An optical multicast packet switching architecture shared with limited-range multi-wavelength converter and full-range wavelength converters
An optical multicast packet switching architecture shared with limited-range multi-wavelength converter and full-range wavelength converters
复制标题
DOI：
10.1016/j.ijleo.2013.03.136
复制
发表时间：
2013-11
期刊：
影响因子：
3.1
通讯作者：
Huanlin Liu;Yang Liu;Lang Deng;Song-lei Shi
中科院分区：
文献类型：
--
作者：
Huanlin Liu;Yang Liu;Lang Deng;Song-lei Shi
具有组播能力的光分组交换可以在未来的光网络中激发出广泛的多点到多点的应用。为了提高波分复用光多播网络的组播性能，提出了一种采用反馈共享少量有限范围多波长转换器(LMWCs)和输出共享多个全范围波长转换器(FRWCs)的光组播分组交换结构。FRWCs用于克服由于仅使用LMWCs而导致的丢包率方面的性能下降。在该体系结构中，两个转换器由所有输入到光组播交换节点的组播分组共享。设计了具有最小边权的最大二部匹配策略，减少了波长转换器的使用，避免了光信号质量的无用下降，从而提高了节点的性能。仿真结果表明，该体系结构及其波长转换器调度算法能够在相对较小的波长转换代价下降低组播丢包率。
Optical packet switch with multicast capability can inspire a broad range of multipoint to multipoint applications in future optical networks. An optical multicast packet switching architecture, equipped with feedback shared small number of limited-range multi-wavelength converters (LMWCs) and output shared some full-range wavelength converters (FRWCs), is proposed for a wavelength-division multiplexed optical multicast network to improve multicast performance in the paper. The FRWCs are used to overcome the performance degradation in terms of packet loss probability due to only use LMWCs. In the architecture, the two converters are shared by all the multicast packets importing to the optical multicast switch node. A maximum bipartite matching with minimum edges weights strategy was designed to employ fewer wavelength converters and avoid useless degradation of optical signal quality for the architecture to improve the node performance. The simulation results show that the proposed architecture and its wavelength converter scheduling algorithm can reduce the multicast packet loss probability with relatively lesser wavelength conversion cost.