Yang Xiao-long, Zhang Min, Li Le-min. BM-VF-SBD: A Data Channel Scheduling Algorithm to Support QoS for Optical Burst Switching Networks[J]. Journal of Electronics & Information Technology, 2004, 26(10): 1534-1539.
Citation:
Yang Xiao-long, Zhang Min, Li Le-min. BM-VF-SBD: A Data Channel Scheduling Algorithm to Support QoS for Optical Burst Switching Networks[J]. Journal of Electronics & Information Technology, 2004, 26(10): 1534-1539.
Yang Xiao-long, Zhang Min, Li Le-min. BM-VF-SBD: A Data Channel Scheduling Algorithm to Support QoS for Optical Burst Switching Networks[J]. Journal of Electronics & Information Technology, 2004, 26(10): 1534-1539.
Citation:
Yang Xiao-long, Zhang Min, Li Le-min. BM-VF-SBD: A Data Channel Scheduling Algorithm to Support QoS for Optical Burst Switching Networks[J]. Journal of Electronics & Information Technology, 2004, 26(10): 1534-1539.
In the Optical Burst Switching (OBS) network, the data channel scheduling is one of key issues. Bandwidth efficiency and QoS support are the two concerned focuses. However, the existing algorithms pay more attentions to bandwidth efficiency. In this paper, BM-VF-SBD, an efficient data channel scheduling algorithm is developed. It effectively integrates void filling, burst migration and selective burst discard to reduce the bandwidth fragment and support QoS. Its basic idea is in that a new burst is scheduled by migrating some bursts to other channels if none of voids in any channels can accommodate it; otherwise repeating the above processes after selectively dropping some bursts. Meanwhile under the balanced binary search tree data structure, its computational complexity will be O((2w + 1) log w) at most, and be close to that of LAUC-VF and ODBR, In the proposed algorithm, burst migration plays a key role in the improvement of bandwidth efficiency while selective burst discard has great effects on the two sides. The simulation results show that it performs much better than LAUC-VF and ODBR in burst loss probability (overall or individual) and bandwidth fragment ratio.
Xiong Y, Vandenhoute M, Cankaya H. Control architecture in optical burst-switched WDM networks[J].IEEE J. on Selected Areas in Communications.2000, 18(10):1838-1851[2]Yu X, Chen Y, Qiao C. A study of traffic statistics of assembled burst traffic in optical burst switched networks. Proc. of SPIE Opticomm02, Boston, July 2002: 149-159.[3]Turner J. Terabit burst switching. Journal of High Speed Networks, 1999,8(1): 3-16.[4]Xu J, Qiao C, Li J, Xu G. Efficient channel scheduling algorithms in optical burst switched networks[J].Proc. of IEEE INFOCOM2003, San Francisco, USA, April.2003, vol.3:2268-2278[5]Tan S K, Mohan G, Chua K C. Algorithms for burst rescheduling in WDM optical burst switching networks[J].Computer Networks.2003, 41(1):41-55[6]Vokkarane V, et al.. Burst segmentation: An approach for reducing packet loss in optical burstswitched networks[J].Proc. of IEEE ICC2002, New York City, April.2002, vol.5:2673-2677
DownLoad: