Question is,
N sources are statistically time division multiplexed into two
servers, with probability p to Server A1 and the rest to Server A2.
Let R(subscript i) be the data rate of source i in bps and alpha(sub
i) be the mean fraction of time source i is transmitting, 0<alpha(sub
i)<1, for all i.  Denote micro sign(sub A1) bps and micro
sign(subscript A2) bps be the service rate(constant) for sever A1 and
A2.
a) Find the aggregate total mean data rate to server A1
b) Find the aggregate total mean data rate to server A2
c) Find the average number of bits in the queue for server A1
d) Find the average number of bits in the queue for server A2
e) Determine the relative buffer size requirement between Server A1
and A2. Justify your answer.

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Request for Question Clarification by nenna-ga on 18 Oct 2004 09:38 PDT

Hello,

Could you please tell us more about the situation this question
pertains to so we can get you the best answer possible?

Nenna-GA
Google Answers Researcher

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Clarification of Question by putratki-ga on 18 Oct 2004 17:45 PDT

I guess, the question is related with M/D/2 server queueing system.  
In part a, to find arrival rate of server A1 with given probability.
In part b, to find arrival rate of server A2 with given probability.
In part c and d, the average number of message units in queues?

We can think one buffer connected with parallel servers which are A1 and A2.