Contention Resolution of Optical Burst Switching for Data Center

Abstract

Over the last few years, optical switching technology for data centers (DC) has gained much attention due to the potential and benefits of using optical components. The performance of the optical network is directly related to the type of optical switching technique used. Optical burst switch (OBS) is currently being developed as a technology capable of supporting wide bandwidth, enabling high transmission of information and various types of traffic. Losses due to contention between bursts at the core nodes are one of the main problems that prevent the achievement of optical burst switching (OBS) technology on core networks. In this paper, wavelength conversion and deflection routing techniques used together to get the best solution for the problem of contention bursts that might be occurred at the core node. Performance evaluation was investigated by analysis of burst loss probability and steady-state throughput using steady-state occupancy probabilities and Poisson traffic model arrivals and the analyzed results are presented at different mean burst arrival rates and the different number of wavelengths.