• N.Subashini
• N. Anusheela

In this study we propose a procedure to find the various performance measures in terms of crisp values for M/M/1 retrial queuing system with breakdowns, in which the arrival rate, service rate, retrial rate, failure rate and repair rate are Fuzzy numbers. DSW algorithm is used to define membership functions of the performance measures of retrial queuing system with unreliable server. The algorithm is based on the α – cut representation of fuzzy sets in a standard interval analysis. Numerical example is also illustrated to check the validity of the model.

Retrial queues, α – cuts, Pentagonal fuzzy number, DSW algorithm.

"Analysis of Fuzzy Retrial Queue With Unreliable Server Using Pentagonal Fuzzy Numbers", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.261-265, April-2019, Available :http://www.jetir.org/papers/JETIR1904648.pdf

"Analysis of Fuzzy Retrial Queue With Unreliable Server Using Pentagonal Fuzzy Numbers", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp261-265, April-2019, Available at : http://www.jetir.org/papers/JETIR1904648.pdf