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2026-08-14
Robust Resource Allocation for ORIS-Assisted VLC Networks under Random User Orientations
By
Zike Su,

    Dr. Zike Su

    Beijing Information Science and Technology University

    China

    Homepage

Wei Yang,

    Dr. Wei Yang

    School of Information and Communication Engineering

    Beijing Information Science and Technology University

    China

    Homepage

Xinru Wang,

    Dr. Xinru Wang

    School of Information and Communication Engineering, Institute of Intelligent Communication and Computing

    Beijing Information Science and Technology University

    China

    Homepage

Guangpeng Cheng

    Dr. Guangpeng Cheng

    School of Information and Communication Engineering, Institute of Intelligent Communication and Computing

    Beijing Information Science and Technology University

    China

    Homepage

Progress In Electromagnetics Research B, Vol. 118, 104-118, 2026
doi:10.2528/PIERB26060306 | Google Scholar

Abstract
Random user orientation in indoor visible light communication (VLC) severely degrades the line-of-sight (LoS) channel and limits the gains of non-orthogonal multiple access (NOMA). This paper proposes a robust resource-allocation framework for an optical reconfigurable intelligent surface (ORIS)-assisted multi-cell VLC downlink under random Eulerangle user rotations. We fit truncated probability density functions (PDFs) for the LoS link and four ORIS links received by side-facing photodetectors (PDs) using Monte Carlo samples, maximum-likelihood estimation, and Akaike information criterion (AIC)-based model selection. Using this statistical channelstate information (CSI), we formulate a joint optical-power, user-association, and ORIS-activation problem that maximizes a weighted statistical-CSI rate surrogate under optical-power, eyesafety, quality-of-service, and physical-association constraints. A block-coordinate-descent (BCD) algorithm updates the three variable blocks using fractional programming, successive convex approximation, and semidefinite relaxation, respectively. Simulation results show gains of up to 14% and 56% over the proportional-allocation optimization (PAO) and time-division multiple-access (TDMA) baselines, respectively, at a signal-tonoise ratio (SNR) of 35 dB for the tested sitting-user orientation range σθ ≤ 10˚.
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Citation
Zike Su, Wei Yang, Xinru Wang, and Guangpeng Cheng, "Robust Resource Allocation for ORIS-Assisted VLC Networks under Random User Orientations," Progress In Electromagnetics Research B, Vol. 118, 104-118, 2026.
doi:10.2528/PIERB26060306
References

1. Yoshida, Kou, Cheng Chen, Harald Haas, Graham A. Turnbull, and Ifor D. W. Samuel, "RGB-single-chip OLEDs for high-speed visible-light communication by wavelength-division multiplexing," Advanced Science, Vol. 11, No. 47, 2404576, Dec. 2024.
doi:10.1002/advs.202404576        Google Scholar

2. Komine, T. and M. Nakagawa, "Fundamental analysis for visible-light communication system using LED lights," IEEE Transactions on Consumer Electronics, Vol. 50, No. 1, 100-107, Feb. 2004.
doi:10.1109/tce.2004.1277847        Google Scholar

3. Wu, Xiping, Mohammad Dehghani Soltani, Lai Zhou, Majid Safari, and Harald Haas, "Hybrid LiFi and WiFi networks: A survey," IEEE Communications Surveys & Tutorials, Vol. 23, No. 2, 1398-1420, 2021.
doi:10.1109/comst.2021.3058296        Google Scholar

4. Khan, Wali Ullah, Eva Lagunas, Asad Mahmood, Zain Ali, Muhammad Asif, Symeon Chatzinotas, and Björn Ottersten, "Integration of NOMA with reflecting intelligent surfaces: A multi-cell optimization with SIC decoding errors," IEEE Transactions on Green Communications and Networking, Vol. 7, No. 3, 1554-1565, Sep. 2023.
doi:10.1109/tgcn.2023.3263121        Google Scholar

5. Liu, Zehao, Fang Yang, Shiyuan Sun, Jian Song, and Zhu Han, "NOMA-based multi-cell VLC systems with optical intelligent reflecting surface: Resource allocation for energy efficiency maximization," IEEE Journal on Selected Areas in Communications, Vol. 43, No. 5, 1691-1705, May 2025.
doi:10.1109/jsac.2025.3543538        Google Scholar

6. Fang, Wen, Wen Chen, Qingqing Wu, Kunlun Wang, Shunqing Zhang, Qingwen Liu, and Jun Li, "Reconfigurable intelligent surface assisted free space optical information and power transfer," IEEE Internet of Things Journal, Vol. 11, No. 18, 30260-30277, Sep. 2024.
doi:10.1109/jiot.2024.3409815        Google Scholar

7. Xie, Ximing, Fang Fang, and Zhiguo Ding, "Joint optimization of beamforming, phase-shifting and power allocation in a multi-cluster IRS-NOMA network," IEEE Transactions on Vehicular Technology, Vol. 70, No. 8, 7705-7717, Aug. 2021.
doi:10.1109/tvt.2021.3090255        Google Scholar

8. Xie, Ziyi, Wenqiang Yi, Xuanli Wu, Yuanwei Liu, and Arumugam Nallanathan, "STAR-RIS aided NOMA in multicell networks: A general analytical framework with gamma distributed channel modeling," IEEE Transactions on Communications, Vol. 70, No. 8, 5629-5644, Aug. 2022.
doi:10.1109/tcomm.2022.3186409        Google Scholar

9. Soltani, Mohammad Dehghani, Ardimas Andi Purwita, Zhihong Zeng, Harald Haas, and Majid Safari, "Modeling the random orientation of mobile devices: Measurement, analysis and LiFi use case," IEEE Transactions on Communications, Vol. 67, No. 3, 2157-2172, Mar. 2019.
doi:10.1109/tcomm.2018.2882213        Google Scholar

10. Arfaoui, Mohamed Amine, Mohammad Dehghani Soltani, Iman Tavakkolnia, Ali Ghrayeb, Chadi M. Assi, Majid Safari, and Harald Haas, "Measurements-based channel models for indoor LiFi systems," IEEE Transactions on Wireless Communications, Vol. 20, No. 2, 827-842, Feb. 2021.
doi:10.1109/twc.2020.3028456        Google Scholar

11. Cai, Wenhao, Rang Liu, Ming Li, Yang Liu, Qingqing Wu, and Qian Liu, "IRS-assisted multicell multiband systems: Practical reflection model and joint beamforming design," IEEE Transactions on Communications, Vol. 70, No. 6, 3897-3911, Jun. 2022.
doi:10.1109/tcomm.2022.3168645        Google Scholar

12. Qian, Lei, Fangqian Wu, Di Wang, Nuo Huang, and Zhengyuan Xu, "Optical RIS-aided covert visible light communications," IEEE Transactions on Vehicular Technology, Vol. 74, No. 7, 11518-11523, 2025.
doi:10.1109/tvt.2025.3545851        Google Scholar

13. Mushfique, Sifat Ibne, Ahmad Alsharoa, and Murat Yuksel, "Optimization of SINR and illumination uniformity in multi-LED multi-datastream VLC networks," IEEE Transactions on Cognitive Communications and Networking, Vol. 6, No. 3, 1108-1121, Sep. 2020.
doi:10.1109/tccn.2020.2972310        Google Scholar

14. Shen, Kaiming and Wei Yu, "Fractional programming for communication systems --- Part I: Power control and beamforming," IEEE Transactions on Signal Processing, Vol. 66, No. 10, 2616-2630, May 2018.
doi:10.1109/tsp.2018.2812733        Google Scholar

15. Shen, Kaiming and Wei Yu, "Fractional programming for communication systems --- Part II: Uplink scheduling via matching," IEEE Transactions on Signal Processing, Vol. 66, No. 10, 2631-2644, May 2018.
doi:10.1109/tsp.2018.2812748        Google Scholar

16. Yang, Yang, Yujie Yang, Mingzhe Chen, Chunyan Feng, Hailun Xia, Shuguang Cui, and H. Vincent Poor, "Joint LED selection and precoding optimization for multiple-user multiple-cell VLC systems," IEEE Internet of Things Journal, Vol. 9, No. 8, 6003-6017, Apr. 2022.
doi:10.1109/jiot.2021.3109135        Google Scholar

17. Mmbaga, Paul Fahamuel, John Thompson, and Harald Haas, "Performance analysis of indoor diffuse VLC MIMO channels using angular diversity detectors," Journal of Lightwave Technology, Vol. 34, No. 4, 1254-1266, Feb. 2016.
doi:10.1109/jlt.2015.2502782        Google Scholar

18. Singh, Anand, Haythem Bany Salameh, Moussa Ayyash, and Hany Elgala, "Performance analysis of OIRS-aided indoor VLC systems under dynamic human blockages and random UE orientation," IEEE Internet of Things Journal, Vol. 11, No. 20, 33110-33119, Oct. 2024.
doi:10.1109/jiot.2024.3423753        Google Scholar

19. Abdelhady, Amr M., Ahmed K. Sultan Salem, Osama Amin, Basem Shihada, and Mohamed-Slim Alouini, "Visible light communications via intelligent reflecting surfaces: Metasurfaces vs mirror arrays," IEEE Open Journal of the Communications Society, Vol. 2, 1-20, 2020.
doi:10.1109/ojcoms.2020.3041930        Google Scholar

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