Fig. 1. Single-scatter model^[1]

Fig. 2. Data transfer rates for LOS and NLOS^[22]

Fig. 3. Multi-scatter model^[25]

Fig. 4. Path loss at different receiver off-axis angles^[26]

Fig. 5. Typical NLOS communication link^[1]

Fig. 6. NLOS link model^[1]

Fig. 7. UVC NLOS with height difference^[1]

Fig. 8. Received power at different values of θ₁ and θ₂^[30]

Fig. 9. Impulse response after multiple scattering^[26]

Fig. 10. Transmit and receive elevation angles and pulse broadening^[31]

Fig. 11. Transmittance of different visibility and transmission distance^[36]

Fig. 12. The topology of the UVC network^[1]

Fig. 13. The trilateration positioning algorithm^[30]

Fig. 14. Triangulation schematic^[30]

Fig. 15. Node chain topology (exposed terminals)^[43]

Fig. 16. Node chained topology throughput^[44]

Fig. 17. Node chain topology fairness index^[44]

Fig. 18. UV sensor node model^[50]

Fig. 19. Comparison of average communication energy consumption^[51]