Optimal Design of Wireless Visible Light Communication Network with the Aim of Minimizing the Outage Probability at the Location of the Mobile Receiver

The subject of this paper is to determine the optimal placement for deploying light emitting diodes (LEDs) in order to implement the visible light communication (VLC) network in an indoor environment. More precisely, determining the optimal placement consists of installing the optical transmitter in a place of the ceiling for an indoor environment in a building to minimize the outage probability in the location of the moving receiver. Here, we consider the scenario of a LiFi-based wireless communication link in which several LEDs are placed on the ceiling of a room and communicate with a mobile receiver in a high data rate communication network. First, we derive the closed-form expression for the outage probability at the user's location. Then, we study the effect of parameters such as power and height of the ceiling on the outage probability in the desired location. Finally, we design the optimal placement of the LEDs by minimizing the outage probability at the receiver. Numerical results show that the optimization of the transmitter location reduces significantly the outage probability compared to the non-optimal choices of LEDs placement.