{ "id": "1104.3192", "version": "v2", "published": "2011-04-16T03:44:09.000Z", "updated": "2012-08-18T06:13:12.000Z", "title": "On Large Delays in Multi-Server Queues with Heavy Tails", "authors": [ "Sergey Foss", "Dmitry Korshunov" ], "journal": "Mathematics of Operations Research, 37 (2012) 201-218", "doi": "10.1287/moor.1120.0539", "categories": [ "math.PR" ], "abstract": "We present upper and lower bounds for the tail distribution of the stationary waiting time $D$ in the stable $GI/GI/s$ FCFS queue. These bounds depend on the value of the traffic load $\\rho$ which is the ratio of mean service and mean interarrival times. For service times with intermediate regularly varying tail distribution the bounds are exact up to a constant, and we are able to establish a `principle of $s-k$ big jumps' in this case (here $k$ is the integer part of $\\rho$), which gives the most probable way for the stationary waiting time to be large. Another corollary of the bounds obtained is to provide a new proof of necessity and sufficiency of conditions for the existence of moments of the stationary waiting time.", "revisions": [ { "version": "v2", "updated": "2012-08-18T06:13:12.000Z" } ], "analyses": { "subjects": [ "60K25", "90B22", "60F10" ], "keywords": [ "stationary waiting time", "heavy tails", "large delays", "multi-server queues", "intermediate regularly varying tail distribution" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1104.3192F" } } }