电信科学

• • 上一篇    下一篇

一种改进的TD-LTE下行定时同步算法

白文乐,王 旭,张永梅,彭木根   

  1. 北方工业大学信息工程学院 北京邮电大学信息与通信工程学院;北方工业大学信息工程学院;北方工业大学信息工程学院;北京邮电大学信息与通信工程学院
  • 出版日期:2015-01-15 发布日期:2015-01-15
  • 基金资助:
    国家自然科学基金资助项目（No.61371143），国家科技支撑计划基金资助项目（No.2012BAH04F00）

An Improved Algorithm for TD-LTE Downlink Time Synchronization

Bai Wenle,Wang Xu,Zhang Yongmei and Peng Mugen   

  1. School of Information Engineering, North China University of Technology School of Information and Communication Engineering, Beijing University of Posts and Telecommunications;School of Information Engineering, North China University of Technology;School of Information Engineering, North China University of Technology;School of Information and Communication Engineering, Beijing University of Posts and Telecommunications
  • Online:2015-01-15 Published:2015-01-15
  • Supported by:
    National Natural Science Foundation Project (No.61371143), Beijing Municipal Natural Foundation Project (No.4132026)

被引次数

2

摘要： 针对正交频分复用定时同步实际应用问题，利用循环前缀的统计能量差和统计相关特性，提出了一种改进的TD-LTE下行定时同步算法，减小了计算复杂度，同时能检测循环前缀类型。仿真结果表明，算法在多径衰落信道下，特别是小信噪比条件下，定时同步性能优越，并对归一化频偏和多普勒频移变化具有较强的适应能力。

Abstract: Aimed at the application problem of timing synchronization algorithm in orthogonal frequency division multiplexing system, an improved algorithm for TD-LTE downlink time synchronization was proposed. It utilizes statistical energy difference and correlation of cyclic prefix to improve the system performance, which reduces the computational complexity, and can detect the cyclic prefix types. The simulation results demonstrate that the performance of the new method is excellent in multi-path fading channels, especially in the case of small SNR. And it is robust against the normalized frequency offset and Doppler shift.


论文引用格式：白文乐,王 旭,张永梅等.一种改进的TD-LTE下行定时同步算法.电信科学,2015030
Bai L W,Wang X,Peng Y M,et al.An improved algorithm for TD-LTE downlink time synchronization.Telecommunications Science,2015030

No Suggested Reading articles found!