Development of modified double-weight code and its implementation in multi-rate transmissions

Author

Aljunid, S.A. ; Samad, M.D.A. ; Othman, M. ; Hisham, M.H. ; Kasiman, A.H. ; Abdullah, M.K.

Author_Institution

Dept. of Comput. & Commun. Syst. Eng., Universiti Putra Malaysia, Selangor, Malaysia

Volume

1

fYear

2005

fDate

16-18 Nov. 2005

Abstract

This paper presents a new code structure and its ability in supporting multiple transmission rates in point to point spectral amplitude coding-optical code division multiple access (SAC-OCDMA) links. The double-weight (DW) code family that has a basic fixed weight of 2 was proposed. Modified double weight (MDW) code is a DW code family variation that has variable weight of greater than two. The ability of MDW codes to support simultaneous transmissions at different bit rates is shown through simulated results of the bit error rate (BER) and the eye patterns. Four MDW encoded channels were used at the bit rates of 2.5 Gbps and 10 Gbps. MDW code shown here significantly performs better than Hadamard and modified frequency hopping (MFH) codes.

Keywords

code division multiplexing; error statistics; optical links; telecommunication channels; 10 Gbit/s; 2.5 Gbit/s; bit error rate; double-weight code; modified double weight code; multirate transmissions; spectral amplitude coding-optical code division multiple access links; Bit error rate; Bit rate; Error correction; Error correction codes; Multiaccess communication; Optical fiber testing; Optical fibers; Signal to noise ratio; Systems engineering and theory; Time division multiplexing; Double Weight (DW) code; Modified Double Weight (MDW) code; Multi-rate transmission; SAC-OCDMA;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 2005. Jointly held with the 2005 IEEE 7th Malaysia International Conference on Communication., 2005 13th IEEE International Conference on

ISSN

1531-2216

Print_ISBN

1-4244-0000-7

Type

conf

DOI

10.1109/ICON.2005.1635487

Filename

1635487