Joint optimization of bitrate selection and beamforming for holographic video cooperative streaming in VLC systems

Wen, Wanli and Peng, Xiaoling and Chen, Chen and Jia, Yunjian and Li, Jianqing and Haas, Harald (2023) Joint optimization of bitrate selection and beamforming for holographic video cooperative streaming in VLC systems. IEEE Communications Letters, 27 (10). pp. 2608-2612. ISSN 1089-7798 (https://doi.org/10.1109/lcomm.2023.3310974)

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Abstract

Holographic video streaming requires ultrahigh channel capacity, which might not be achieved by the existing radio frequency-based wireless networks. To address this challenge, we propose a holographic video cooperative streaming framework by integrating coordinated multipoint transmission and beamforming technologies in visible light communication (VLC) systems. This framework enables simultaneous video streaming with an ultrahigh data rate for multiple users in the VLC system, resulting in a more efficient and effective streaming process. By mathematically modeling the streaming framework, we formulate a joint bitrate selection and beamforming problem, aiming to maximize the average video quality experienced by all users. The problem is a non-convex mixed-integer problem and is NP-hard in general. We propose an algorithm with polynomial time complexity for the problem using an alternative optimization technique along with an appropriate rounding operation. Numerical results demonstrate the superiority of the proposed joint bitrate selection and beamforming solution over baselines.

  • Item type:Article
    ID code:86770
    Dates:
    Date
    Event
    1 October 2023
    Published
    1 September 2023
    Published Online
    1 September 2023
    Accepted
    Notes:© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:26 Sep 2023 13:01
    Last modified:20 Nov 2024 01:26
    URI:https://strathprints.strath.ac.uk/id/eprint/86770
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