DocumentCode :
1454980
Title :
Performance analysis of fiber fault PON monitoring using optical coding: SNR, SNIR, and false-alarm probability
Author :
Rad, Mohammad M. ; Fathallah, Habib A. ; Rusch, Leslie A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Laval Univ., Quebec City, QC, Canada
Volume :
58
Issue :
4
fYear :
2010
fDate :
4/1/2010 12:00:00 AM
Firstpage :
1182
Lastpage :
1192
Abstract :
We evaluate the theoretical performance of recently proposed optical coding (OC) technology for fiber fault monitoring of a PON through the signal-to-noise ratio (SNR), the signal-to-noise-plus-interference ratio (SNIR), and the falsealarm probability. First, we develop a mathematical model and expressions for the detected monitoring signals considering a square law detector and using realistic parameters. Second, we address the effect of the transmitted pulse power, network size and light source coherence on the performance of both one-dimensional (1D) and two-dimensional (2D) OC monitoring systems. We show that the transmitted pulse width can be optimized to trade-off the interference and the detection noises. We give simple analytic equations for this optimal pulse width as a function of network parameters. Both 1D and 2D coding schemes are considered. We find that, under perfect dispersion compensation, an incoherent source performs better than lasers for 1D coding. In addition, 2D coding using lasers offer very good performance and supports networks up to 128 customers with SNIR¿10dB; a promising candidate for future high capacity PON. Finally, we apply Neyman-Pearson testing to the receiver of our monitoring system and investigate how coding and network size affect the operational expenses (OPEX) of our monitoring system.
Keywords :
encoding; optical fibre networks; optical fibre testing; probability; signal detection; 1D coding; 2D coding; detection noises; false alarm probability; fiber fault monitoring; light source coherence; operational expenses; optical coding; passive optical networks; signal-to-noise-plus-interference ratio; square law detector; Condition monitoring; Detectors; Laser noise; Mathematical model; Optical receivers; Passive optical networks; Performance analysis; Signal detection; Signal to noise ratio; Space vector pulse width modulation; False-alarm probability (PFA); OCDMA; OTDR; PON; network monitoring; optical coding (OC); signal-to-noise-plus-interference ratio (SNIR); signal-to-noise-ratio (SNR);
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2010.04.080504
Filename :
5439321
Link To Document :
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