Title :
Effect of physical layer impairments on SUM and AND detection strategies for 2-D optical CDMA
Author :
Meenakshi, M. ; Andonovic, I.
Author_Institution :
Dept. of Electron. & Commun. Eng., Anna Univ., Chennai, India
fDate :
5/1/2005 12:00:00 AM
Abstract :
The effect of physical layer impairments on the error performance of two-dimensional wavelength hopping/time spreading optical code-division multiple-access (OCDMA) systems is investigated for SUM and AND detection strategies. Relative intensity noise of the optical source, the signal-dependent shot noise, optical beat noise, and thermal noise at the receiver, fundamental issues in the design of OCDMA systems, are included in the bit-error-rate analysis. The analysis indicates that the SUM detection scheme is more robust in a noisy environment.
Keywords :
code division multiple access; error statistics; optical fibre communication; optical noise; optical receivers; shot noise; thermal noise; 2-D optical CDMA; AND detection; SUM detection; bit-error-rate analysis; optical beat noise; optical code-division multiple-access; physical layer impairments; receiver; relative intensity noise; shot noise; thermal noise; Bit error rate; Detectors; Interference; Multiaccess communication; Optical noise; Optical receivers; Physical layer; Signal analysis; Two dimensional displays; Working environment noise; AND detection; SUM detection; asymmetric prime hop codes; bit-error rate (BER); multiple user interference; optical beat interference; two-dimensional (2-D) optical code-division multiple-access (OCDMA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.843935
