一种用于CDMA反向链路的公共速率控制算法

高月红; 张欣; 杨大成

doi:10.3724/SP.J.1146.2005.01559

一种用于CDMA反向链路的公共速率控制算法

doi: 10.3724/SP.J.1146.2005.01559

计量
- 文章访问数: 2909
- HTML全文浏览量: 89
- PDF下载量: 554
- 被引次数: 0
出版历程
- 收稿日期: 2005-12-02
- 修回日期: 2006-05-18
- 刊出日期: 2007-06-19

A Common Rate Control Algorithm of Reverse Link in CDMA System

摘要

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。
- CDMA;反向链路;速率控制;外环功率控制;反向激活比特
Abstract: 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.

HTML全文

参考文献(1)

Chulajata T and Kwon H M. Combinations of power controls for cdma2000 wireless communications system. Vehicular Technology Conference (VTC-Fall 2000), Boston, USA, 24-28 Sept. 2000, vol.2: 638-645.[2]Rintamki M, Koivo H, and Hartimo I. Adaptive closed-loop power control algorithms for CDMA cellular communication systems[J].IEEE Trans. on Vehicular Technology.2004, 53(6):1756-1768[3]Wu Qiang. Performance of optimum transmitter power control in CDMA cellular mobile systems[J].IEEE Trans. on Vehicular Technology.1999, 48(2):571-575[4]Dixit S, Guo Y, and Antoniou Z. Resource management and quality of service in third-generation wireless networks[J].IEEE Communications Magazine.2001, 39(2):125-133[5]Chakravarty S, Pankaj R, and Esteves E. An algorithm for reverse traffic channel rate control for CDMA2000 high rate packet data systems. IEEE GLOBECOM '01, San Antonio, Texas, USA, 2001, vol. 6: 3733-3737.[6]Jeong Dong Geun and Jeon Wha Sook. Congestion control schemes for reverse link data transmission in multimedia CDMA systems[J].IEEE Trans. on Vehicular Technology.2003, 52(6):1489-1496[7]3GPP2. 1xEV-DV evaluation methodology (V13). C30- 20030604-002, 2001.[8]Sampath A, Kumar S P, and Holtzman J M. On setting reverse link target SIR in a CDMA system, Vehicular Technology Conference (VTC-Spring 1997), Phoenix, USA, 4-7 May 1997, vol.2: 929-933.[9]Tinnakornsrisuphap P and Lott C. On the fairness and stability of the reverse link MAC layer in cdma2000 1x EV-DO. IEEE International Conference on Communications (ICC 2004), Paris, France, 20-24 June, 2004, vol. 1: 144-148.

施引文献

资源附件(0)

访问统计