EPSB (Electronic Partially Shared Buffering): A buffering scheme for asynchronous and variable length optical routing for the edge optical packet switch

Abstract

We propose a new buffering scheme for wavelength division multiplexing (WDM) packet switching: the Electronic Partially Shared Buffering (EPSB) scheme. This buffering scheme incorporates separate buffers (i.e., electronic buffers) for all the outputs to share in addition to a prime buffer (i.e., the fiber delay line (FDL) buffer) dedicated to all the outputs. By using this EPSB scheme in cooperation with the proposed outgoing data channel scheduling algorithm, a lower packet loss probability can be achieved with fewer FDLs.