论文标题
6G无线网络中指数调制的智能时变元面收发器
Intelligent Time-Varying Metasurface Transceiver for Index Modulation in 6G Wireless Networks
论文作者
论文摘要
索引调制（IM）是即将到来的第六代（6G）无线通信网络的候选技术之一。在本文中，我们提出了一种时空调制的可重新配置智能跨表面（RI-MTS），该智能metasurface（RI-MTS）被配置为在多输入多输出（MIMO）阵列配置中实现各种频域IM技术。与先前的作品不同，主要分析了一般RI-MTS IM的信号理论，我们提出了新颖的符合特定IMS的电磁兼容设计，例如子载体索引调制（SIM）和MIMO正交频域调制IM（MIMO OFDM-IM）。我们的全波电磁模拟和分析计算确定了这些收发器改变反射阶段并为IM生成频率谐波的能力。我们对位错误率的实验表明，基于RI-MTS的SIM和MIMO-OFDM-IM低于常规MIMO-OFDM。
Index modulation (IM) is one of the candidate technologies for the upcoming sixth generation (6G) wireless communications networks. In this paper, we propose a space-time-modulated reconfigurable intelligent metasurface (RI-MTS) that is configured to implement various frequency-domain IM techniques in a multiple-input multiple-output (MIMO) array configuration. Unlike prior works which mostly analyze signal theory of general RI-MTS IM, we present novel electromagnetics-compliant designs of specific IMs such as sub-carrier index modulation (SIM) and MIMO orthogonal frequency-domain modulation IM (MIMO-OFDM-IM). Our full-wave electromagnetic simulations and analytical computations establish the programmable ability of these transceivers to vary the reflection phase and generate frequency harmonics for IM. Our experiments for bit error rate show that RI-MTS-based SIM and MIMO-OFDM-IM are lower than conventional MIMO-OFDM.
