Performance Evaluation of the Loop Buffer Switch Under Prioritized Traffic and Optical Regeneration

Abstract

Abstract-In this paper, an all-optical regenerator based, photonic packet switch arch itecture, wh ich consists of the fiber loop for the storage of the contending packets, is considered. In the loop buffer, the available buffer space may not be fully utilized due to the limited re-circulat ion count of the data placed on buffer. This limit can be counteracted by placing a poo l of regenerators inside the buffer. As optical regenerators are costly devices, hence they should be placed optimally in the buffer. The simu lations results are presented by consider Priorit ized and nonprioritized traffic. It is shown in the results that regeneration of data is essential if prioritized traffic has to be considered.