A teletraffic capacity analysis method for multiclass CDMA cellular systems

A capacity evaluation method for cellular systems with CDMA is introduced. In CDMA cellular systems, the capacity of each cell depends on the actual interference produced by users supported by the other cells of the systems. This is because cell capacity is interference-limited. In this way, valid configurations of the system in terms of users per cell taking into account the average interference are determined. A possible distribution of users per cell where all the users have a required E_b/N₀ for each different service is considered as a valid configuration. This information is used in the development of a birth and death process to evaluate the teletraffic system capacity. A unidimensional cellular system is used in the analysis and numerical results are obtained for different circuit switched services provided for the cdma2000 standard.