Performance analysis of direct-detection optical CDMA communication systems with avalanche photodiodes

Author

Lam, Alex W. ; Hussain, Awais M.

Author_Institution

Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA

Volume

40

Issue

4

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

810

Lastpage

820

Abstract

Direct-detection optical code-division multiple-access (CDMA) communication systems with avalanche photodiode (APD) photodetectors are investigated. A Chernoff upper bound, modified Chernoff upper bound, and Gaussian approximation on the probability of bit error are presented for general APDs and arbitrary {0,1}-valued optical signature sequences. Multiple-user interference, shot-noise, and receiver thermal noise effects on the bit error probability are studied in detail. One-coincidence optical orthogonal codes and prime codes are considered in the numerical analysis. Equal-weight orthogonal signaling formats that do not require dynamic estimation of the receiver threshold are proposed. The results suggest that equal-weight orthogonal signaling schemes are preferable to the on-off orthogonal signaling schemes commonly employed in the literature

Keywords

avalanche photodiodes; code division multiple access; optical communication; Gaussian approximation; avalanche photodiodes; bit error probability; code-division multiple-access; direct-detection optical CDMA; equal-weight orthogonal signaling; modified Chernoff upper bound; numerical analysis; optical orthogonal codes; optical signature sequences; prime codes; receiver thermal noise; shot-noise; Avalanche photodiodes; Error probability; Gaussian approximation; Interference; Multiaccess communication; Optical noise; Optical receivers; Performance analysis; Photodetectors; Upper bound;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.141436

Filename

141436