Li-Fi, Complementary To Wi-Fi

Nowadays, Wireless-Fidelity(Wi-Fi) gives you the speed of 150 mbps according to standards of IEEE 802.11n, but not enough to fulfill the need of desired users over the network. In order to remove this drawback of Wi-Fi, a new technology is developed by Germen physicist Harald known as Li-Fi which provides transmission of data via LED bulb whose intensity varies in a much faster speed that it could not be able to be detected by the naked eye. According to Harald Haas, in this technology we can achieve the data rate much speedier than 10 mbps, which is very much greater than our LAN(Local Area Network). Li-Fi is very advantageous over Wi-Fi as it uses VLC by which we can utilize the maximum 60 GHz spectrum. Though this technology has numerous advantages over Wi-Fi but on other side it also has few drawbacks like, range is very short as compared to Wi-Fi, if user want to transmit back then it is not possible etc. So due to these reasons Li-Fi will not entirely replace the Wi-Fi technology but it will compliments the Wi-Fi technology. So, both the technologies will work together for the maximum utilization of unlicensed 60 GHz spectrum.