通信学报2023，Vol.44Issue(12)：216-229,14.DOI:10.11959/j.issn.1000-436x.2023226
基于两分量广义加权分数傅里叶变换的大规模MIMO波形设计
Double-component combined generalized weighted fractional Fourier transform based waveform design for massive MIMO
摘要
Abstract
In order to overcome the drawback of conventional diversity technologies that sacrificing valuable communi-cation resources such as data rate or bandwidth in massive multiple input multiple output(MIMO)systems,a dou-ble-component combined generalized weighted fractional Fourier transform(DCGWFRFT)based waveform design method was proposed.The concept of computational diversity was introduced,and the diversity performance was im-proved via moderate computational resources without requiring channel state information at the transmitter.The principle of computational diversity of DCGWFRFT based waveform was firstly analyzed,and a DCGWFRFT based waveform design and transform process,which could be adopted combined with existing diversity methods,was then proposed ac-cording to the principle.Theoretical analysis proves that the proposed waveform design and transform process can per-fectly recover the original transmitted signal in noise-free case,and the power of error of proposed waveform is distrib-uted more evenly than that of untransformed waveform in noisy case.Simulation results show that the performance of DCGWFRFT based waveform has an advantage of at least 1.7 dB in bit signal-to-noise ratio compared with untrans-formed waveform when bit error rate is 10-3.关键词
大规模MIMO/分集/两分量广义加权分数傅里叶变换/波形设计Key words
massive MIMO/diversity/DCGWFRFT/waveform design分类
信息技术与安全科学引用本文复制引用
李行健,宋志群,李勇,刘丽哲,王斌,汪畅..基于两分量广义加权分数傅里叶变换的大规模MIMO波形设计[J].通信学报,2023,44(12):216-229,14.基金项目
中国博士后科学基金资助项目(No.2022M712974) （No.2022M712974）
通信网信息传输与分发技术重点实验室基金资助项目(No.FFX22641X022)The China Postdoctoral Science Foundation Project(No.2022M712974),The Science and Technology on Com-munication Networks Laboratory Foundation project(No.FFX22641X022) （No.FFX22641X022）
