Class Lossn_erlangfpKt
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- All Implemented Interfaces:
public final class Lossn_erlangfpKt
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Method Summary
Modifier and Type Method Description final static Ret.lossnErlangFPlossn_erlangfp(Matrix nuVec, Matrix Amat, Matrix cVec)This method calculates the Erlang fixed point approximation for loss networks. -
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Method Detail
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lossn_erlangfp
final static Ret.lossnErlangFP lossn_erlangfp(Matrix nuVec, Matrix Amat, Matrix cVec)
This method calculates the Erlang fixed point approximation for loss networks.
Calls (jobs) on route (class) r arrive according to a Poisson rate nu_r, r=1,...,R. Call service times on route r have unit mean.
The link capacity requirements are defined as: sum<sub>r</sub> A(j, r) n(j, r) < C(j) for all links j=1,...,J, where n(j, r) counts the calls on route r on link j.
- Parameters:
nuVec- A Matrix (1xR) representing the arrival rate of route (class) r = 1,...,R.Amat- A Matrix (J,R) representing the capacity requirement of link j for route r = 1,...,R.cVec- A Matrix (J,1) representing the available capacity of link j.- Returns:
lossnErlangFPReturn which contains:
qLen (1xR): mean queue-length for route r = 1,...,R calls.
loss (1xR): loss probability for route r = 1,...,R calls.
eBlock (Jx1): blocking probability for link j = 1,...,J.
Note: nu_r may be replaced by a utilization rho_r=nu_r/mu_r, where mu_r is the service rate for route r. Example: lossn_erlangfp(new Matrix("0.3,0.1"), new Matrix("1,1;1,4"), new Matrix("1,3")).qLen.print();
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