Optical wireless communication using digital pulse interval modulation

Hayes, Andrew, Ghassemlooy, Zabih and Seed, N. L. (1999) Optical wireless communication using digital pulse interval modulation. In: Optical Wireless Communications. SPIE, pp. 61-69. ISBN 9780819429933

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Official URL: http://dx.doi.org/10.1117/12.338982

Abstract

This paper presents a study of digital pulse interval modulation (DPIM) as a candidate modulation scheme for optical wireless communications. DPIM code characteristics are discussed and the theoretical error probability performance of DPIM is analyzed in terms of the packet error rate. Performance comparisons are made with the more established techniques of on-off keying and pulse position modulation (PPM). We show that, for a simple threshold detector based receiver, DPIM can out perform PPM in terms of bandwidth efficiency and power efficiency, by taking advantage of its inherent variable symbol duration. Practical results are given for an experimental system in the form of eye diagrams. The use of a coding scheme with a non-uniform symbol duration does have implications for system design, which are discussed in the paper.

Item Type: Book Section
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 25 Apr 2014 14:19
Last Modified: 10 Aug 2015 11:39
URI: http://nrl.northumbria.ac.uk/id/eprint/16163

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