Multiple Reconfigurable Intelligent Surface-Based Index Modulation With Optimal Combination

IF 4 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Systems Journal Pub Date : 2024-08-13 DOI:10.1109/JSYST.2024.3425866

Nadhira Azizah Suwanda;Hye Yeong Lee;Soo Young Shin

引用次数: 0

Abstract

This study proposes multiple reconfigurable intelligent surface (RIS)-based index modulation (IM), called MRB-IM, to improve channel capacity by activating one or more RISs within multiple RIS (MRIS). Generally, MRIS suffers from the secondary reflection that, in imperfect condition, can be considered as inter-RIS interference (IRI) within MRIS. On the other hand, the proposed MRB-IM has a larger capacity but less of an effect on IRI because it only happens between the active MRIS. The optimal combination algorithm is applied to select the best possible RIS combinations for the activation bits in IM. The simulation is done to support the analytical channel capacity based on mutual information and bit error rate. The results show that the proposed system offers higher capacity and a lower bit error rate compared to the conventional MRIS. The complexity of the system is mentioned as another benefit of MRB-IM.

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基于优化组合的多重可重构智能面基指数调制

本研究提出了基于多重可重构智能表面（RIS）的索引调制（IM），称为 MRB-IM，通过激活多重 RIS（MRIS）中的一个或多个 RIS 来提高信道容量。一般来说，MRIS 会受到二次反射的影响，在不完善的条件下，二次反射可被视为 MRIS 内的 RIS 间干扰（IRI）。另一方面，拟议的 MRB-IM 容量更大，但对 IRI 的影响较小，因为 IRI 只发生在活动的 MRIS 之间。优化组合算法用于为 IM 中的激活比特选择最佳可能的 RIS 组合。仿真支持基于互信息和误码率的分析信道容量。结果表明，与传统的 MRIS 相比，提议的系统具有更高的容量和更低的误码率。系统的复杂性是 MRB-IM 的另一个优点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Systems Journal 工程技术-电信学

CiteScore

9.80

自引率

6.80%

发文量

572

审稿时长

4.9 months

期刊介绍： This publication provides a systems-level, focused forum for application-oriented manuscripts that address complex systems and system-of-systems of national and global significance. It intends to encourage and facilitate cooperation and interaction among IEEE Societies with systems-level and systems engineering interest, and to attract non-IEEE contributors and readers from around the globe. Our IEEE Systems Council job is to address issues in new ways that are not solvable in the domains of the existing IEEE or other societies or global organizations. These problems do not fit within traditional hierarchical boundaries. For example, disaster response such as that triggered by Hurricane Katrina, tsunamis, or current volcanic eruptions is not solvable by pure engineering solutions. We need to think about changing and enlarging the paradigm to include systems issues.