Robust uplink power control algorithm for multimedia CDMA cellular systems

GU Hong-yu; YANG Chen-yang

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Robust uplink power control algorithm for multimedia CDMA cellular systems

更新时间：2024-10-14

- Robust uplink power control algorithm for multimedia CDMA cellular systems
- Vol. 30, Issue 5, Pages: 114-121(2009)
- 作者机构：
  
  北京航空航天大学电子信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.533
- Published：2009
- 稿件说明：
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GU Hong-yu, YANG Chen-yang. Robust uplink power control algorithm for multimedia CDMA cellular systems[J]. 2009, 30(5): 114-121.
DOI：

GU Hong-yu, YANG Chen-yang. Robust uplink power control algorithm for multimedia CDMA cellular systems[J]. 2009, 30(5): 114-121. DOI：

摘要

研究了同时承载带宽保障业务和尽力而为业务的多媒体CDMA蜂窝网络上行链路顽健功率控制问题。考虑业务突发性、链路增益估计误差以及小区间干扰等因素

通过推导中断概率提出了一种非线性迭代算法。在给定尽力而为业务数据率分配方案的情况下

该非线性迭代算法能够判断是否可以通过功率控制有效地保证带宽保障业务和尽力而为业务的服务质量。在此基础上

分别为支持离散数据率和连续数据率的两类多媒体CDMA蜂窝网络设计了相应的上行链路功率控制算法。最后

通过仿真验证了所提出非线性迭代算法的收敛性

并通过与一种次优功率控制算法进行比较说明了所提出功率控制算法的性能优势。

Abstract

Robust uplink power control problem in multimedia CDMA cellular systems containing both QoS-guaranteed （QG） and best-effort （BE） traffics was investigated. Taking the traffic burstiness

the link gain estimation error and other cell interference into account

the outage probability was derived and a nonlinear iterative algorithm （NIA） was obtained. Given a data rate allocation profile for BE traffics

the NIA could determine whether the link reliability of both QG and BE traffics could be guaranteed by power control. Based on the proposed NIA

the power and rate control algorithms （PRCAs） was further developed for multimedia CDMA systems supporting continuous and discrete data rate

respectively. Finally

the convergence of the proposed NIA was validated and the performance advantage of the proposed PRCAs was shown to a suboptimal algorithm by simulation.

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