期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2014
卷号：3
期号：4
页码：5436-5440
出版社：IJECS
摘要：Using Wi-Fi at homes, offices, colleges will now become a thing of the past. Now we have Li-fi, Light Fidelity, refersto wireless communication systems using light from light emitting diodes as a medium instead of traditional radiofrequencies, as in Wi-Fi. Li-fi is expected to be ten times cheaper than wi-fi. Li-Fi has the advantage of being able tobe used in electromagnetic sensitive areas such as in aircraft or nuclear power plants, without causing interference.However, the light waves cannot penetrate walls which makes Li-Fi more secure relative to Wi-Fi. The visible lightspectrum is 10,000 times larger than the entire radiofrequency spectrum. This paper will focus on Li-Fi technologyover Wi-Fi technology and challenges for the new VLC technology
