Title :
Low-complexity fractionally-spaced frequency domain equalization with improved channel estimation for long-haul coherent optical systems
Author :
Chen Zhu ; Tran, A.V. ; Hauske, F.N. ; Chen, S. ; Anderson, T. ; Skafidas, E.
Author_Institution :
Victoria Res. Lab., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
We present a coherent single-carrier system with optimized channel estimation and low-complexity fractionally-spaced frequency-domain equalizer. The concept is experimentally demonstrated for QPSK and 16-QAM systems to enable substantial overhead and complexity reduction without performance degradation.
Keywords :
channel estimation; equalisers; light coherence; optical fibre communication; optical modulation; quadrature amplitude modulation; quadrature phase shift keying; 16-QAM systems; QPSK; channel estimation; coherent single-carrier system; complexity reduction; fractionally-spaced frequency domain equalization; long-haul coherent optical systems; overhead; Channel estimation; Complexity theory; Equalizers; Frequency-domain analysis; Ice; Phase shift keying; Training;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
