Trade-off analysis of forward link capacity in IS-95-based CDMA cellular systems

This paper provides an analytic method to determine how many paging channel s can be simultaneously used with traffic channels in the same CDMA forward link. So far, since one or two paging channels are enough to convey contro l messages from bases to mobiles, little considerations have been given to the paging channel configuration. CDMA network operators, however, recently plan to provide optional services which highly utilize the paging channel. Thus, more paging channels are required for the latest situation. Since th e total number of channels that can be used in the forward link is limited by the interfering cellular environments, less traffic channels should be u sed if additional paging channels are required. It is the objective of this paper to examine the capacity of forward link in terms of paging and traff ic channels so as to determine the impact of introducing value-added servic es via paging channels. Different capacity regions are presented for variou s cellular environments.