Power efficient subcarrier modulation for intensity modulated channels
Artikel i vetenskaplig tidskrift, 2010

We compare formats for optical intensity modulation limited by thermal noise with the assumption of having ideal devices. At the same bitrate and bandwidth, a hitherto unknown format turns out to be more power efficient than known formats. This new modulation, which is a hybrid between on-off keying and phase-shift keying, belongs to the subcarrier modulation family. At asymptotically high signal-to-noise ratios, this hybrid scheme has a 1.2 dB average electrical power gain and 0.6 dB average optical power gain compared to OOK, while it has a 3.0 dB average electrical power gain and 2.1 dB average optical power gain compared to subcarrier QPSK.

Subcarrier

'Modulation

Direct detection

phase-shift keying'

Intensity Modulation

Författare

Johnny Karout

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Erik Agrell

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Optics Express

1094-4087 (ISSN)

Vol. 18 17 17913-17921

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Annan elektroteknik och elektronik

DOI

10.1364/OE.18.017913

Mer information

Senast uppdaterat

2018-03-29