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A novel bandwidth and power allocation scheme for power efficient hybrid RF/VLC indoor systems

机译：功率高效混合RF / VLC室内系统的新型带宽和功率分配方案

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Indoor Visible Light Communication (VLC) uses the illumination power of indoor LED luminaries for data transmission. Deploying RF communication alongside VLC is preferable as it improves the coverage and the reliability of the system. This paper studies the power efficiency of hybrid RF/VLC indoor systems. The power efficiency is defined as the system's total rate per unit power consumed, and the paper considers a hybrid system consisting of a single RF access point and multiple interfering VLC access points. We develop a joint power and bandwidth allocation scheme that iteratively optimizes the power and bandwidth allocated by the access points to their associated users to maximize the system's power efficiency. We compare the power efficiency of the hybrid system for different layouts of the VLC access points, and we show through simulations that deploying VLC alongside RF communication improves the power efficiency of the hybrid system, especially when users receive low RF signal due to walls. (C) 2018 Elsevier B.V. All rights reserved.
机译：室内可见光通信（VLC）使用室内LED照明器的照明功率进行数据传输。与VLC一起部署RF通信是可取的，因为它可以提高系统的覆盖范围和可靠性。本文研究了混合RF / VLC室内系统的功率效率。功率效率定义为系统每单位功率消耗的总速率，本文考虑了由单个RF接入点和多个干扰VLC接入点组成的混合系统。我们开发了一种联合的功率和带宽分配方案，该方案可迭代地优化接入点分配给其关联用户的功率和带宽，以最大程度地提高系统的功率效率。我们比较了VLC接入点不同布局的混合系统的电源效率，并通过仿真表明，将VLC与RF通信一起部署可提高混合系统的电源效率，尤其是当用户由于墙壁而接收到低RF信号时。 （C）2018 Elsevier B.V.保留所有权利。

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