SIAM Journal on Computing
A Method for the Solution of the Nth Best Path Problem
Journal of the ACM (JACM)
Some Deadlock Properties of Computer Systems
ACM Computing Surveys (CSUR)
Cooperating Sequential Processes, Technical Report EWD-123
Cooperating Sequential Processes, Technical Report EWD-123
Simulation-aided path planning of UAV
Proceedings of the 39th conference on Winter simulation: 40 years! The best is yet to come
Preventive what-if analysis in symbiotic simulation
Proceedings of the 40th Conference on Winter Simulation
Research issues in symbiotic simulation
Winter Simulation Conference
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Autonomous guided vehicle systems (AGVSs) are popular in production systems, container ports, and intra-logistics. An efficient deadlock avoidance algorithm preventing long vehicle blockings and solutions to idle vehicles blocking others are required for bidirectional AGVSs. A symbiotic simulation resources scheduling decision support method is developed, including identification of route segments where deadlocks can potentially occur and an accordingly integrated banker's algorithm. Based on multiple online what-if simulations, the best deadlock safe resources schedule is determined for each short period just before the vehicles move. This proactive what-if analysis of resources utilization, alternative routes and dynamic parking strategies allows the minimization of the vehicles' total blocking time. Combining symbiotic simulation and a real time control of autonomous guided vehicles increases the AGVS's efficiency -- in terms of deadlock safety and minimizing the total vehicle blocking time. This method enables AGVS performance evaluation under arbitrary dispatching, routing, scheduling and guide-path design strategies.