Conference Proceedings
Low-complexity fractionally-spaced frequency domain equalization with improved channel estimation for long-haul coherent optical systems
C Zhu, AV Tran, FN Hauske, S Chen, T Anderson, E Skafidas
2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference Ofc Nfoec 2013 | Published : 2013
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. © 2013 OSA.