The M/M/n Queuing Modle Which Service Rate Takes Constants In Different Interval Or Input Rate Takes Change In Index

We studied M / M/1 queuing modle in the literature [1] that the new customer join in system with probability (?) and service rateμ( k) is a constantμwhen the system captain is k , then we studied M / M/1 queuing modle when input rateλ( k) is an unchanged numberλ, and service rate (?) Meanwhile , we studied M / M /n queuing modle when input rate and service rate remain immovable all the time, gained the system stable distribution and key indicators.This article is a comprehensive result. At first, we discuss M / M /n queuing modle that input rateλ( k) is a constantλ, service rate and (?) ; at second, we discuss M / M /n queuing modle which the new customer join in system with probabilityαk = ???1 a, k ? n . iiff 0k≤≥kn (≤0 n