Accuracy analysis and improvement of visible light positioning based on VLC system using orthogonal frequency division multiple access

Effective PAPR reduction in SCFDM‐based massive MIMO system using binary crow search algorithm for visible light communication towards 5G networks

“…Xu et al [15] presented a new system on VLC and visible light positioning (VLP) utilising OFDM. The developed system uses data sequence for estimating the receiver position and a transmission distance without fading the VLC throughput.…”

Indoor 3D visible light positioning system based on adaptive parameter particle swarm optimisation

“…If there is little or no ambient light, the dominant noise source is the receiver preamplifier noise, which is also signal‐independent and Gaussian. Without loss of generality, thermal and shot noise components with normal distribution are used in this paper [25], and the measurement noise is assumed to be AWGN, which obeys a zero‐mean independent identical Gaussian distribution, i.e., and are also widely adopted in papers such as [11, 21, 24, 33, 34].…”

“…Without loss of generality, we also suppose φ = [0, 0, 1] T , i.e. cosΨ i = cos γ i = h i / d i [11, 33, 34], h i is the vertical distance from the PD to the i th LED. M LEDs are arranged evenly in the positioning area with a size of 400 cm × 400 cm × 300 cm.…”

Power-Efficient Positioning for Visible Light Systems via Chance Constrained Optimization

“…Our main objective in this article is to design power efficient VLP systems by minimizing the total power consumption in LED transmitters while maintaining a desired level of localization performance under practical constraints. Although power and resource allocation has been investigated extensively for VLC systems (e.g., [10]- [16]), it has been considered only in a few studies for VLP systems [17]- [20]. In [17], an orthogonal frequency division multiple access (OFDMA) based visible light system with both communication and positioning capabilities is considered, and a power allocation algorithm is proposed to reduce the positioning error.…”