Title :
Pre-distortion versus post-equalization for IQ mismatch compensation in CO-OFDM
Author :
Cao, Shengjiao ; Kam, Pooi-Yuen ; Yu, Changyuan
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
We compare pre-distortion and post-equalization schemes for compensating IQ mismatch in coherent Optical OFDM systems. It is shown that pre-distortion scheme has much larger tolerance to both phase and amplitude mismatch compared to post-equalization.
Keywords :
OFDM modulation; equalisers; multiplexing; CO-OFDM; IQ mismatch compensation; amplitude mismatch; coherent optical OFDM system; phase mismatch; post equalization; signal predistortion; OFDM; Optical distortion; Optical noise; Optical receivers; Optical transmitters; Signal to noise ratio;
Conference_Titel :
Opto-Electronics and Communications Conference (OECC), 2012 17th
Conference_Location :
Busan
Print_ISBN :
978-1-4673-0976-9
Electronic_ISBN :
2166-8884
DOI :
10.1109/OECC.2012.6276420
