Optimizing Optical Attocells Positioning of Indoor Visible Light Communication System

Abstract

Visible light communication (VLC), which is a prominent emerging solution that complements the radio frequency (RF) technology, exhibits the potential to meet the demands of fifth-generation (5G) and beyond technologies. The random movement of mobile terminals in the indoor environment is a challenge in the VLC system. The model of optical attocells has a critical role in the uniform distribution and the quality of communication links in terms of received power and signal-to-noise ratio (SNR). As such, the optical attocells positions were optimized in this study with a developed try and error (TE) algorithm. The optimized optical attocells were examined and compared with previous models. This novel approach had successfully increased minimum received power from −1.29 to −0.225 dBm, along with enhanced SNR performance by 2.06 dB. The bit error rate (BER) was reduced to 4.42 × 10 −8 and 6.63 × 10 −14 by utilizing OOK-NRZ and BPSK modulation techniques, respectively. The optimized attocells positions displayed better uniform distribution, as both received power and SNR performances improved by 0.45 and 0.026, respectively. As the results of the proposed model are optimal, it is suitable for standard office and room model applications.

Design and optimization of the annular light source layout of the indoor visible light communication system

“…The results indicate that the scheme is feasible and the bit error rate is effectively reduced. Gismalla et al 17 . suggested optimizing the position of the optical transmitting unit using a try-and-error algorithm, resulting in significant improvements in received optical power.…”

Multi-users different rates visible light communication system for sixth-generation multimedia applications

“…The third problem relates to the constraints imposed by hardware design. The use of the visible light communication (VLC) for indoor communications provides a great speed for data transmission compared to the Wi-Fi modems, and this is very important for 6G mobile applications 12 . The implementation of optoelectronic integration using smaller modems and antennas is advised as a solution.…”

“…The use of the visible light communication (VLC) for indoor communications provides a great speed for data transmission compared to the Wi-Fi modems, and this is very important for 6G mobile applications. 12 The implementation of optoelectronic integration using smaller modems and antennas is advised as a solution. For multi-band frequency applications, there are many division multiplexing techniques that could be used, where the orthogonal frequency division multiplexing (OFDM) technique is the most appropriate choice due to the following advantages: [9][10][11] 1.…”