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Network architectures for optical burst switching in "broadcast and select" switching

	Döring, H. ; Informationstechnische Gesellschaft -ITG-, Fachausschuß 5.3 Optische Nachrichtentechnik: Photonische Netze. Vorträge der 3. ITG-Fachtagung vom 22. bis 23. April 2002 in Leipzig Berlin: VDE-Verlag, 2002 (ITG-Fachbericht 172) ISBN: 3-8007-2688-2 pp.25-34
	Fachtagung Photonische Netze <3, 2002, Leipzig>

	English
	Conference Paper
	Fraunhofer HHI ()
	broadband networks; error statistics; internet; multicast communication; network topology; optical fibre networks; optical switches; optical wavelength conversion; packet switching; protocols; semiconductor optical amplifiers; soa; optical burst switching; obs; internet protocol; packet aggregation; broadband internet applications; simulation; optical switching nodes; scalability; error rate; signal quality; switching conflict avoidance; intermediate burst storage; multicast applications; broadcast and select switching; network architectures

Abstract
The paper describes the use of optical semiconductor amplifiers (SOA) and explains "optical burst switching" (OBS) as situations where several Internet protocol packets are aggregated electronically for broadband Internet applications. It presents calculations and results of a simulation relating to scalability of optical switching nodes, and examines signal quality and error rate due to noise in semiconductor amplifiers and optical switches, and refers to optical wavelength conversion. The paper notes that optical burst switching should be achievable within 1 microsecond, and refers to avoidance of switching conflicts, by using intermediate burst storage, and also deals with multicast applications, used for conference connections.

: http://publica.fraunhofer.de/documents/N-12830.html