Investigation of OBS assembly technique based on various scheduling techniques for maximizing throughput

Abstract

In this paper, the performance of proposed optical burst assembly technique is experimentally investigated under self-similar traffic and traditional scheduling techniques to find the optimal combination of burst assembly and burst scheduling techniques for superior performance of the optical burst switched (OBS) networks. The performance of the newly introduced variable time burst assembly (VT-BA) technique is evaluated in terms of packet loss rate, traffic sent, end to end delay and burst loss rate. Simulation results reveal that the proposed burst assembly algorithm performs well amid various scheduling techniques but CTBR (constant time burst resequencing) and Min-SV (minimum starting void) scheduler gives better compatibility with VT-BA as compared to their other counterparts for most of the parameters under consideration. It is observed that the above combination dramatically decreases the overall burst loss rate while keeping the end-to-end delay in a feasible range.