Title :
Decision-aided joint compensation of channel distortion and transmitter IQ imbalance for coherent optical OFDM
Author :
Cao, Shengjiao ; Yu, Changyuan ; Kam, Pooi-Yuen
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
We propose a decision-aided joint compensation scheme of channel distortion and transmitter IQ imbalance for coherent optical orthogonal frequency-division-multiplexed (CO-OFDM) system. In this letter, we compare this decision-aided method with Gram-Schmidt orthogonalization procedure (GSOP) and another pilot-assisted (PA) method through computer simulation. It is demonstrated that our decision-aided method is superior to the other two methods.
Keywords :
OFDM modulation; compensation; optical distortion; optical transmitters; Gram-Schmidt orthogonalization procedure; channel distortion; coherent optical OFDM; coherent optical orthogonal frequency-division-multiplexed system; computer simulation; decision-aided joint compensation scheme; pilot-assisted method; transmitter IQ imbalance; Channel estimation; OFDM; Optical distortion; Optical noise; Optical receivers; Optical transmitters; Signal to noise ratio; Coherent communication; channel distortion; in-phase/quadrature (IQ) imbalance; orthogonal frequency-division multiplexing (OFDM);
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088733
