Dear All

I need your help about one probability and stochastic problem.
Suppose that there is one file with size of s packets.
There is a Poisson process that generates the requests for this file.
Each request will lead to s consecutive requests (packet requests) with constatnt rate r.
It means that requests for file are generated by Poisson process and each file request generate s packet requests with constant rate r.(time between packet request of one file is