4Multirate Elastic Adaptive Retry Loss Models
In this chapter we consider multirate loss models of random arriving calls not only with elastic bandwidth requirements upon arrival but also elastic bandwidth allocation during service. Calls may retry several times upon arrival, requiring less bandwidth each time, in order to be accepted for service. If call admission is not possible with the last (least) bandwidth requirement then bandwidth compression is attempted.
4.1 The Elastic Single‐Retry Model
4.1.1 The Service System
In the elastic single‐retry model (E‐SRM), we consider a link of capacity 
b.u. that accommodates elastic calls of 
service‐classes. Calls of service‐class 
follow a Poisson process with mean arrival rate 
and have a peak‐bandwidth requirement of 
b.u. and an exponentially distributed service time with mean 
. To introduce bandwidth compression, we permit the occupied ...
Get Efficient Multirate Teletraffic Loss Models Beyond Erlang now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
