Showing papers on "Li-Fi published in 2011"
26 Jun 2011
TL;DR: In this paper, the main experimental results achieved by the research group in the area of high-speed wireless visible light communication (VLC) were reviewed and compared using off-the-shelf optical components.
Abstract: This paper reviews the main experimental results achieved by our research group in the area of high-speed wireless visible light communication (VLC). Depending on the modulation complexity and receiver sensitivity, various links operating at rates in the range of 10 – 800 Mbit/s have been demonstrated using off-the-shelf optical components.
33 citations
TL;DR: In the ongoing search for better ways to transmit data, researchers have turned to a wireless approach that has been discussed for years: visible light communications.
Abstract: In the ongoing search for better ways to transmit data, researchers have turned to a wireless approach that has been discussed for years: visible light communications.
15 citations
TL;DR: In this reported work, the integration of radio-over-fibre and VLC technologies, into a hybrid system for indoor communication, is experimentally demonstrated and works effectively at typical office luminance level.
Abstract: Visible light communication (VLC) using white LEDs is emerging as a key technology for ubiquitous communication systems and has some advantages over the radio frequency counterpart, such as high bandwidth density, licence-free spectrum, security, cost-effectiveness, low energy consumption and dual use (i.e. they simultaneously allow for both data communication and illumination). In this reported work, the integration of radio-over-fibre and VLC technologies, into a hybrid system for indoor communication, is experimentally demonstrated. The system, realised according to the IEEE 802.11g standard, works effectively at typical office luminance level.
11 citations
18 Sep 2011
TL;DR: In this article, the integration of Radio-over-Fiber and Visible Light Communication technologies into a hybrid system for indoor communication is demonstrated, realized according to the IEEE 802.11g standard.
Abstract: We experimentally demonstrate the integration of Radio-over-Fiber and Visible Light Communication technologies, into a hybrid system for indoor communication. The system, realized according to IEEE 802.11g standard, works effectively at typical office luminance level.
8 citations
24 Oct 2011
TL;DR: A novel method for transmission of voice in real time so that the system can be used for both communication and illumination simultaneously simultaneously is discussed.
Abstract: In the current century there is an increased demand for broad band wireless access for satisfying different customer needs. These applications requires large amount of frequency resources for its efficient implementation. Radio Frequency techniques, which dominate the current wireless technology, have the limitation of available frequency spectrum that can be used. Researchers identified Optical Wireless Communication as a potential candidate for solving this problem. Studies shows that white light can also be used as a carrier for wireless communication and this area is generally known as Visible Light Communication. The provision of voice data and visual communications to users by using optical wireless has become a key area of research and product development. This paper discusses a novel method for transmission of voice in real time so that the system can be used for both communication and illumination simultaneously. A prototype of the system is implemented successfully and performance analyses are carried out based on the experimental results. SNR and BER calculations for the designed system is done theoretically and simulated. The developed system is having the advantages of very high band width, no interference with adjacent rooms as walls are opaque, no license is required as it doesn’t cause electromagnetic interference and communication simultaneously with illumination.
1 citations