Abstract:
Knowledge of ambient optical noise is essential for designers of free space optical links, for resilient designs. In this paper, a complete experimental
characterisation of the most common ambient optical radiation is presented. The study includes Tungsten filamen t sources, low and high frequency
fluorescent lights, IR headphones, TV remote controls, and daylight. Means to reduce their influence on the performance of the links are also given.
The results are valuable towards setting a standard way of comparing wireless IR links, ....etc

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White LED (Light Emitting Diode) is expected to be the next generation of lamps due to its properties such as high brightness, reliability, low consumption and long life span. In this article , the proposed system for indoor optical wireless duplex channel communication system, as an access to the Internet, utilizing both white LED lights and infrared LEDs is described. The illuminance and power distribution, impulse response, and modulation techniques has been studied in this article. LED lights and receivers design strategies has also been ....etc

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The advantages of smart note taker over smart quill?
which is better either smart note taker or smart quill? ....etc

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pooja raju
Ppt of OPTICAL OFDM FOR HIGH SPEED WIRELESS OPTICAL COMMUNICATION
how to prepare ppt on this seminar topic?
....etc

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yes.the ieee paper is indoore optical wireless communication-potential and state-of-the-art. ....etc

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transmitter circuit and receiver circuit diagram for optical communication based counter. and documentation ....etc

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transmitter circuit diagram, receiver circuit diagram. and documentation. ....etc

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http://freespaceopticsfreespaceoptics/images/flightstrata_photo.jpg
Free space optical communications is a line-of-sight (LOS) technology that transmits a modulated beam of visible or infrared light through the atmosphere for broadband communications. In a manner similar to fiber optical communications, free space optics uses a light emitting diode (LED) or laser (light amplification by stimulated emission of radiation) point source for data transmission. However, in free space optics, an energy beam is collimated and transmitted t ....etc

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Using Ceiling Bounce Model for High Speed Indoor Diffuse Optical Wireless Networks

By
M.P.Prabakaran
Supervisor
Dr. A. Sivasubramanian
HoD/ECE,
St.Joseph’s College of Engineering


Objectives


To investigate and improve the Performance of High Speed
Indoor Diffuse Optical Wireless Networks by Using Ceiling
Bounce modal.

To investigate both Ambient light Noise and Multipath
Dispersion.

To Calculate impulse response of the Ceiling bounce Modal.

To Calcul ....etc

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Abstract.
Precise positioning in indoor environments faces different challenges than the outdoor ones. While indoor environments are limited in size to rooms and buildings, outdoor positioning capabilities require regional or even global coverage. Secondly, the difficulty of receipting satellite signals indoors has triggered the development of high sensitive and AGNSS receivers “ with many issues remaining unsolved. Thirdly, the accuracy requirements are dissimilar between indoor and outdoor environments “ typic ....etc

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