Trellis-Coded Modulation in Fiber-Optic Communications
Rapport, 2008
In this paper, we for the first time propose to use rellis-coded modulation (TCM) mapped with 8-level phase shift keying (8PSK) in a fiber-optic communication system. The performance of a back-to-back system is evaluated numerically. For differential detection, an 8PSK TCM system with simple encoder and decoder gives more than 2dB coding gain compared to uncoded quadrature phase shift keying (QPSK) system without sacrificing transmission
bandwidth. For coherent detection, a coding gain of more than 3dB is obtained.
Författare
Hongxia Zhao
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Erik Agrell
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Magnus Karlsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Ämneskategorier
Telekommunikation
Signalbehandling
R - Department of Signals and Systems, Chalmers University of Technology: R008/2008