Statistical Channel and Resource Allocation Analysis for a Two-AP VLC System with Cell Overlap and Uniform User Distribution

In a two-AP visible light communication (VLC) system with overlapped coverage area, one can use resource partition schemes based on the user’s location to achieve interference avoidance. The VLC link’s channel characteristics are taken as a function of the position of the end users. In this paper, statistical channel gain models in different cell coverage areas are derived by using the transformation of probability density function of random location variables based on their structure information when users follow the Poisson Point Process (PPP) random model. They are further used to evaluate the performances of three proposed region-based resource allocation schemes. Simulation results demonstrate effectiveness of the proposed models and joint transmission (JT) scheme shows better outage probability and average spectrum efficiency (ASE).