WiMAX系统一种改进的帧粗同步算法

在WiMAX系统中,为保证基站对接收数据的正确解调,提出一种改进的帧粗同步算法.为削弱训练序列的相关性得到的尖锐峰值,在发送帧之前加干扰长前导训练序列,得到加干扰的新长前导结构,并在此基础上设计了实现过程.仿真结果表明,与经典的SC算法相比,新算法不但继承SC算法优点,而且消除了峰值模糊平台的困扰.

An improved frame coarse synchronization algorithm in WiMAX system

Ensuring the base station with the correct demodulation for the received data in WiMAX system, an improved frame coarse synchronization algorithm is put forward. In order to reduce the sharp peak which is got from the correlation of training sequence, interferential long preamble training sequence is introduced before sending frame. The new structure of interferential long preamble is obtained, and the realization process is designed. The simulation results show that: compared with the classical SC algorithm, the new algorithm not only inherits the advantage of SC algorithm, but also eliminates the puzzle of peak fuzzy platform.