Abstract
In this paper, we propose a theoretical framework for analyzing the performance of the short-packet communication (SPC) in a downlink non-orthogonal multiple access (NOMA) visible light communication (VLC) system in which one light emitting diode (LED) communicates with two single-photodiode users. The analytical expression of the block error rate (BLER) is approximated by Gaussian-Chebyshev quadrature method, based on which the reliability, throughput, and latency expressions are deduced. Further, we jointly optimize power allocation coefficients and transmission rates to maximize sum throughput of the SPC-NOMA VLC system. The numerical results show that (i) our proposed system well satisfies the stringent requirements of the ultra-reliable and low latency communication (URLLC) at signal-to-noise ratio (SNR) larger than 130 dB; (ii) SPC-NOMA VLC systems outperform SPC- orthogonal multiple access (OMA) VLC systems in terms of reliability, latency, and throughput; (iii) the impacts of block-length, power allocation coefficients, transmission rates, and LED semi-angle are examined.
Highlights
Driven by the ever-increasing penetration of the digitization era in the globe, wireless data traffic with high network capacity demand is expected to substantially increase [1]
shortpacket communication (SPC) and long-packet communication (LPC) in non-orthogonal multiple access (NOMA) visible light communication (VLC) systems are evaluated in terms of reliability and latency
The benefits of the SPC in terms of reliability and latency are shown in the comparison between SPC and LPC in NOMA VLC systems
Summary
Driven by the ever-increasing penetration of the digitization era in the globe, wireless data traffic with high network capacity demand is expected to substantially increase [1]. The aforementioned works have mainly discussed on the achievable rate of the NOMA VLC systems while the reliability and latency were not mentioned [6], [27], [29] This brings a new exploration of a coupled SPC-NOMA scheme for the VLC system of multiple users and URLLC. This paper is the first study on the SPC-NOMA VLC with the analyses for the reliability, latency, and throughput. We, for the first time, propose the SPC in NOMA VLC systems to increase reliability and reduce latency. SPC and long-packet communication (LPC) in NOMA VLC systems are evaluated in terms of reliability and latency. The performance of the SPC-NOMA VLC system and SPC-OMA VLC system is analyzed in terms of reliability, latency, and throughput.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
