Abstract
In this paper the design, implementation and performance analysis of 2-dimensional and 3-dimensional wavelength/time/space codes in OCDMA system have been presented using folding of Golomb rulers. It is shown that BER increases with increase in number of active users when number of decoder’s increases on receiver side. Further, the optical encoding/decoding for 90 km length of fiber without amplification has been reported with good quality factor (Q) with 32 users while maintaining bit-error rate (BER) < 1e-11 for the correctly decoded signal. The comparison of 3-D single pulse differential detection (SPDD) with designed 2-D wavelength-time (W/T) matrix codes shows that the 3-D SPDD codes perform significantly better.
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