Optical wireless test-bed system using a multiple source transmitter and a segmented receiver to achieve signal tracking

Farivar Parand; Grahame E. Faulkner; Dominic C. O'Brien; David J. Edwards

doi:10.1117/12.449803

27 November 2001 Optical wireless test-bed system using a multiple source transmitter and a segmented receiver to achieve signal tracking

Farivar Parand, Grahame E. Faulkner, Dominic C. O'Brien, David J. Edwards

Author Affiliations +

Proceedings Volume 4530, Optical Wireless Communications IV; (2001) https://doi.org/10.1117/12.449803
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States

Abstract

With ever increasing requirements for bandwidth in communications and the trend towards the use of wireless technologies for increased mobility and convenience, greater interest is being directed towards optical wireless as a potential alternative to radio for some applications. The use of a transmitting antenna consisting of more than one optical source can mitigate some of the disadvantages of both line-of-sight and diffuse systems. Each source illuminates a coverage cell, providing greater coverage area than a line-of-sight system and no requirement for pointing, whilst also retaining the potential for higher bandwidths than a diffuse system. The use of a segmented receiver, on the other hand, results in a reduced photodiode capacitance penalty and, due to the possibility of signal processing on the multiple received signals, the potential for improved gain. In this paper we present a test-bed system that incorporates features of both the diffuse and line-of-sight architectures by employing multi-element transmitter and receiver structures. We demonstrate that the combination of such a transmitter and receiver, in conjunction with some focusing optics can provide information about direction of signal arrival, allowing tracking of the optical signal.

Citation Download Citation

Farivar Parand, Grahame E. Faulkner, Dominic C. O'Brien, and David J. Edwards "Optical wireless test-bed system using a multiple source transmitter and a segmented receiver to achieve signal tracking", Proc. SPIE 4530, Optical Wireless Communications IV, (27 November 2001); https://doi.org/10.1117/12.449803

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available