TITLE:
Real Time Systems with Nonpreemptive Priorities and Ample Maintenance Facilities
AUTHORS:
Joseph Kreimer, Edward Ianovsky
KEYWORDS:
Performance, Priority, Queueing, Real Time System, Unmanned Aerial Vehicles
JOURNAL NAME:
Journal of Computer and Communications,
Vol.3 No.7,
July
20,
2015
ABSTRACT: We consider a real time data acquisition
and processing multiserver system with identical servers (such as unmanned
aerial vehicles, machine controllers, overhearing devices, medical monitoring
devices, etc.) which can be maintained/programmed for different kinds of
activities (e.g. passive or active). This system provides a service for real
time tasks arriving via several channels (such as surveillance regions,
assembly lines, communication channels, etc.) and involves maintenance. We
focus on the worst case analysis of the system with ample maintenance
facilities exponentially distributed time to failure and maintenance times. We
consider two kinds of models (with and without nonpreemptive priorities) and
provide balance equations for steady state probabilities and various
performance measures, when both operation and maintenance times are
exponentially distributed.