一种高频场景候选波形方案

A Candidate Waveform Scheme for High-Frequency Scenarios

针对高频场景(>52.6 GHz)面临的主要问题:路径损耗比较大、功率放大器的效率比较低和相位噪声比较高等,该文设计了一种高频场景候选波形方案。该候选波形方案包括基本符号结构的增强设计、发射端和接收端结构的增强设计,以及尾部序列长度可变方案设计等。相比于5G现有波形DFT-s-OFDM,该文提出的高频场景候选波形方案具有更高的频谱效率。仿真结果显示该候选波形方案具有峰均比低、相位噪声估计效果好和带外泄漏小等优点。

A candidate waveform scheme is designed to deal with the main problems in the high-frequency scenarios(>52.6 GHz)such as relatively large path loss,low efficiency of power amplifier and high phase noise.This candidate waveform scheme designs the enhanced fundamental symbol structure,the enhanced transmitter and the receiver structure,and tail sequence length variable schemes.Compared with the 5G waveform DFT-s-OFDM,the proposed candidate waveform scheme improves the spectrum efficiency.The simulation results show that the candidate waveform scheme has lower peak-to-average power ratio,better phase noise estimation and compensation effect,and lower out-of-band leakage.