UP Paper 1383 US-T-TDOWN
Dynamic Changes in Subscriber Behavior and their Impact on the Telecom Network in Cases of Emergency
Jrad,AhmadLucent Technologies
Richman,StevenLucent Technologies
O’Reilly,GerardLucent Technologies
Kelic,AndjelkaSandia National Laboratories
Conrad,StephenSandia National Laboratories
The telecommunication network is recognized by the federal government as one of the critical national infrastructures that must be maintained and protected against debilitating attacks. We have previously shown how failures in the telecommunication network can quickly lead to telecommunication congestion and lead to extended delays in getting calls to complete successfully. However, even if the telecom network remains fully operational, the special telecommunication demands that materialize at times of emergencies and can dynamically change based on subscriber behaviour can also adversely affect the performance of the overall telecommunication network. The Network Simulation Modeling and Analysis Research Tool (N-SMART) has been developed to support detailed wireline and wireless network simulations. N-SMART is a discrete event (call level) telecom model that simulates capacities, blocking levels, retrials, and time to complete calls for both wireline and wireless networks. N-SMART supports the capability of simulating subscriber reattempt behaviour under various scenarios. Using this capability we will show how the network can be adversely impacted by sudden changes in subscriber behavior. We will also explore potential solutions and ways of mitigating those impacts.