please read http://seminarsprojects.net/Thread-Indoor-Positioning-and-Navigation-with-Camera-Phones

and http://seminarsprojects.net/Thread-Indoor-Positioning-and-Navigation-with-Camera-Phones--6020

for indoor positioning and navigations phones full information ....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 typically there is ....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 d ....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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to get information about the topic indoor geolocation related topic refer the page link bellow

http://seminarsprojects.net/Thread-indoor-geolocation ....etc

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

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ABSTRACT

This seminar Indoor Positioning and Navigation with Camera Phones discuss about low-cost indoor navigation system runs on off-the-shelf camera phones. The system uses built-in cameras to determine user location in real time by detecting unobtrusive fiduciary markers. The required infrastructure is limited to paper markers and static digital maps, and common devices are used, facilitating quick deployment in new environments. marker-based navigation is easier to use than conventional mobile digital maps. the users' location awareness ....etc

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the WiFi-based localization system has been intensely studied
and demonstrated, we will only focus on the optical wireless
transmission. The wavelength of the transmitted optical signal
is generated in a CO with a DFB laser at 1550.12 nm and it is
modulated using 12.5 Gb/s PRBS data in on-off-keying
(OOK) modulation format. The modulated signal is transmitted
to the access point via 5.6 km standard single mode fiber. Then
this signal passes through a lens to increase its divergence before
propagating i ....etc

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