On the traffic estimation and engineering of GSM network

We propose a detailed analysis and estimation of SS7 signaling traffic performance on GSM databases in Taiwan. With the network engineering and configuration, a fluid flow mobility model is employed to investigate the performance of signaling traffic between databases such as home location registers (HLRs), visitor location registers (VLRs), and equipment identification register (EIR). We also propose the mobility-related signaling traffic on HLRs, VLRs, and EIR to calculate transaction message loads per second on these databases. In addition, the minimum numbers of signaling link required for each VLR, HLR and EIR are estimated with both low and high mobile speeds as well as various average call rates. Furthermore, the estimation and engineering of the processing time capacity of these databases are investigated under various average call rates. Finally, the results in our study are proved to efficiently support the engineered and implementation plan of the existing Taiwan's GSM network.