2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009 (2009)
Sept. 14, 2009 to Sept. 16, 2009
Oliver Yu , Department of Electrical and Computer Engineering, University of Illinois at Chicago, 60607, USA
Ming Liao , Department of Electrical and Computer Engineering, University of Illinois at Chicago, 60607, USA
The Optical Burst-Train Switching (OBTS) network efficiently transports multi-granular sub-wavelength constant-bit-rate (CBR) and variable-bit-rate (VBR) traffic streams over an all-optical network with sparse wavelength convertibility while minimizing access blocking of traffic streams. Sub-wavelength traffic streams are shaped into periodic burst-trains at network edge with variable burst sizes. Proactive periodic reservation of burst-trains minimizes reservation signaling and scheduling overheads. OBTS combines variable-sized-slot time division multiplexing over network core and stream-based statistical multiplexing at network edge to provide guaranteed bandwidth for CBR traffic, while minimizing data loss of average-provisioned VBR traffic. Performance of OBTS is analyzed in terms of stream or burst-train blocking and data loss of average-rate provisioned VBR traffic. The tuning effects on OBTS performance are investigated with regards to wavelength convertibility factor, switching latency, periodic scheduling frame size, burst size and traffic burstiness.
optical burst switching, optical fibre networks, optical losses, optical wavelength conversion, statistical analysis, telecommunication traffic, time division multiplexing
O. Yu and M. Liao, "Statistical multiplexed Optical Burst-Train Switching network," 2009 Sixth International Conference on Broadband Communications, Networks, and Systems. Broadnets 2009(BROADNETS), Madrid, 2009, pp. 1-6.