Erlang capacity of multiclass CDMA cellular system
Josefina Castañeda-Camacho, D. Lara-Rodríguez · 2002
In this paper we evaluate the reverse link capacity of direct sequence-code division multiple access (DS-CDMA) cellular system supporting multiclass services. We present an approximated analysis of the Erlang capacity, considering that blocking in CDMA occurs when the interference level reaches a predetermined level above the background noise level of mainly thermal origin. We investigate the effect of important factors on capacity: (1) variation of the energy-to-interference E/sub b//I/sub 0/ ratio according to propagation conditions for each multiservice user, (2) multiservice user activity, (3) multicode or multirate transmission, (4) handoff, (5) Poisson arrival process and (6) non uniform load in each cell.