Simulation of General Packet Radio Service (GPRS) Network
Road map
What is GSM?
A GSM network
Data over GSM
Solution: General Packet Radio Service (GPRS)
A GPRS network
GPRS introduces two new nodes
Goal of the project
Why modeling and simulation?
What is OPNET?
New OPNET node model
New packet format
New process model
Attach procedure
Attach procedure: accepted
Attach procedure: rejected
Activation procedure
Activation procedure: accepted
Activation procedure: rejected
GPRS model project view
Network configuration
Network configuration (cont.)
First simulation scenario
Mobile Station rejected in attach
Mobile Station rejected in activation
Two classes of QoS: packet end-to-end delay
Two classes of QoS: Mobile Station using the fast link
Two classes of QoS: Mobile Station using the slow link
Second simulation scenario
Number of Attach messages
Signaling procedures processing time
Improvements
Conclusions
Conclusions (cont.)
References
Email: rickyng@motorola.com