中国电子科技集团公司第五十四研究所;洛阳师范学院物理与电子信息学院;
针对传统选择映射方法复杂度过高和需要传输边信息的问题,提出了低复杂度的盲选择映射方法。该方法巧妙地设计了一组相位旋转矢量,并将一个或几个正交频分复用符号看作一个符号块,使得每个符号块中都有一个符号具有导频符号,利用设计的相位旋转矢量对应的转换矩阵与原信号块的时域相乘运算代替反傅里叶变换运算产生的备选信号块。在接收端通过导频符号估计出包含相位旋转矢量信息的等效信道,从而实现了不需要边信息的盲数据检测。分析与仿真结果表明,与常规选择映射方法相比,提出的方法复杂度大大降低,在不需要传输边信息的情况下可以达到相近的降峰均比性能。
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基本信息:
DOI：
中图分类号:TN929.53
引用信息:
[1]纪金伟,夏玉杰.一种降低OFDM系统PAPR的低复杂度盲SLM方法[J].无线电工程,2017,47(05):27-31.
基金信息:
河北省自然科学基金资助项目(F2014210123)