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A Two-Dimensional Signal Space for Intensity-Modulated Channels

Johnny Karout (Institutionen för signaler och system, Kommunikationssystem) ; G. Kramer ; F. R. Kschischang ; Erik Agrell (Institutionen för signaler och system, Kommunikationssystem)
IEEE Communications Letters (1089-7798). Vol. 16 (2012), 9, p. 1361-1364.
[Artikel, refereegranskad vetenskaplig]

A two-dimensional signal space for intensity-modulated channels is presented. Modulation formats using this signal space are designed to minimize average and peak power for a fixed minimum distance between signal points. The uncoded, high-signal-to-noise ratio, power and spectral efficiencies are compared to those of the best known formats. The new formats are simpler than existing subcarrier formats, and are superior if the bandwidth is measured as 90% in-band power. Existing subcarrier formats are better if the bandwidth is measured as 99% in-band power.

Nyckelord: Direct detection, intensity modulation, noncoherent communications, power efficiency, spectral



Denna post skapades 2012-11-01. Senast ändrad 2016-08-19.
CPL Pubid: 165385

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Telekommunikation

Chalmers infrastruktur

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