计算机应用与软件2024，Vol.41Issue(8)：121-125,5.DOI:10.3969/j.issn.1000-386x.2024.08.017
基于格基约减的水下成像光MIMO预编码研究
PRECODING FOR UNDERWATER OPTICAL LIGHT MIMO SYSTEM BASED ON LATTICE REDUCTION
摘要
Abstract
Aimed at the problem that the great spatial correlation between sub-channels of the underwater visible light MIMO system,a precoding algorithm based on lattice reduction is proposed.By transforming the MMSE detection operation at the receiving end into the precoding at the transmitter,the problem of noise amplifying of the traditional optical MIMO linear detection algorithm was solved,and the channel matrix with better orthogonality after the lattice reduction was used to obtain the precoding matrix,which reduced correlation between sub-channels of optical MIMO system.The simulation results show that,at the BER of 10-4,compared with the traditional optical MIMO detection algorithm,the system using the lattice reduction precoding algorithm obtains an SNR gain of 5 dB.关键词
水下光通信/成像多输入多输出系统/格基约减/预编码Key words
Underwater optical communication/Imaging MIMO system/Lattice reduction/Precoding分类
信息技术与安全科学引用本文复制引用
张依涛,陈晓,李燕龙,符杰林..基于格基约减的水下成像光MIMO预编码研究[J].计算机应用与软件,2024,41(8):121-125,5.基金项目
国家自然科学基金项目(61761014) （61761014）
广西自然科学基金项目(2018GXNSFBA281131) （2018GXNSFBA281131）
认知无线电与信息处理教育部重点实验室主任基金项目(CRKL190109). （CRKL190109）
