Sean Messenger

Papers

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About

Sean Messenger is a leading researcher in multi-robot systems, with a primary focus on decentralized motion planning in constrained environments. His most influential work introduces the Push-Swap-Wait (PSW) algorithm, a scalable and complete approach that enables multiple robots to navigate confined spaces without centralized coordination. This algorithm extends the classic "push and swap" paradigm, achieving both completeness and decentralization—a significant leap forward for applications in warehouse automation, swarm robotics, and search-and-rescue operations. Messenger’s contributions have been recognized with 18 citations on his seminal 2014 paper, which remains a cornerstone for researchers tackling the challenge of collision-free, deadlock-free multi-agent navigation. His work bridges theoretical guarantees with practical scalability, making him a key figure in the field. Beyond this, Messenger continues to advance the frontiers of autonomous coordination, inspiring new generations of roboticists to design systems that are both robust and efficient in tight, unpredictable spaces.