Cellular multicode CDMA capacity for integrated (voice and data) services

This paper analyzes the capacity of a multicode direct sequence-code divisi on multiple access (DS-CDMA) cellular architecture supporting integrated (v oice and data) traffic, The capacity estimate ton the uplink) is the number of voice users and data users, at different data rates, that the system ca n support with quality-of-service (QoS) guarantees (frame error rates (FER, outage probability), This estimate is based on an interference analysis th at considers both perfect and imperfect power control, different user distr ibutions in the cell, and the coverage trade-off resulting from hand-set po wer limitations. Localized interference from high speed data (HSD) users, c ombined with the effects of power control, adversely impacts voice capacity . The analysis investigates the effect of two important factors on capacity : 1) received power levels for the different classes of users and 2) data u ser activity. The results obtained are useful in designing power allocation and burst-level admission control strategies to optimize the capacity.