Space-frequency-mode multi-dimensional hybrid modulation for vortex wave MIMO-OFDM systems

被引：1
|
作者：
Li, Chuanqing [1 ]
Liu, Yi [1 ,2 ]
Sun, Fugang [1 ]
Ma, Teng [1 ]
Wan, Weidong [2 ]
Liu, Yi [1 ,2 ]
机构：
[1] Syst Engn Res Inst, Surface Syst Dept, Beijing, Peoples R China
[2] Xidian Univ, State Key Lab Integrated Serv Network, Xian, Shaanxi, Peoples R China
来源：
IET COMMUNICATIONS | 2021年 / 15卷 / 07期
关键词：
ORBITAL ANGULAR-MOMENTUM;
D O I：
10.1049/cmu2.12130
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
By exploiting a dimension called orbital angular momentum (OAM) modes, a new modulation scheme referred to as multi-dimensional space-frequency-mode hybrid modulation (SFMHM) is proposed in this paper, which aims to further improve the MIMO-OFDM system's spectrum efficiency and meet the demand of the future wireless communication networks. The key idea of SFMHM is to map a block of information bits to two information-carrying units: (1) symbols chosen from a constellation diagram, (2) the indices of a subset chosen from all combinations of antennas, OAM modes, and subcarriers. A mapping method with low complexity for SFMHM is presented in this paper, which can reduce the computational complexity of the transmitter significantly. Simulation results show that, in LOS channels, SFMHM systems can achieve better performance compared with traditional MIMO-OFDM systems.
引用
收藏
页码：924 / 934
页数：11
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