Achievable rates for four-dimensional coded modulation with a bit-wise receiver
Paper in proceeding, 2014
We study achievable rates for four-dimensional (4D) constellations for spectrally efficient optical systems based on a (suboptimal) bit-wise receiver. We show that PM-QPSK outperforms the best 4D constellation designed for uncoded transmission by approximately 1 dB. Numerical results using LDPC codes validate the analysis.
Author
A. Alvarado
University of Cambridge
Erik Agrell
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Optics InfoBase Conference Papers
21622701 (eISSN)
M2C.19781557529930 (ISBN)
Optical Fiber Communication Conference, OFC 2014
San Francisco, California, USA,
San Francisco, California, USA,
Subject Categories (SSIF 2011)
Physical Sciences
Atom and Molecular Physics and Optics
DOI
10.1364/ofc.2014.m2c.1