Title :
Iterative turbo equalization technique to countervail fiber optic transmission impairments
Author :
Uddin, Mohammad Shorif ; Nondy, Raton Kumar ; Islam, Md Minarul ; Ullah, Shah Md Rahmot
Author_Institution :
Dept. of EEE, Univ. of Dhaka (Mymensingh Eng. Coll.), Dhaka, Bangladesh
Abstract :
The performance of turbo-codes relies on two major concepts: code concatenation so as to build a powerful global code and iterative decoding in order to efficiently approximate the optimal decoding process. A turbo equalization (TE) scheme based on convolutional code and normalized least mean square equalizer for coherent optical communication links is proposed and experimentally demonstrated. For counteracting PDM 16 QAM impairments in dispersion uncompensated coherent transmission links, the iterative TE technique is proved effective.
Keywords :
iterative decoding; optical fibre networks; quadrature amplitude modulation; turbo codes; QAM impairments; TE scheme; code concatenation; coherent optical communication links; convolutional code; countervail fiber optic transmission impairments; iterative TE technique; iterative decoding; iterative turbo equalization technique; normalized least mean square equalizer; optimal decoding process; turbo codes; Bit error rate; Optical fiber communication; Optical fiber dispersion; Optical fibers; Optical receivers; Quadrature amplitude modulation; Signal to noise ratio; Digital signal processing; forward error correction; optical fiber communication;
Conference_Titel :
Informatics, Electronics & Vision (ICIEV), 2014 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-5179-6
DOI :
10.1109/ICIEV.2014.6850765
