Performance analysis of voice message service in CDMA cellular systems

被引：0
|
作者：
Liu, S [1 ]
Niu, ZS [1 ]
Huang, DW [1 ]
机构：
[1] Tsing Hua Univ, Dept Elect Engn, State Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China
来源：
2003 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOL 1 AND 2, PROCEEDINGS | 2003年
关键词：
Voice Message Service (VMS); CDMA; Markov model; soft handoff;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this' paper, we propose and analyze a preemption based admission control policy for an integrated voice and Voice Message Service (VMS) CDMA system. Granted with the priority, the performance of voice calls is not affected by VMS. A multicode scheme is used for VMS traffic to transmit on multiple spreading codes in parallel. The SIR constraints of voice and VMS calls are taken into account to identify the system capacity. By using a two-dimensional Markov model, the performance of the integrated system is evaluated. Under different system traffic loads, QoS-based system capacities are obtained and optimal coding schemes for VMS are specified.. Finally, the effect of the VMS buffer size is discussed.
引用
收藏
页码：891 / 895
页数：5
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