Feedback-based Load Balancing Routing for Optical Burst Switching Networks
ABSTRACT An optical burst switching (OBS) network provides preferable broadband infrastructure, and is a promising strong candidate for the future optical Internet. However, there is a major deficiency of the OBS, which occurs when multiple bursts contend for the same link and leads to bursts loss. As an effective method to resolve the above important issue of OBS networks, deflection routing has been proposed. A simple deflection routing without proper routing control cannot sufficiently distribute the traffic of bursts and guarantee ideal performance of OBS particularly for heavy traffic condition. In this paper, we propose a new approach for deflection routing in order to reduce the burst loss and minimize end-to-end delay. The simulation results show that the proposed scheme improves the network utilization and minimize both the burst loss probability and end-to-end delay
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Article: Terabit burst switching.J. High Speed Networks. 01/1999; 8:3-16.
Conference Proceeding: An effective BECN /CRN typed deflection routing for QoS guaranteed optical burst switching[show abstract] [hide abstract]
ABSTRACT: In recent years, WDM networks have received much attention as the Internet backbone networks because of the explosive growth of the Internet IP-based traffic. The optical burst switching (OBS) has been proposed as an effective optical switching technology in the WDM networks (C. Qiao and M. Yoo, 1999). OBS has the advantages in 1) the high usage rate of the bandwidth, and 2) no necessity of optical buffer. However OBS has the burst-contention problem in the networks. The deflection routing is proposed as one of means to solve this problem. In this paper, we propose a new routing method of using deflection routing. In addition, we propose a QoS/CoS control method using a new routing algorithm. Finally, we show the variety of the proposed methods by computer simulations.Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE; 01/2004
Conference Proceeding: Contention resolution for optical burst switching networks using alternative routing[show abstract] [hide abstract]
ABSTRACT: Optical burst switching (OBS) is an approach to building very high capacity routing switches based on optical data paths and electronic control. Therefore, OBS is considered as a viable solution in the high-speed optical Internet backbone. In this paper, we propose an intra-class contention resolution scheme in optical burst switching networks by the enhanced alternative routing algorithm. The blocking probability of the proposed scheme is significantly reduced as compared with the general OBS while the additional delay due to the alternative path is smaller than 10% of the basic offset time.Communications, 2002. ICC 2002. IEEE International Conference on; 02/2002