Maximum entropy analysis to the N policy M/G/1 queueing system with a removable server

Kuo Hsiung Wang*, Shu Lung Chuang, W.l. Pearn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


We study a single removable server in an M/G/1 queueing system operating under the N policy in steady-state. The server may be turned on at arrival epochs or off at departure epochs. Using the maximum entropy principle with several well-known constraints, we develop the approximate formulae for the probability distributions of the number of customers and the expected waiting time in the queue. We perform a comparative analysis between the approximate results with exact analytic results for three different service time distributions, exponential, 2-stage Erlang, and 2-stage hyper-exponential. The maximum entropy approximation approach is accurate enough for practical purposes. We demonstrate, through the maximum entropy principle results, that the N policy M/G/1 queueing system is sufficiently robust to the variations of service time distribution functions.

Original languageEnglish
Pages (from-to)1151-1162
Number of pages12
JournalApplied Mathematical Modelling
Issue number12
StatePublished - 1 Dec 2002


  • Control
  • Lagrange's method
  • M/G/1 queue
  • Maximum entropy

Fingerprint Dive into the research topics of 'Maximum entropy analysis to the N policy M/G/1 queueing system with a removable server'. Together they form a unique fingerprint.

Cite this