383 citations · 773 across the 39 of their papers we have counts for
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An Algebraic Approach to the Control of Decentralized Systems
Laurent Lessard, Sanjay Lall
Optimal decentralized controller design is notoriously difficult, but recent research has identified large subclasses of such problems that may be convexified and thus are amenable…
Optimal Decentralized State-Feedback Control with Sparsity and Delays
Andrew Lamperski, Laurent Lessard
This work presents the solution to a class of decentralized linear quadratic state-feedback control problems, in which the plant and controller must satisfy the same combination of…
Convexity of Decentralized Controller Synthesis
Laurent Lessard, Sanjay Lall
In decentralized control problems, a standard approach is to specify the set of allowable decentralized controllers as a closed subspace of linear operators. This then induces a co…
Optimal Control of Two-Player Systems with Output Feedback
Laurent Lessard, Sanjay Lall
In this article, we consider a fundamental decentralized optimal control problem, which we call the two-player problem. Two subsystems are interconnected in a nested information pa…
Structural Results and Explicit Solution for Two-Player LQG Systems on a Finite Time Horizon
Laurent Lessard, Ashutosh Nayyar
It is well-known that linear dynamical systems with Gaussian noise and quadratic cost (LQG) satisfy a separation principle. Finding the optimal controller amounts to solving separa…