학술논문

Probabilistic Constellation Shaping and Coding: Essential Elements for Capacity-Approaching Optical Communications
Document Type
Conference
Source
2017 Asia Communications and Photonics Conference (ACP) Asia Communications and Photonics Conference (ACP), 2017. :1-3 Nov, 2017
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Forward error correction
Channel coding
Entropy
Quadrature amplitude modulation
Iterative decoding
Language
ISSN
2162-1098
Abstract
Coding and modulation are two key elements to approach the Shannon limit. As forward- error correction has become indispensable for optical communications, probabilistic constellation shaping (PCS) is becoming the next essential element. This paper reviews the benefits and challenges of PCS.