Abstract
We present architecture and performance of an ultra-fast next-generation optical burst switch (OBS). We propose a hardware-based Slotted Wavelength Assignment Pipeline (SWAP) scheduler which integrates the merits of both low computational complexity and low burst dropping probability. The key idea is to maintain all scheduled data bursts and void intervals in binary vectors. Scheduling of incoming data bursts is performed using fast digital logic circuit without the need to search lookup tables for available time slots on output wavelength channels. The design has been verified using Verilog HDL simulation models. The performance has been evaluated for 1 Tbit/s switch using both Poisson and Self-Similar traffic loads.
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