Optical OPPM-CDMA receivers with chip-level detectors

Author

Shalaby, Hossam M. H.

Author_Institution

Dept. of Electr. Eng., Alexandria Univ.

Volume

148

Issue

1

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

31

Lastpage

37

Abstract

A chip-level detector for optical overlapping pulse-position modulation code-division multiple-access (OPPM-CDMA) communication systems is proposed. The bit error rate of the proposed system is derived and compared to some traditional receivers under the constraints of fixed data rate and laser pulsewidth. These traditional receivers include OOK-, PPM- and OPPM-CDMA correlators. The throughput limitations of all these receivers are also presented and compared. The results reveal that a significant improvement in the performance is gained when using the proposed scheme. The throughput limitation of the OPPM-CDMA chip-level detection scheme is greater than that of an on-off keying CDMA correlation detection scheme by 7.5 times on average, when the bit error rate does not exceed 10^-9

Keywords

code division multiple access; optical correlation; optical modulation; optical receivers; optical signal detection; pulse position modulation; BER; OOK-correlator; OPPM-CDMA correlator; PPM-correlator; bit error rate; chip-level detectors; code division multiple access; fixed data rate; interference probability; laser pulsewidth; on-off keying CDMA correlation detection; optical OPPM-CDMA receivers; optical overlapping pulse-position modulation; performance; throughput;

fLanguage

English

Journal_Title

Communications, IEE Proceedings-

Publisher

iet

ISSN

1350-2425

Type

jour

DOI

10.1049/ip-com:20010058

Filename

917750