A survey of quality of service differentiation mechanisms for optical burst switching networks

作者：Akar Nail; Karasan Ezhan^*; Vlachos Kyriakos G; Varvarigos Emmanouel A; Careglio Davide; Klinkowski Miroslaw; Sole Pareta Josep

来源：Optical Switching and Networking, 2010, 7(1): 1-11.

DOI：10.1016/j.osn.2009.09.001

• Optical burst switching
• Quality of service differentiation

This paper presents an overview of Quality of Service (QoS) differentiation mechanisms proposed for Optical Burst Switching (OBS) networks. OBS has been proposed to couple the benefits of both circuit and packet switching for the "on demand" use of capacity in the future optical Internet. in such a case, QoS support imposes some important challenges before this technology is deployed. This paper takes a broader view on QoS, including QoS differentiation not only at the burst but also at the transport levels for OBS networks. A classification of existing QoS differentiation mechanisms for OBS is given and their efficiency and complexity are comparatively discussed. We provide numerical examples on how QoS differentiation with respect to burst loss rate and transport layer throughput can be achieved in OBS networks.

• 出版日期2010-1