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

被引：77
|
作者：
Ayyagari, D [1 ]
Ephremides, A
机构：
[1] GTE Labs Inc, Waltham, MA 02154 USA
[2] Univ Maryland, Dept Elect Engn, College Pk, MD 20742 USA
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 1999年 / 17卷 / 05期
关键词：
capacity; CDMA; multimedia;
D O I：
10.1109/49.768206
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper analyzes the capacity of a multicode direct sequence-code division multiple access (DS-CDMA) cellular architecture supporting integrated (voice 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 can support with quality-of-service (QoS) guarantees (frame error rates (FER, outage probability), This estimate is based on an interference analysis that considers both perfect and imperfect power control, different user distributions in the cell, and the coverage trade-off resulting from hand-set power limitations. Localized interference from high speed data (HSD) users, combined 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 user activity. The results obtained are useful in designing power allocation and burst-level admission control strategies to optimize the capacity.
引用
收藏
页码：928 / 938
页数：11
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