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IEICE TRANSACTIONS on Electronics

A New Coding Scheme for Infrared ASK Communication Systems Which Have Zero-Spectrum Points within the Main-Lobe Region

Makoto NAKAMURA, Yoshihiro OHTANI, Yutaka IKEDA, Hiroshi UNO, Akihiro FUJII, Yoshiaki NEMOTO

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Summary :

In the present paper, a new coding scheme for infrared ASK communication systems--Pulse Sequence Modulation (PSM)--will be proposed, which uses a combination of pulse sequences so that it canattain zero-spectrum points at specific frequencies within the main-lobe region. The interference to the other IR systems was a problem of the conventional infrared ASK communication systems. The proposed PSM coding scheme reduces the interference by decreasing the emission at specific frequencies, and helps multiple IR communication systems co-exist without deteriorating coding efficiency.

Publication
IEICE TRANSACTIONS on Electronics Vol.E82-C No.8 pp.1435-1445
Publication Date
1999/08/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category
Optical Systems and Technologies

Authors

Keyword

infrared,  ASK,  spectrum,  coding,  PSM,  co-existence