SDN-FSO信道下的室内海量MIMO-VLC预编码

IF 2.2 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Physical Communication Pub Date : 2025-09-22 DOI:10.1016/j.phycom.2025.102847

Ren-hai Feng , Yi-da Wei , Wajid Khan , Sheng Xie , Li-ping Luo , Muhammad Zain Yousaf

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引用次数: 0

摘要

研究了一种针对自由空间光信道中信号相关噪声的预编码算法。为了提高可见光通信（VLC）的频谱效率，我们采用了非正交多址（NOMA）技术。此外，为了提高平均信噪比，研究了传输预编码与调光预编码的关系。然而，这种预编码目标是一种分数阶加法问题形式，传统的优化方法无法解决。因此，我们使用基于二次变换的方法来解决这个问题。仿真结果表明，提出的联合优化方法不仅在不完全连续干扰消除（SIC）下收敛速度更快，而且信噪比也有显著提高。

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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Indoor massive MIMO-VLC precoding under SDN-FSO channel

This paper focuses on developing a precoding algorithm for the signal-dependent noise in free space optical (SDN-FSO) channel. To increase spectral efficiency in visible light communication (VLC), we adopt non-orthogonal multiple access (NOMA). Additionally, to enhance the average signal-to-interference-plus-noise ratio (SINR), relationship between transmission precoding and dimming precoding is investigated. However, such precoding objective is a fractional addition problem form which cannot be solved by traditional optimization methods. Therefore, we use a quadratic transformation-based method to solve this problem. Simulation results show that the proposed joint optimization method not only converges faster under imperfect successive interference cancellation (SIC) but also achieves significant SINR improvements.

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来源期刊

Physical Communication ENGINEERING, ELECTRICAL & ELECTRONICTELECO-TELECOMMUNICATIONS

CiteScore

5.00

自引率

9.10%

发文量

212

审稿时长

55 days

期刊介绍： PHYCOM: Physical Communication is an international and archival journal providing complete coverage of all topics of interest to those involved in all aspects of physical layer communications. Theoretical research contributions presenting new techniques, concepts or analyses, applied contributions reporting on experiences and experiments, and tutorials are published. Topics of interest include but are not limited to: Physical layer issues of Wireless Local Area Networks, WiMAX, Wireless Mesh Networks, Sensor and Ad Hoc Networks, PCS Systems; Radio access protocols and algorithms for the physical layer; Spread Spectrum Communications; Channel Modeling; Detection and Estimation; Modulation and Coding; Multiplexing and Carrier Techniques; Broadband Wireless Communications; Wireless Personal Communications; Multi-user Detection; Signal Separation and Interference rejection: Multimedia Communications over Wireless; DSP Applications to Wireless Systems; Experimental and Prototype Results; Multiple Access Techniques; Space-time Processing; Synchronization Techniques; Error Control Techniques; Cryptography; Software Radios; Tracking; Resource Allocation and Inference Management; Multi-rate and Multi-carrier Communications; Cross layer Design and Optimization; Propagation and Channel Characterization; OFDM Systems; MIMO Systems; Ultra-Wideband Communications; Cognitive Radio System Architectures; Platforms and Hardware Implementations for the Support of Cognitive, Radio Systems; Cognitive Radio Resource Management and Dynamic Spectrum Sharing.