NDLI: High-speed wireless infrared links with an adaptive multibeam clustering method and angle diversity detection

Content Provider	IEEE Xplore Digital Library
Author	Alresheedi, M.T. Elmirghani, J.M.H.
Copyright Year	2012
Description	Author affiliation: School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK (Alresheedi, M.T.; Elmirghani, J.M.H.)
Abstract	In this paper, we propose a mobile optical wireless (OW) system that employs a beam delay and a power adaptation multibeam clustering method in conjunction with an angle diversity receiver (BDPA-BCM). Our ultimate goal is to improve the signal to noise ratio (SNR), reduce the delay spread and increase the received optical power under multipath dispersion, background noise and mobility. A significant reduction in delay spread by nearly a factor of fifteen and an enhanced SNR by almost 10 dB over a line strip multibeam system (LSMS) can be achieved when a beam delay and power adaptation line strip multibeam system (BDPA-LSMS) coupled with an angle diversity receiver is employed. At a bit rate of 50 Mbit/s, the proposed BDPA-BCM offers about a 10 dB SNR gain over a BDPA-LSMS. A further improvement in the delay spread of the BDPA-BCM by a factor of eight compared with the BDPA-LSMS is achieved. The improvements in the delay spread and the SNR enable the BDPA-BCM to operate at higher data rates of 2.5 Gb/s and 5 Gb/s. Our simulation results show that the modified BDPA-BCM at a bit rate of 5 Gb/s achieves about 16 dB SNR for the worst communication path under the presence of background noise and mobility while achieving a BER below $10^{−9}.$
Starting Page	1
Ending Page	8
File Size	175011
Page Count	8
File Format	PDF
ISBN	9781467322287
ISSN	21612064
e-ISBN	9781467322294
e-ISBN	9781467322270
DOI	10.1109/ICTON.2012.6253886
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-02
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Signal to noise ratio Optical transmitters Optical receivers diversity detection gigabit mobile optical wireless systems beam delay and beam power adaptation beam clustering
Content Type	Text
Resource Type	Article

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