IJSRP, Volume 3, Issue 9, September 2013 Edition [ISSN 2250-3153]
Dr. G. AYYAPPAN, S.SHYAMALA
This paper investigate a queueing model where in customers arrive in batches
according to compound Poisson process with rate and are served one by one in FIFO basis. All incoming customers demand the rst essential service wherein only some of them demand the second optional service.