): 1359-1368

  View details for DOI 10.1137/050628374

  View details for Web of Science ID 000242572300010

• Convexification of Optimal Decentralized Control Without a Stabilizing Controller. Rotkowitz, M., Lall, S. 2006
• A Constant Factor Approximation Algorithm for Event-Based Sampling. Cogill, R., Lall, S., Hespanha, J. 2006
• A space-time diffusion scheme for peer-to-peer least-squares estimation 5th International Conference on Informational Processing in Sensor Networks Xiao, L., Boyd, S., Lall, S. ASSOC COMPUTING MACHINERY. 2006: 168–176

  View details for Web of Science ID 000238978000022

• An approximate dynamic programming approach to decentralized control of stochastic systems Workshop on Control of Uncertain Systems Cogill, R., Rotkowitz, M., Van Roy, B., Lall, S. SPRINGER-VERLAG BERLIN. 2006: 243–256

  View details for Web of Science ID 000236901900013

• Backlog analysis of maximal matching switching with speedup 45th IEEE Conference on Decision and Control Cogill, R., Lall, S. IEEE. 2006: 1876–1881

  View details for Web of Science ID 000252251606069

• Suboptimality bounds in stochastic control: A queueing example American Control Conference 2006 Cogill, R., Lall, S. IEEE. 2006: 1642–1647

  View details for Web of Science ID 000241666303019

• Positive forms and stability of linear time-delay systems 45th IEEE Conference on Decision and Control Peet, M., Papachristodoulou, A., Lall, S. IEEE. 2006: 187–193

  View details for Web of Science ID 000252251605148

• A fast and adaptive test of static equilibrium for legged robots IEEE International Conference on Robotics and Automation (ICRA) Bretl, T., Lall, S. IEEE. 2006: 1109–1116

  View details for Web of Science ID 000240886902035

• Degree bounds for polynomial verification of the matrix cube problem 45th IEEE Conference on Decision and Control Chen, B., Lall, S. IEEE. 2006: 4405–4410

  View details for Web of Science ID 000252251605099

• A characterization of convex problems in decentralized control IEEE TRANSACTIONS ON AUTOMATIC CONTROL Rotkowitz, M., Lall, S. 2005; 50 (12): 1984-1996

  View details for DOI 10.1109/TAC.2005.860365

  View details for Web of Science ID 000234062800005

• A simple condition for the convexity of optimal control over networks with delays 44th IEEE Conference on Decision Control/European Control Conference (CCD-ECC) Rotkowitz, M., Cogill, R., Lall, S. IEEE. 2005: 6686–6691

  View details for Web of Science ID 000240653706075

• Cross-Layer Design for Lifetime Maximization in Interference-Limited Wireless Sensor Networks. Madan, R., Cui, S., Lall, S., Goldsmith, A. 2005
• A Distributed Algorithm with Linear Convergence for Maximum Lifetime Routing in Wireless Networks. Madan, R., Luo, Z.-Q., Lall, S. 2005
• Mixed Integer-Linear Programming for Link Scheduling in Interference-Limited Networks. Madan, R., Cui, S., Lall, S., Goldsmith, A., J. 2005
• Polynomial level-set methods for nonlinear dynamical systems analysis. Wang, T., Lall, S., West, M. 2005
• Multi-step motion planning for free-climbing robots 6th International Workshop on Algorithmic Foundations of Robotics Bretl, T., Lall, S., Latombe, J. C., Rock, S. SPRINGER-VERLAG BERLIN. 2005: 59–74

  View details for Web of Science ID 000231865200006

• Joint routing, MAC, and link layer optimization in sensor networks with energy constraints IEEE International Conference on Communications (ICC 2005) Cui, S. G., Madan, R., Goldsmith, A., Lall, S. IEEE. 2005: 725–729

  View details for Web of Science ID 000231726401001

• Tractable fitting with convex polynomials via sum-of-squares 44th IEEE Conference on Decision Control/European Control Conference (CCD-ECC) Magnani, A., Lall, S., Boyd, S. IEEE. 2005: 1672–1677

  View details for Web of Science ID 000240653701110

• A scheme for robust distributed sensor fusion based on average consensus 4th International Symposium on Information Processing in Sensor Networks Xiao, L., Boyd, S., Lall, S. IEEE. 2005: 63–70

  View details for Web of Science ID 000230452800009

• Energy-delay tradeoffs for data collection in TDMA-based sensor networks IEEE International Conference on Communications (ICC 2005) Cui, S. G., Madan, R., Goldsmith, A., Lall, S. IEEE. 2005: 3278–3284

  View details for Web of Science ID 000231726404076

• Decentralized stochastic decision problems and polynomial optimization American Control Conference 2005 (ACC) Cogill, R., Lall, S. IEEE. 2005: 2709–2714

  View details for Web of Science ID 000231947703075

• Cross-layer design for lifetime maximization in interference-limited wireless sensor networks 24th Annual Joint Conference of the IEEE Computer and Communications Societies Madan, R., Cui, S. G., Lall, S., Goldsmith, A. IEEE COMPUTER SOC. 2005: 1964–1975

  View details for Web of Science ID 000231441002041

• Constructing Lyapunov-Krasovskii functionals for linear time delay systems American Control Conference 2005 (ACC) Papachristodoulou, A., Peet, M., Lall, S. IEEE. 2005: 2845–2850

  View details for Web of Science ID 000231947703098

• Distributed algorithms for maximum lifetime routing in wireless sensor networks IEEE Global Telecommunications Conference (GLOBECOM 04) Madan, R., Lall, S. IEEE. 2004: 748–753

  View details for Web of Science ID 000226689900143

• Cross-layer Energy Minimization in TDMA-based Sensor Networks. Cui, S., Madan, R., Goldsmith, A., Lall, S. 2004
• Constructing Lyapunov Functions for Nonlinear Delay-Differential Equations using Semidefinite Programming. Peet, M., Lall, S. 2004
• An Energy-Optimal Algorithm for Neighbor Discovery in Wireless Sensor Networks. Madan, R., Lall, S. 2004
• An Approximate Dynamic Programming Approach to Decentralized Control of Stochastic Systems Cogill, R., Rotkowitz, M., Roy, B., Van, Lall, S. 2004
• A Distributed Algorithm for Maximum Lifetime Routing in Ad Hoc Wireless Networks. Madan, R., Lall, S. 2004
• Multi-Step Motion Planning for Free-Climbing Robots. Bretl, T., Lall, S., Latombe, J., C., Rock, S. 2004
• Decentralized Stochastic Decision Problems and Polynomial Optimization. Cogill, R., Lall, S. 2004
• Decentralized control subject to communication and propagation delays 43rd IEEE Conference on Decision and Control Rotkowitz, M., Lall, S. IEEE. 2004: 4990–4997

  View details for Web of Science ID 000226745604080

• Control of distributed discrete-time systems on graphs American Control Conference Chen, B. D., Lall, S. IEEE. 2004: 2251–2256

  View details for Web of Science ID 000224688300384

• On global stability of Internet congestion control 43rd IEEE Conference on Decision and Control Peet, M., Lall, S. IEEE. 2004: 1035–1041

  View details for Web of Science ID 000226745600172

• Topology independent controller design for networked systems 43rd IEEE Conference on Decision and Control Cogill, R., Lall, S. IEEE. 2004: 1788–1793

  View details for Web of Science ID 000226745601113

• On computation of optimal controllers subject to quadratically invariant sparsity constraints American Control Conference Rotkowitz, M., Lall, S. IEEE. 2004: 5659–5664

  View details for Web of Science ID 000224688300961

• Control design for topology-independent stability of interconnected systems American Control Conference Cogill, R., Lall, S. IEEE. 2004: 3717–3722

  View details for Web of Science ID 000224688300632

• Structure-preserving model reduction for mechanical systems Conference on Complexity and Nonlinearity in Physical Systems held in Honor of Alan Newell Lall, S., Krysl, P., Marsden, J. E. ELSEVIER SCIENCE BV. 2003: 304–18

  View details for DOI 10.1016/S0167-2789(03)00227-6

  View details for Web of Science ID 000186123600019

• Error-bounds for balanced model-reduction of linear time-varying systems IEEE TRANSACTIONS ON AUTOMATIC CONTROL Lall, S., Beck, C. 2003; 48 (6): 946-956

  View details for DOI 10.1109/TAC.2003.812779

  View details for Web of Science ID 000183512100003

• Decentralized control of unstable systems and quadratically invariant information constraints 42nd IEEE Conference on Decision and Control Rotkowitz, M., Lall, S. IEEE. 2003: 2865–2871

  View details for Web of Science ID 000189434100494

• On Structured Semidefinite Programs for the Control of Symmetric Systems. Cogill, R., Lall, S., Parrilo, P., A. 2003
• Dissipation inequalities for distributed systems on graphs 42nd IEEE Conference on Decision and Control Chen, B. D., Lall, S. IEEE. 2003: 3084–3090

  View details for Web of Science ID 000189434100531

• Semidefinite programming relaxations and algebraic optimization in control 7th European Control Conference Parrilo, P. A., Lall, S. LAVOISIER. 2003: 307–21

  View details for Web of Science ID 000185242900013

• A subspace approach to balanced truncation for model reduction of nonlinear control systems INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL Lall, S., Marsden, J. E., Glavaski, S. 2002; 12 (6): 519-535

  View details for DOI 10.1002/rnc.657

  View details for Web of Science ID 000175249100002

• Decentralized control information structures preserved under feedback 41st IEEE Conference on Decision and Control Rotkowitz, M., Lall, S. IEEE. 2002: 569–575

  View details for Web of Science ID 000181352300102

• An LMI solution to the robust synthesis problem for multi-rate sampled-data systems AUTOMATICA Lall, S., Dullerud, G. 2001; 37 (12): 1909-1922

  View details for Web of Science ID 000171914000003

• Dimensional model reduction in non-linear finite element dynamics of solids and structures INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Krysl, P., Lall, S., Marsden, J. E. 2001; 51 (4): 479-504

  View details for Web of Science ID 000168513200005

• Dimensional Model Reduction in Non-Linear Finite Element Dynamics of Solids and Structures. International Journal for Numerical Methods in Engineering Krysl, P., Lall, S., Marsden, J., E. 2001; 51 (4): 479--504
• A new approach for analysis and synthesis of time-varying systems IEEE TRANSACTIONS ON AUTOMATIC CONTROL Dullerud, G. E., Lall, S. 1999; 44 (8): 1486-1497

  View details for Web of Science ID 000081935600001

• Asynchronous hybrid systems with jumps - analysis and synthesis methods SYSTEMS & CONTROL LETTERS Dullerud, G. E., Lall, S. 1999; 37 (2): 61-69

  View details for Web of Science ID 000081103700001

• Empirical Model Reduction of Controlled Nonlinear Systems. Lall, S., Marsden, J., E., Glavaski, S. 1999
• Model Reduction of Complex Systems in the Linear-Fractional Framework. Lall, S., Beck, C. 1999
• Model Reduction for Analysis of Cascading Failures in Power Systems. Parrilo, P., A., Lall, S., Paganini, F., Verghes, G., C., Lesieutre, B., C., Marsden, J., E. 1999
• Asynchronous Hybrid Systems with Jumps -- Analysis and Synthesis Methods. Systems and Control Letters Dullerud, G., Lall, S. 1999; 37 (2): 61--69
• A New Approach for Analysis and Synthesis of Time-Varying Systems. IEEE Transactions on Automatic Control Dullerud, G., Lall, S. 1999; 44 (8): 1486--1497
• Convex l_2 Synthesis for Multidimensional Systems. CDC D'Andrea, R., Dullerud, G., Lall, S. 1998: 1883--1888
• Guaranteed error bounds for model reduction of linear time-varying systems American Control Conference Lall, S., Beck, C., Dullerud, G. IEEE. 1998: 634–638

  View details for Web of Science ID 000075568200135

• Convex l(2) synthesis for multidimensional systems 37th IEEE Conference on Decision and Control D'Andrea, R., Dullerud, G. E., Lall, S. IEEE. 1998: 1883–1888

  View details for Web of Science ID 000079708900372

• Control of spatially varying distributed systems 37th IEEE Conference on Decision and Control Dullerud, G. E., D'Andrea, R., Lall, S. G. IEEE. 1998: 1889–1893

  View details for Web of Science ID 000079708900373

• Guaranteed Error Bounds for Model Reduction of Linear Time-Varying Systems. Lall, S., Beck, C., Dullerud, G. 1998
• Control of Spatially-Varying Distributed Systems. Dullerud, G., D'Andrea, R., Lall, S. 1998
• H-infinity Synthesis for Multi-Rate Hybrid Systems. Lall, S., Dullerud, G. 1997
• H-infinity synthesis for hybrid systems with jumps 1997 American Control Conference Dullerud, G. E., Lall, S. G. IEEE. 1997: 1672–1676

  View details for Web of Science ID A1997BJ29B00358

• H-infinity synthesis for multi-rate hybrid systems 36th IEEE Conference on Decision and Control Lall, S. G., Dullerud, G. E. IEEE. 1997: 2035–2040

  View details for Web of Science ID 000072164400406

• Analysis and synthesis tools for time-varying systems 36th IEEE Conference on Decision and Control Dullerud, G. E., Lall, S. G. IEEE. 1997: 4543–4548

  View details for Web of Science ID 000072164400892

• H-infinity synthesis for hybrid systems with jumps. Dullerud, G., Lall, S. 1997
• Localized Optimal Control of Spatiotemporal Chaos. Grigoriev, R., Lall, S., Dullerud, G. 1997
• Analysis and Synthesis Tools for Time-Varying Systems. Dullerud, G., Lall, S. 1997
• Quasi-Decentralised Control. Utidjian, H., Maciejowsk, J., M., Lall, S. 1995
• Robust Performance and Adaptation Using Receding Horizon H-infinity Control of Time Varying Systems. Lall, S., Glover, K. 1995
• Riccati Differential Inequalities: Suboptimal H-infinity Controllers for Finite Horizon Time-Varying Systems. Lall, S., Glover, K. 1995
• Optimal Discretization of a Continuous-Time Controller. Utidjian, H., Maciejowsk, J., M., Lall, S. 1995
• Robust Control Synthesis in the Time Domain. Cambridge University Lall, S. 1995
• A Game Theoretic Approach to Moving Horizon Control. Advances in Model-Based Predictive Control Lall, S., Glover, K. 1994: 131--144
• Layout Reconstruction of Complex Silicon Chips. IEEE Journal of Solid State Circuits Blythe, S., Fraboni, B., Lall, S., Ahmed, H., de Riu, U. 1993; 28 (2): 138--145