摘要
高丢弃率一直是制约光突发交换(OBS:Optical Burst Switching)发展的关键因素,在OBS中引入双向预约机制是降低突发丢弃的有效方法。文章以OBS网络架构为基础,将波带交换与OBS相结合,提出交换粒度覆盖波带/波长/突发的多粒度光突发交换网络,以求在有效降低突发竞争的同时,提高网络的传输效率,增强OBS网络的实用性。
For Optical Burst Switching（OBS）, high loss rate is alaways one of the key factors to limit its development. In OBS, it is an effective way to reduce the burst loss that the two-way reservation mechanisms are introduced. In this paper, to avoid the burst contention and improve the practicability, based on the architecture of OBS networks, a novel conception namely Multi-Granularity OBS （MG-OBS） networks are proposed with the switching granularity from waveband to burst, which combines the best of waveband switching and OBS technology.
出处
《光通信技术》
CSCD
北大核心
2008年第7期23-25,共3页
Optical Communication Technology
基金
黑龙江省教育厅科学技术项目(编号:11521212)资助
关键词
光突发交换
多粒度交换
波带分配
聚合门限
optical burst switching
multi-granularity switching
waveband partition
assembly threshold
