Which is the most power-efficient modulation format in optical links?
Artikel i vetenskaplig tidskrift, 2009

By exploiting the electromagnetic wave's four-dimensional signal space, we find that for the additive white Gaussian noise channel, the modulation format with best sensitivity to be an 8-level format with 1.76 dB asymptotic gain over BPSK, for uncoded optical transmission with coherent detection. Low-complexity modulators are presented for the format, as well as an interpretation in terms of quantum-limited sensitivity.

Författare

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Erik Agrell

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

Optics Express

1094-4087 (ISSN)

Vol. 17 13 10814-10819

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Elektroteknik och elektronik

DOI

10.1364/OE.17.010814

Mer information

Senast uppdaterat

2018-03-29