Parallel shift register generators: theory and applications to parallel scrambling in multibit-interleaved multiplexing environments

Author

Seek Chang Kim ; Byeong Gi Lee

Author_Institution

AT&T Bell Labs., Middletown, NJ, USA

Volume

43

Issue

38020

fYear

1995

Firstpage

1844

Lastpage

1853

Abstract

A theory is developed on parallel shift register generators (PSRG) and its parallel scrambling applications are discussed in the multibit-interleaved multiplexing environments. The PSRG is a shift register generator (SRG) which generates multiple sequences in such a way that when these multiple sequences are multibit-interleaved the resulting sequence becomes identical to some prespecified sequence. The properties of PSRGs are discussed and efficient realizations of PSRGs are examined with stress put on a special class of PSRGs for which the generating polynomials are irreducible. Finally demonstrations are given on the application of the PSRG theory to parallel scrambling of the SDH-based lightwave transmission signals STM-4 and STM-16.<>

Keywords

binary sequences; multiplexing; optical communication; optical information processing; polynomials; synchronous digital hierarchy; SDH; STM-16; STM-4; bit level signal processing; irreducible generating polynomials; lightwave transmission signals; multibit-interleaved multiplexing; multibit-interleaved sequences; multiple sequences generation; parallel scrambling; parallel shift register generators; Polynomials; Shift registers; Stress;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.380236

Filename

380236