Title :
Toward the Shannon Limit of Spectral Efficiency
Author :
Yan, L.-S. ; Liu, X. ; Shieh, W.
Author_Institution :
Center for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, China
fDate :
4/1/2011 12:00:00 AM
Abstract :
Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division multiplexing (OFDM), together with polarization-division multiplexing (PDM) and digital coherent detection, are playing key roles in approaching the Shannon limit of SE for optical fiber communication. Photonics is now entering into a new era of high SE on par with electronics (wireless), yet with orders of magnitude higher overall system capacity.
Keywords :
OFDM modulation; information theory; quadrature amplitude modulation; wavelength division multiplexing; OFDM; PDM; QAM; Shannon limit; advanced modulation format; digital coherent detection; figure of merit; high capacity optical communication; optical fiber communication; orthogonal frequency division multiplexing; polarization division multiplexing; quadrature amplitude modulation; spectral efficiency; Coherence; OFDM; Optical fiber communication; Quadrature amplitude modulation; Wireless communication; Fiber optics; Shannon limit; optical fiber communication; spectral efficiency;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2011.2127468
