BibTeX:

@article{IJIRSTV2I9081,
     title={Optical Burst Switching (OBS): Contention Resolution Technique},
     author={Hitesh A. Momaya, Varun M. Patel, Vijay I. Patel, Vijay B. Patel and Usman J. Sindhi},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={2},
     number={9},
     pages={174--177},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV2I9081.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

In recent era, the scale of the Internet enlarges rapidly and the demand for network bandwidth has been increasing remarkably. Furthermore, the types of network services have been largely increased, and the proportion of multimedia technologies integrated by video and audio becomes larger. All these reasons have made the Internet traffic increase rapidly, and the demand for network bandwidth becomes more urgent than ever. With the explosive growth of the Internet optical fiber seems to be the perfect carrier for future high-speed networks. Nowadays, we are mostly studying the semi-transparent optical transport networks. In optical transport networks, the control messages are processed electronically, and the data are propagated in the high-speed transparent data channels. In this need, three types of optical switching architectures are proposed: Wavelength Switching (WS), Optical Packet Switching (OPS) and Optical Burst Switching (OBS). Of all these approaches, OBS can achieve a good balance between the coarse-gained wavelength routing and fine-gained optical packet switching. In this paper, we discuss main features of optical burst switching (OBS) and similarities between OBS and optical circuit- and packet-switching. We will study a new variation that is suitable for optical WDM networks. The central idea behind OBS is the assembly of client packets into longer bursts at the edge of an OBS domain and the promise of optical technologies to enable switch reconfiguration at the burst level therefore providing a near-term optical networking solution with finer switching granularity in the optical domain.

Contention resolution, Optical Burst Switching, Optical Internet, Optical Packet Switching, WDM