2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009 (2009)
Sept. 14, 2009 to Sept. 16, 2009
Carla Raffaelli , D.E.I.S.- University of Bologna, Italy
Michele Savi , D.E.I.S.- University of Bologna, Italy
This paper describes an optical switching fabric which solves contention in a hybrid context, by exploiting both time and wavelength domains through wavelength converters and electronic queues. The relationship between the hybrid nature of the switch and the quality of service requirements of traffic is investigated. Different buffer solutions are proposed depending on the employment of different lasers, possibly with tunable capabilities. The main outcomes of the paper suggest criteria to design feasible high capacity optical switching fabrics, suitable for next generation networks, in synergy with present day technology constraints and QoS requirements. The proposed solutions show how the choices in terms of hardware equipment and packet scheduling will influence the main performance figures, which are packet loss, delay and optical transparency.
buffer storage, optical fibre networks, optical wavelength conversion, packet switching, quality of service, telecommunication traffic
C. Raffaelli and M. Savi, "Hybrid contention resolution in optical switching fabric with QoS traffic," 2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009(BROADNETS), Madrid, 2009, pp. 1-8.