Performance analysis of a single-node Hierarchical Time Sliced Optical Burst Switching (Hitsobs) network

Abstract

Hierarchical Time Sliced Optical Burst Switching (HiTSOBS) is a time variant of OBS that aims at supporting Quality of Service. In this paper, we analyze the performance of HiTSOBS to determine the best burst size for a given number of time slots. These evaluations were carried with/without buffer at the core network. Simulation results demonstrate that smaller burst sizes such as 9 KB and 12.5 KB have better performance than bigger burst sizes such as 125 KB when buffers are assumed at the core network. However, without buffer at the core node, bigger burst sizes achieve better performance in terms of burst loss probability while smaller burst sizes have better delay performance.