Parallel Prefix Network Based DQPSK Precoder for High-Speed Optical Transmission

Author

Liming, Zhou ; Yongqing, Huang ; Yangan, Zhang ; Gai, Wang ; Minglun, Zhang ; Jinnan, Zhang ; Xueguang, Yuan

Author_Institution

Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

1

fYear

2010

fDate

16-18 July 2010

Firstpage

317

Lastpage

320

Abstract

This paper introduced the principle of parallel prefix network (PPN) and proved the feasibility of applying PPN to differential quadrature phase-shift keying (DQPSK) precoder. Kogge Stone (KS) adder is a typical parallel algorithm of PPN. A ameliorated KS adder was proposed to implement the precoder. With 78Mb/s and 128 parallel channels, 20Gb/s DQPSK precoder was achieved in ML523 (Xilinx Virtex V FPGA). Results presented that the clock minimum period was 1.154 ns and the maximum frequency was 866.551 MHz. About 2% of slice logic resource was employed in the implementation.

Keywords

optical communication; precoding; quadrature phase shift keying; DQPSK precoder; ML523; differential quadrature phase-shift keying; frequency 866.551 MHz; high-speed optical transmission; parallel prefix network; Adders; Equations; Field programmable gate arrays; High speed optical techniques; Mathematical model; Optical transmitters; Timing; DQPSK precoder; FPGA; Kogge Stone (KS); differential quadrature phase-shift keying (DQPSK); parallel prefix network (PPN);

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Applications (IFITA), 2010 International Forum on

Conference_Location

Kunming

Print_ISBN

978-1-4244-7621-3

Electronic_ISBN

978-1-4244-7622-0

Type

conf

DOI

10.1109/IFITA.2010.28

Filename

5635063