**7. Conclusion**

Similar as Wi-Fi technology, Li-Fi can be used as a bi-directional wireless communication method. Li-Fi uses visible light for data transmission as the RF communication is used for Wi-Fi and cellular networks. Compared with Wi-Fi technology for data transfer the use of visible light makes Li-Fi technology 100 times faster with minimum cost. Li-Fi communication can be performed in low power mode and no external power source is required as it operates with the glowing LED light. Li-Fi finds major advantage in electromagnetic sensitive areas, such as hospitals, aircrafts, and nuclear power plants, as it does not cause any electromagnetic interference. The technical advantages of Li-Fi drive its market in various application sector such as retail, aerospace, defense and indoor networking. These technical advancement over LI-Fi communication finds a great demand in the market within next few years.

We have presented a Visible Light Communication (VLC) system designed with Li-Fi transmitter and receiver introduced its characteristics and capabilities for precise communication. The VLC system in traffic signal are modeled to communicate with the LED lights of the cars and the traffic information can be shared with the vehicle which further reduces the accident [15]. Li-fi is more suitable for high density coverage with in a confined region and the technology yields a high speed communication of 10 Gbps. Li-Fi technology will advance to replace Wi-Fi communication for high speed data transfer application in near future.

*Vehicle Collision Avoidance System Using Li-Fi DOI: http://dx.doi.org/10.5772/intechopen.98616*
