一种具有CAZAC序列的MIMO-OFDM系统同步新方法

Wei Wei, Yuan Xiaolu
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引用次数: 3

摘要

提出了一种新的基于CAZAC序列的MIMO-OFDM系统同步方法。利用CAZAC序列对帧时序目标函数进行锐化,提高了其精度。结合帧和符号同步,时序算法只需要一步。减少了计算量,准确地定义了第一通道路径。以较低的复杂度在时域内实现积分频偏校正。该方案不仅提高了同步精度,而且大大降低了同步复杂度。仿真结果表明,该方法在多径信道下的性能优于传统方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A New Synchronization Method for MIMO-OFDM Systems with CAZAC Sequence
A new synchronization method for MIMO-OFDM systems with CAZAC sequence is presented in this paper. Frame timing objective functions is sharpen by using CAZAC Sequence, and its accuracy is also improved. Combing frame and symbol synchronization, only one step is needed for timing algorithm. Reducing the computation load and defining the first channel path accurately. Integral frequency offset correction is achieved in time domain with a lower complexity. The proposed scheme can not only improve the precision of synchronization, but also reduced the complexity greatly. Simulation result shows a better performance than traditional method especially in multi-path channel.
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