无线电通信技术2026，Vol.52Issue(1)：30-35,6.DOI:10.3969/j.issn.1003-3114.2026.01.003
可重构智能表面的交替模式选择索引调制传输技术
Design and Performance Analysis of Alternate Mode Selection Index Modulation Scheme for Reconfigurable Intelligent Surfaces
摘要
Abstract
Reconfigurable Intelligent Surfaces(RIS)intelligently manipulate electromagnetic wave propagation paths in physical space,significantly enhancing signal coverage capability and communication efficiency.This approach is particularly effective in complex communications with obstacle-blocked areas for signal blind spot mitigation.Existing RIS-integrated Index Modulation(IM)schemes re-main constrained by the inherent transmission modes of physical antennas or RIS elements,posing challenges to the seamless RIS-IM in-tegration.To address this issue,this paper proposes an RIS Alternate Mode Selection Index(RIS-AMSI)scheme.By dynamically switching the activation modes of RIS elements across two consecutive time slots and embedding the mode alternation sequence as addi-tional index information in the transmission process,the scheme leverages RIS's channel gain characteristics to design a low-complexity greedy detector for efficient information demodulation.Theoretical analysis and simulation experiments validate the accuracy of the pro-posed Bit Error Rate(BER)performance characterization.Results demonstrate that RIS-AMSI achieves comparable spectral efficiency to benchmark schemes while substantially reducing the BER,offering a practical and feasible solution for RIS-IM convergence.关键词
可重构智能表面/索引调制/误码率分析Key words
RIS/IM/BER analysis分类
信息技术与安全科学引用本文复制引用
杨攀,曾灿良,曹文涛,张挺,陈平平..可重构智能表面的交替模式选择索引调制传输技术[J].无线电通信技术,2026,52(1):30-35,6.基金项目
国家自然科学基金面上项目(61871132)General Project of National Natural Science Foundation of China(61871132) （61871132）
