Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance

The challenge of creating a new environment of links for wireless infrared and optical local area networks CLANs) is driving new innovations in the design of optical transceivers. This thesis is concemed with a systematic approach to the design of receivers for indoor optical wireless communic...

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Main Author:	Abdullah, Mohammad Faiz Liew
Format:	Thesis
Language:	English
Published:	2006
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.uthm.edu.my/7669/1/24p%20MOHAMMAD%20FAIZ%20LIEW%20ABDULLAH.pdf
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id	my-uthm-ep.7669
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spelling	my-uthm-ep.76692022-09-08T02:40:56Z Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance 2006-12 Abdullah, Mohammad Faiz Liew TK Electrical engineering. Electronics Nuclear engineering TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television The challenge of creating a new environment of links for wireless infrared and optical local area networks CLANs) is driving new innovations in the design of optical transceivers. This thesis is concemed with a systematic approach to the design of receivers for indoor optical wireless communication. In particular, it is concemed with how to offer bandwidth adjustment capability in a receiver according to the dynamic service quality of the incoming signals. Another part of the discussion of the thesis is how one can properly choose the front-end preamplifier and biasing circuitry for the photodetector. Also, comparison is made between different types of amplifier, and the methods of bandwidth enhancement. The designs of six different teclmiques of integrating transimpedance amplifiers, with photo detectors to adapt an adjustable bandwidth control receiver are discussed. The proposed topologies provide an adjustable range of bandwidths for different frequency ranges, typically between 52Hz to 115MHz. The composite technique designs were used to incorporate into a system with an automatic gain control to study its effect, on an optical wireless receiver which had bandwidth adjustment and automatic gain adjustment. Theoretical analysis of noise perfom1ance for all the designed circuits is also presented. The theory and design of obstacles of indoor optical wireless receiver delivery, in addition to techniques for mitigating these effects, are discussed. This shows that infrared is a viable altemative to radio for certain applications. 2006-12 Thesis http://eprints.uthm.edu.my/7669/ http://eprints.uthm.edu.my/7669/1/24p%20MOHAMMAD%20FAIZ%20LIEW%20ABDULLAH.pdf text en public phd doctoral University of Warwick School of Engineering, Division of Electrical and Electronic Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering Abdullah, Mohammad Faiz Liew Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
description	The challenge of creating a new environment of links for wireless infrared and optical local area networks CLANs) is driving new innovations in the design of optical transceivers. This thesis is concemed with a systematic approach to the design of receivers for indoor optical wireless communication. In particular, it is concemed with how to offer bandwidth adjustment capability in a receiver according to the dynamic service quality of the incoming signals. Another part of the discussion of the thesis is how one can properly choose the front-end preamplifier and biasing circuitry for the photodetector. Also, comparison is made between different types of amplifier, and the methods of bandwidth enhancement. The designs of six different teclmiques of integrating transimpedance amplifiers, with photo detectors to adapt an adjustable bandwidth control receiver are discussed. The proposed topologies provide an adjustable range of bandwidths for different frequency ranges, typically between 52Hz to 115MHz. The composite technique designs were used to incorporate into a system with an automatic gain control to study its effect, on an optical wireless receiver which had bandwidth adjustment and automatic gain adjustment. Theoretical analysis of noise perfom1ance for all the designed circuits is also presented. The theory and design of obstacles of indoor optical wireless receiver delivery, in addition to techniques for mitigating these effects, are discussed. This shows that infrared is a viable altemative to radio for certain applications.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abdullah, Mohammad Faiz Liew
author_facet	Abdullah, Mohammad Faiz Liew
author_sort	Abdullah, Mohammad Faiz Liew
title	Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
title_short	Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
title_full	Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
title_fullStr	Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
title_full_unstemmed	Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
title_sort	techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance
granting_institution	University of Warwick
granting_department	School of Engineering, Division of Electrical and Electronic Engineering
publishDate	2006
url	http://eprints.uthm.edu.my/7669/1/24p%20MOHAMMAD%20FAIZ%20LIEW%20ABDULLAH.pdf
_version_	1747831177322954752

Techniques for signal to noise ratio adaptation in infared optical wireless for optimisation of receiver performance

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