Traffic Analysis of Partially Overlaid AMPS/ANSI-136 Systems
R. RamÉsh, Kumar Balachandran · Kluwer Academic Publishers eBooks · 2005
The problem of calculating the traffic allowable for a certain grade of service in a cellular network employing both AMPS and ANSI-136 channels is considered. The dual-mode capability of the ANSI-136 users enables the system to assign them to AMPS channels if ANSI-136 channels are blocked; the two pools of users cannot be treated independently. An analytical method for the calculation of the traffic is derived and the actual capacity improvements obtained by a partial deployment of ANSI-136 are shown. The chapter derives a strategy to maximize the number of ANSI-136 users supported for a given number of AMPS users. The case of reconfigurable transceivers at the base station is also considered and the allowable traffic derived. It is seen that a significant increase in traffic can be achieved by this option, albeit at the price of increased system complexity.