摘要
为解决能量分配矩阵预编特(EA-MP-FTN)带宽扩展问题,根据EA-MP-FTN的受限容量最大化并增加带宽约束,提出改进的能量分配.推导基于快速傅里叶变换(FFT)的EA-MP-FTN容量和频谱效率(SE).用FFT替代奇异值分解(SVD)降低计算复杂度.改进的EA-MP-FTN解决了带宽扩展问题,与THP(Tomlinson-Harashima预编码)-FTN相比获得了近1.1 dB的增益.
To solve the bandwidth expansion problem of energy allocation matrix precoding fast than Nyquist(EA-MP-FTN),an improved energy allocation was proposed according to the maximization of the limited capacity of EA-MP-FTN and the increase of bandwidth constraints.The EA-MP-FTN capacity and spectral efficiency(SE) were derived based on fast Fourier transform(FFT).FFT was used to replace singular value decomposition(SVD) to reduce the computational complexity.The improved EA-MP-FTN could solve the problem of bandwidth expansion and obtain a gain of nearly 1.1 dB compared with THP(Tomlinson Harashima precoding)-FTN.
作者
车慧
白勇
CHE Hui;BAI Yong(Postdoctoral Research Station,Ruijie Networks Co.Ltd.Fuzhou 350002,China;School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Information and Communication Engineering,Hainan University,Haikou 570228,China;State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan University,Haikou 570228,China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第1期20-25,共6页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(61561017,61961014)。
关键词
矩阵预编码
超奈奎斯特
能量分配
带宽约束
能量约束
matrix precoding
faster-than-Nyquist
energy allocation
bandwidth constraint
energy constraint
