一种用于CDMA反向链路的公共速率控制算法  

A Common Rate Control Algorithm of Reverse Link in CDMA System

作　　者：高月红[1] 张欣[1] 杨大成[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《电子与信息学报》2007年第6期1314-1318,共5页Journal of Electronics & Information Technology

摘　　要：该文从实际应用角度出发,提出了一种改进的CDMA系统反向链路公共速率控制算法。在该算法中,分组数据业务移动台根据外环功率控制设置点的变化以及反向激活比特依概率控制其自身速率提高或降低。文中对概率取值进行了分析研究并构造了一种复杂度较低的次优解。经过系统级仿真,并与已有的基于反向激活比特的速率控制算法相比较,各项结果显示了改进后的算法能够保持用户服务质量(Quality of Service,QoS),并从一定程度上提高了系统吞吐量和资源利用率。This paper proposes an improved reverse link common rate control algorithm in CDMA system from practical utilization aspect. In this scheme, packet data service mobile controls its data rate to rise or decrease according to the change of Outer-Loop Power Control （OLPC） set point and Reverse Activity （RA） bit in a probabilistic manner. Analysis of probabilities is also presented in this paper and a sub-optimal and less complex solution is constructed. It is proved with system level simulation results that the improved scheme can enlarge system throughput and enhance resource utilization while maintaining Quality of Service （QoS） compared to existing algorithm only based on reverse active bit.

关 键 词：CDMA 反向链路 速率控制 外环功率控制 反向激活比特 

分 类 号：TN914.52[电子电信—通信与信息系统]