Multirate Spectral Phase-Encoded Time-Spreading O-CDMA System Using Orthogonal Variable Spreading Factor Code Sequences

Author

Miyazawa, Takaya ; Sasase, Iwao

Author_Institution

Nat. Inst. of Inf. and Commun. Technol., Tokyo

Volume

19

Issue

19

fYear

2007

Firstpage

1502

Lastpage

1504

Abstract

We propose a multirate spectral phase-encoded time- spreading optical code-division multiple-access system using orthogonal variable spreading factor code sequences. The proposed multirate access networking method can support differentiation on more bit-rate/bit-error-rate (BER) requirements. The proposed method can also improve the BER performances of higher rate users compared to the conventional single-rate system due to mitigation of the effect of optical beat interference.

Keywords

code division multiplexing; error statistics; light interference; optical fibre communication; orthogonal codes; variable rate codes; OCDMA system; bit error rate; code sequences; multirate access networking; multirate spectral; optical beat interference; optical code-division multiple-access system; orthogonal variable spreading factor; phase encoded time spreading; Access protocols; Bit error rate; Bit rate; Information security; Multiaccess communication; Multiple access interference; Optical control; Optical fiber networks; Optical variables control; Passive optical networks; Multirate; optical beat interference (OBI); optical code-division multiple-access (O-CDMA); orthogonal variable spreading factor (OVSF) code sequences; spectral phase-encoded time-spreading (SPECTS);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.903876

Filename

4303174