A qos-based adaptive resource sharing protection for optical burst switching networks

  • Authors:

  • Hyunsu Lim;Sang-il Ahn;Eun-kyou Kim;Hong-Shik Park

  • Affiliations:

  • Korea Aerospace Research Institute, Daejon, Korea (ROK);Korea Aerospace Research Institute, Daejon, Korea (ROK);Korea Aerospace Research Institute, Daejon, Korea (ROK);Information and Communications University, Daejon, Korea (ROK)

  • Venue:
  • ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
  • Year:
  • 2006

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Abstract

Protection and restoration are essential mechanisms for guaranteeing more reliable traffic delivery services But it is not easy to apply existing mechanisms to optical burst switching (OBS) networks due to its one-way reservation signaling and the statistical burst multiplexing Thus, to achieve the high transmission performance and reliability simultaneously, unique properties of OBS must be considered in the design of protection scheme In this paper, we introduce a new 1:1 link-based OBS protection with several control messages It minimizes burst losses by deflecting bursts until the source edge router arbitrates a working burst path to a backup path when a link failure occurs Based on this, we propose a genuine dynamic resource sharing (DRS) protection algorithm It optimizes the number of provisioned protection wavelengths adaptively based on the traffic load as well as the quality of service (QoS) requirements of bursts in near real-time In addition, DRS can be used as the temporary short-term contention resolution method The simulation results verify that the proposed schemes improve the network resource sharing and backup link's channel utilization while guaranteeing the targeted protection reliability and QoS requirements of class bursts.