This letter proposes a new burst assembly technique for supporting QoS in optical burst switching (OBS) networks. It consists of the adaptive-threshold burst assembly mechanism and QoS-based random offsettime scheme. The assembly mechanism, which is fit well to multi-class burst assembly, not only matches with IP QoS mechanism based on packet classification, and also utilizes fairly and efficiently assembly capacity. Based on token-bucket model and burst segment selective discard (BSSD), the offset-time scheme can smooth the traffic to support OBS QoS. The simulation results show that the technique can improvethe performance in terms of packet loss probability (PLP).
© 2005 Chinese Optics Letters
Xiaolong Yang, Mingrui Dang, Youju Mao, and Lemin Li, "A new burst assembly technique for supporting QoS in optical burst switching networks," Chin. Opt. Lett. 1, 266-268 (2003)