Fig. 1. Indoor VLC system model

Fig. 2. Layout scheme

Fig. 3. LED array layout in 5 m×5 m×3 m room model

Fig. 4. Parameters distribution on receiving plane in 5 m×5 m×3 m room model. (a) Received illuminance; (b) received optical power

Fig. 5. Iterative curves of two algorithms

Fig. 6. LED array layout in different room models. (a) LED array layout in 3 m×3 m×3 m room model; (b) LED array layout in 7 m×7 m×3 m room model

Fig. 7. Received illuminance and received optical power distributions of different room models. (a) Received illuminance of 3 m×3 m×3 m room model; (b) received optical power of 3 m×3 m×3 m room model; (c) received illuminance of 7 m×7 m×3 m room model; (d) received optical power of 7 m×7 m×3 m room model

Fig. 8. Received optical power uniformity and received illumination uniformity of different room models

Table 1. Parameter settings of indoor VLC system

Table 2. LED parameter value range

Table 3. LED chip parameters in 5 m×5 m×3 m room model

Table 4. LED chip parameters of 3 m×3 m×3 m room model

Table 5. LED chip parameters of 7 m×7 m×3 m room model