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M-ary FSK signalling for incoherent all-optical CDMA networks

: Iversen, K.; Jugl, E.; Kuhwald, T.; Muckenheim, J.; Wolf, M.


Institute of Electrical and Electronics Engineers -IEEE-:
Communications. The key to global prosperity. Vol.3 : London, November 18 - 22, 1996, conference record
New York, NY: IEEE, 1996
ISBN: 0-7803-3336-5
ISBN: 0-7803-3337-3
ISBN: 0-7803-3338-1
GLOBECOM <1996, London>
Communications Theory Mini-Conference <4, 1996, London>
Global Internet <1, 1996, London>
Conference Paper
Fraunhofer HHI ()
band-pass filters; code division multiple access; coding errors; error correction codes; error statistics; filtering theory; forward error correction; frequency shift keying; maximum likelihood detection; optical fibre networks; optical modulation; optical signal detection; telecommunication signalling; incoherent all-optical cdma networks; m-ary fsk data signalling; pulse position modulation; ppm; wavelength division multiplexing; wdm; performance; m-ary source coding; repetition rate; tunable mode locked laser; data rate; ook/cdma systems; filter bank; maximum likelihood detector; arrayed waveguides; optical orthogonal codes; ber

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.