Mt/G/∞ queues with sinusoidal arrival rates
Management Science
The physics of the Mt/G/ ∞ symbol Queue
Operations Research
Peak congestion in multi-server service systems with slowly varying arrival rates
Queueing Systems: Theory and Applications
Strong approximations for Markovian service networks
Queueing Systems: Theory and Applications
Designing a Call Center with Impatient Customers
Manufacturing & Service Operations Management
Engineering Solution of a Basic Call-Center Model
Management Science
Call Centers with Impatient Customers: Many-Server Asymptotics of the M/M/n + G Queue
Queueing Systems: Theory and Applications
Fluid Models for Multiserver Queues with Abandonments
Operations Research
Staffing of Time-Varying Queues to Achieve Time-Stable Performance
Management Science
The Gt/GI/st+GI many-server fluid queue
Queueing Systems: Theory and Applications
OM Forum: Offered Load Analysis for Staffing
Manufacturing & Service Operations Management
Data-stories about (im)patient customers in tele-queues
Queueing Systems: Theory and Applications
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An algorithm is developed to determine time-dependent staffing levels to stabilize the time-dependent abandonment probabilities and expected delays at positive target values in the Mt/GI/st + GI many-server queueing model, which has a nonhomogeneous Poisson arrival process the Mt, has general service times the first GI, and allows customer abandonment according to a general patience distribution the +GI. New offered-load and modified-offered-load approximations involving infinite-server models are developed for that purpose. Simulations show that the approximations are effective. A many-server heavy-traffic limit in the efficiency-driven regime shows that i the proposed approximations achieve the goal asymptotically as the scale increases, and ii it is not possible to simultaneously stabilize the mean queue length in the same asymptotic regime.