Mobility traffic analysis for PACS using various subscriber profiles

The signaling traffics between AMs and HLR are SS7 signaling messages in the PACS system. These signaling messages are for the transportation of SU registration, call origination, and call delivery, and also for authentication in these procedures. These signaling traffics are referred to mobility management traffic. In addition, the performance of mobility management traffic plays the essential role of the performance of the whole PACS system network. In this paper, we propose an M/G/1 traffic analysis on the PACS mobility traffic between AMs and HLR by using the mobile, business, and residential subscriber profiles. In addition, four performance metrics are investigated to observe the mobility characteristics with various subscriber profiles, which include waiting times at AM and HLR, average query response times, average update response times, and the expected numbers of message per second exchanged between AM and HLR. Finally, some observations and comments are made for the PACS system.