Title :
An ameliorated parallel prefix network algorithm based DQPSK precoder for optical communication
Author :
Zhou, Liming ; Zhang, Yangan ; Wang, Gai ; Zhang, Minglun ; Zhang, Jinnan ; Huang, Yongqing ; Li, Ling
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
This paper introduced the implementation of differential quadrature phase-shift keying (DQPSK) precoder employing parallel prefix network (PPN). Kogge Stone (KS) adder is a typical parallel PPN algorithm. An ameliorated KS algorithm was proposed and realized to achieve the precoder. With 78Mb/s and 128 parallel channels, 20 Gb/s DQPSK precoder was implemented in ML523. Results showed that the minimum clock period is 1.109ns, and the maximum frequency is 902.038MHz.
Keywords :
adders; optical communication; quadrature phase shift keying; DQPSK precoder; Kogge Stone adder; ameliorated KS algorithm; ameliorated parallel prefix network algorithm; bit rate 20 Gbit/s; bit rate 78 Mbit/s; differential quadrature phase-shift keying; frequency 902.038 MHz; optical communication; Clocks; Computer networks; Equations; Frequency; Optical feedback; Optical fiber communication; Optical modulation; Phase modulation; Phase shift keying; Polarization mode dispersion; DQPSK; FPGA; Kogge Stone; PPN; precoder;
Conference_Titel :
Transparent Optical Networks (ICTON), 2010 12th International Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-7799-9
Electronic_ISBN :
978-1-4244-7797-5
DOI :
10.1109/ICTON.2010.5549124
