Strictly Bandlimited ISI-Free Transmission Over Intensity-Modulated Channels
Paper i proceeding, 2011

In this paper, the design and analysis of a new bandwidth-efficient signalling method over the bandlimited intensity-modulated direct-detection (IM/DD) channel is pro- posed. The channel can be modeled as a bandlimited channel with nonnegative input and additive white Gaussian noise. Due to the nonnegativity constraint, the methods previously proposed for conventional bandlimited channels cannot be applied here. We propose a method to transmit without intersymbol interference in a narrower bandwidth compared to previous works, by combining Nyquist pulses with a constant bias. In fact, we can transmit with a bandwidth equal to that of coherent transmission. A trade-off between the required average optical power and the bandwidth is investigated. At low bandwidths, the most power- efficient transmission is obtained by either the parametric linear pulse or the so-called “better than Nyquist” pulse, depending on the exact bandwidth.

Författare

M. Tavan

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Erik Agrell

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Johnny Karout

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

GLOBECOM - IEEE Global Telecommunications Conference

6133734

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/GLOCOM.2011.6133734

ISBN

978-1-4244-9268-8

Mer information

Senast uppdaterat

2018-03-29