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D2-ary signaling for incoherent all-optical CDMA systems

: Iversen, K.; Kuhwald, T.; Jugl, E.


IEEE Information Theory Society; Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Symposium on Information Theory 1997. Proceedings : June 29 - July 4, 1997, Ulm, Germany
New York, NY: IEEE, 1997
ISBN: 0-7803-3956-8
ISBN: 0-7803-3957-6
ISBN: 0-7803-3958-4
International Symposium on Information Theory <1997, Ulm>
Fraunhofer HHI ()
code division multiple access; frequency shift keying; optical fibre networks; optical modulation; pulse position modulation; telecommunication signalling; d2-ary signaling; incoherent all-optical cdma systems; two-dimensional multi-ary signaling; optical networks; d-ary ppm; d-ary fsk; code-division multiple-access; data rates; network sizes; frequency requirements

A new method for two-dimensional multi-ary signaling in optical networks is presented, which combines two signaling schemes, D-ary PPM and D-ary FSK. Jointly with code-division multiple-access (CDMA), higher data rates than in conventional CDMA systems and larger network sizes can be achieved. Also fewer frequencies than in wavelength division multiplexing (WDM) are required.