Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system

CHEN Shu-ping; DU Jiu-hui; WANG Wen-bo

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Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system

更新时间：2024-10-14

- Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system
- Issue 1, Pages: 124-131(2006)
- 作者机构：
  
  1. 北京邮电大学无线信号处理与网络实验室
  2. 北京邮电大学无线信号处理与网络实验室,北京,100876
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2006
- 稿件说明：
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CHEN Shu-ping, DU Jiu-hui, WANG Wen-bo. Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system[J]. 2006, (1): 124-131.
DOI：

CHEN Shu-ping, DU Jiu-hui, WANG Wen-bo. Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system[J]. 2006, (1): 124-131. DOI：

摘要

理论分析了链路自适应技术在TDD-HSDPA/SA系统中遇到的信道质量波动较为严重的问题

提出了两种改进方案

通过动态系统级仿真进行了仿真研究

结果表明这两种方案可显著改进系统剩余误块率

并提升系统吞吐量。第一种方案更适用于TDD/FDD系统混合组网的情况

第二种方案适用于TDD系统单独组网的情况。

Abstract

The wireless channel fluctuation resulted from smart antennas in TDD-HSDPA/SA（time division duplex-high speed downlink packet access /smart antennas）system

which caused traditional link adaptation technologies invalid

was theoretically investigated.Two kinds of novel link adaptation schemes were proposed to deal with this issue.A dynamic system level simulator was established to evaluate the performances of the two schemes.Simulation results indicate that both of them have great improvement in system residual BLER and have certain system throughput gain.The first one suits for the hybrid networking case of TDD and FDD（frequency division duplex）mode

while the second one can serve the case of alone TDD networking.

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