Performance of optical receivers using photodetectors with different fields of view in an indoor cellular communication system

Cuiwei He, Qian Wang, Md Abdullah Masum, Jean Armstrong

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)

Abstract

This paper describes the use of an optical receiver which has photodiodes (PDs) with two different fields of view (2FOV) in an indoor visible light communications (VLC) system. Data is transmitted using asymmetrically clipped optical OFDM (ACOOFDM) from white light emitting diodes (LEDs) which are also used for illumination. A cellular configuration is considered where each transmitter transmits data to receivers within its cell. A minimum mean square error (MMSE) combiner is used in the receiver to separate the wanted signal from the interference. Results are calculated for the signal to interference plus noise ratio (SINR) as a function of the transmitter and receiver characteristics and the relative positions of the transmitters and receiver. It is shown that for most receiver positions the 2FOV receiver outperforms a conventional receiver in which all of the PDs have the same FOV. It is also shown that increasing the number of PDs in the 2FOV receiver from two to eight gives negligible
improvement in performance. Bit error rate (BER) results are presented for a number of receiver positions showing that at some positions the 2FOV receiver gives a significant improvement in performance but that at others no improvement is observed.
Original languageEnglish
Title of host publication2015 International Telecommunication Networks and Applications Conference (ITNAC)
EditorsShui Yu, Longxiang Gao
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages77 - 82
Number of pages6
ISBN (Print)9781467393485
DOIs
Publication statusPublished - 2015
EventInternational Telecommunication Networks and Applications Conference 2015 - Univesrity of New South Wales (UNSW), Sydney, Australia
Duration: 18 Nov 201520 Nov 2015
Conference number: 25th
http://www.itnac.org.au/2015/2015.html (Conference website)
https://ieeexplore.ieee.org/xpl/conhome/7363403/proceeding (Proceedings)

Conference

ConferenceInternational Telecommunication Networks and Applications Conference 2015
Abbreviated titleITNAC 2015
CountryAustralia
CitySydney
Period18/11/1520/11/15
Internet address

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