TY - JOUR
T1 - Iterative Polar Quantization-Based Modulation to Achieve Channel Capacity in Ultrahigh-Speed Optical Communication Systems
AU - Batshon, Hussam G.
AU - Djordjevic, Ivan B.
AU - Xu, Lei
AU - Wang, Ting
N1 - Funding Information:
Manuscript received March 30, 2010; revised May 18, 2010; accepted May 19, 2010. Date of publication May 24, 2010; date of current version June 22, 2010. This work was supported in part by the National Science Foundation under Grant Integrative, Hybrid and Complex Systems 0725405. Corresponding author: H. G. Batshon (e-mail: [email protected]).
PY - 2010/8
Y1 - 2010/8
N2 - In this paper, we propose a nonuniform coded-modulation format based on iterative polar quantization (IPQ) as a scheme to enable achieving channel capacity in ultrahigh-speed optical communication systems. The proposed modulation format is coded with structured low-density parity-check (LDPC) codes optimized for Gaussian channels and, in combination with polarization-multiplexing, can achieve 800 Gb/s per wavelength aggregate rate and beyond utilizing the currently available components operating at 50 GS/s. Using coded IPQ, we show that we can achieve capacity for signal-to-noise ratios (SNRs) of up to 25 dB and increase the total propagation distance over optical transmission systems by 275 km over coded star-quadrature amplitude modulation (QAM).
AB - In this paper, we propose a nonuniform coded-modulation format based on iterative polar quantization (IPQ) as a scheme to enable achieving channel capacity in ultrahigh-speed optical communication systems. The proposed modulation format is coded with structured low-density parity-check (LDPC) codes optimized for Gaussian channels and, in combination with polarization-multiplexing, can achieve 800 Gb/s per wavelength aggregate rate and beyond utilizing the currently available components operating at 50 GS/s. Using coded IPQ, we show that we can achieve capacity for signal-to-noise ratios (SNRs) of up to 25 dB and increase the total propagation distance over optical transmission systems by 275 km over coded star-quadrature amplitude modulation (QAM).
KW - Coded modulation
KW - coherent communications
KW - fiber optics and optical communications
KW - forward error correction
KW - iterative polar quantization (IPQ)
KW - low-density parity-check (LDPC) codes
KW - modulation
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U2 - 10.1109/JPHOT.2010.2051219
DO - 10.1109/JPHOT.2010.2051219
M3 - Article
AN - SCOPUS:85008010279
SN - 1943-0655
VL - 2
SP - 593
EP - 599
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 4
ER -