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1996
Conference Paper
Titel
M-ary FSK signalling for incoherent all-optical CDMA networks
Abstract
We present a novel approach for the combination of M-ary FSK data signalling with incoherent all-optical code division multiple access (CDMA) systems. In contrast to well-known pulse position modulation (PPM) schemes no critical frame synchronisation is necessary and less frequencies than in wavelength division multiplexing (WDM) are needed, resulting in an improved performance. The M-ary source coding leads to a lower repetition rate of the used tunable mode locked laser or to a higher data rate than in OOK/CDMA systems. The filter bank of the maximum likelihood detector can be easily realized by arrayed waveguides. The theoretical performance for optical orthogonal codes (OOC) is analysed and a comparison to OOK and PPM is given.
Tags
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band-pass filters
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code division multiple access
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coding errors
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error correction codes
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error statistics
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filtering theory
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forward error correction
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frequency shift keying
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maximum likelihood detection
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optical fibre networks
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optical modulation
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optical signal detection
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telecommunication signalling
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incoherent all-optical cdma networks
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m-ary fsk data signalling
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pulse position modulation
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ppm
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wavelength division multiplexing
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wdm
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performance
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m-ary source coding
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repetition rate
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tunable mode locked laser
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data rate
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ook/cdma systems
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filter bank
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maximum likelihood detector
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arrayed waveguides
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optical orthogonal codes
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ber