Subcarrier Interleaved Index Modulation Assisted OFDM Backscatter Communication

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-09-25 DOI:10.1109/LCOMM.2024.3467669

Dongdong Mou;Lixia Xiao;Miaoran Peng;Jiaxi Zhou;Guanghua Liu;Tao Jiang

引用次数: 0

Abstract

In this letter, we propose a subcarrier interleaved index modulation assisted orthogonal frequency division multiplexing (SIIM-OFDM) scheme for backscatter system. Specifically, the tag data vector, modulated with subcarrier index modulation (IM), is reconstructed leveraging the combined permutation and Hadamard matrix to mitigate the sensitivity of the inter-carrier interference. Then we derive the average bit error probability (ABEP) for the SIIM-OFDM backscattered signal and analyze the asymptotic detection performance bound of the proposed system. Furthermore, a hardware verification prototype is built to validate the proposed scheme. Experimental results and simulations validate that the proposed SIIM-OFDM backscatter achieves significant performance gains compared to the existing schemes.

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子载波交错索引调制辅助 OFDM 反向散射通信

在这封信中，我们提出了一种用于反向散射系统的子载波交错索引调制辅助正交频分复用（SIIM-OFDM）方案。具体来说，使用子载波索引调制（IM）调制的标签数据矢量利用组合排列和哈达玛矩阵进行重构，以减轻载波间干扰的敏感性。然后，我们推导出 SIIM-OFDM 后向散射信号的平均误码率 (ABEP)，并分析了拟议系统的渐进检测性能边界。此外，我们还构建了一个硬件验证原型来验证所提出的方案。实验结果和仿真验证了与现有方案相比，拟议的 SIIM-OFDM 后向散射实现了显著的性能提升。

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 Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.