为研究正交频分复用(OFDM)系统的带外(OOB)辐射和高峰值平均功率比(PAPR)两个问题,阐述了两个问题的成因和传统技术的优势与不足,介绍了常见的预编码矩阵.根据OFDM系统原理,对OOB辐射和PAPR问题进行建模,构建新的预编码系统模型.最后对传统OFDM、预编码、联合预编码三者进行了比较,并展望了预编码干扰控制需进一步研究的方向.%In order to research out-of-band ( OOB) radiation and high peak-to-average power ratio ( PA-PR) in orthogonal frequency division multiplexing ( OFDM) system,this paper discusses the causes of a-bove two problems and the advantages and disadvantages of traditional technology,and introduces the com-mon precoding matrices. According to the principle of OFDM system, the model of OOB radiation and PA-PR is modeled, and a new precoding system model is constructed. Finally, the traditional OFDM, precod-ing and joint precoding are compared, and the open issues for future research on precoding for interference control are pointed out to promote new research and development in this field.
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