Comparison of detection techniques in optical CDMA Access Network for point to multipoint configuration.
In this paper, we are proposing a detection scheme known as spectral direct detection technique implemented with Fiber Bragg Grating (FBG) act as encoder/decoder. This FBG based is used to encode and decode the spectral amplitude coding namely modified double weight (MDW) code in Optical Code Divisi...
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| Main Authors: | , , , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2283/ http://eprints.uthm.edu.my/2283/1/Comparison_of_detection_techniques.pdf |
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| Summary: | In this paper, we are proposing a detection scheme
known as spectral direct detection technique
implemented with Fiber Bragg Grating (FBG) act as
encoder/decoder. This FBG based is used to encode
and decode the spectral amplitude coding namely
modified double weight (MDW) code in Optical Code
Division Multiple Access (OCDMA). This code is used
due to its flexibility where its weight can be any even
number that greater than two. Moreover, it can
maintain the cross-correlation parameter equal to one.
The performance of spectral direct detection technique
against AND-subtraction technique which is both
implemented with FBG based encoder/decoder is
compared via simulation in downstream and upstream
access network at point to multipoint (P2MP)
configuration. The simulation will be carried out using
OptiSystem version 6.0 and the performance is
characterized through bit error rate (BER) and power
received at various bit rate |
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