A Two-Dimensional Signal Space for Intensity-Modulated Channels
Journal article, 2012

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.

Direct detection

spectral

noncoherent communications

power efficiency

intensity modulation

Author

Johnny Karout

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

G. Kramer

Technical University of Munich

F. R. Kschischang

University of Toronto

Erik Agrell

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

IEEE Communications Letters

1089-7798 (ISSN)

Vol. 16 9 1361-1364 6249703

Subject Categories

Telecommunications

DOI

10.1109/lcomm.2012.072012.121057

More information

Latest update

5/18/2018