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Proceedings Paper

Optical wireless communication using digital pulse interval modulation
Author(s): Andrew R. Hayes; Zabih F. Ghassemlooy; N. L. Seed
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Paper 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.

Paper Details

Date Published: 27 January 1999
PDF: 9 pages
Proc. SPIE 3532, Optical Wireless Communications, (27 January 1999); doi: 10.1117/12.338982
Show Author Affiliations
Andrew R. Hayes, Sheffield Hallam Univ. (United Kingdom)
Zabih F. Ghassemlooy, Sheffield Hallam Univ. (United Kingdom)
N. L. Seed, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 3532:
Optical Wireless Communications
Eric J. Korevaar, Editor(s)

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