Impairment constraint multicasting in translucent WDM networks: architecture, network design and multicasting routing
Impairment constraint multicasting in translucent WDM networks: architecture, network design and multicasting routing
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半透明 WDM 网络中的损伤约束多播：架构、网络设计和多播路由
DOI：
10.1007/pl00022065
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发表时间：
2006-09
影响因子：
1.7
通讯作者：
Wang, Xiaodong
中科院分区：
文献类型：
--
作者：
Peng, Yunfeng;Sun, Weiqiang;Hu, Weisheng;Jin, Yaohui;Wang, Xiaodong
宽带流媒体应用的普及要求通信网络在光层支持高性能组播。由于多跳全光（透明）WDM 多播网络中的传输损伤，信号在某些多播目的地的质量可能会降低到超出可接收范围。为了保证信号质量，我们引入了半透明的 WDM 组播网络，通过电子 3R（再放大、整形和重定时）功能在某些交换节点处重新生成退化的信号。半透明网络是通过采用三种具有多播能力的交换架构构建的：(1)全光多播交叉连接(oMC-OXC)、(2)电子交换机和(3)半透明多播交叉连接(tMC-OXC)。其中电子开关和tMC-OXC都具有电子3R再生功能。此外，我们提出了一种基于再生权重的多播节点放置算法，以及两种称为最近集线器优先和树集线器优先的多播路由算法，为多播请求提供信号质量保证的路由。对两种典型网状网络的数值模拟表明，只要30%以下的节点具备信号再生能力就足以保证信号质量。
The popularity of broadband streaming applications requires communication networks to support high-performance multicasting at the optical layer. Suffering from transmission impairments in multi-hop all-optical (transparent) WDM multicasting networks, the signal may be degraded beyond the receivable margin at some multicast destinations. To guarantee the signal quality, we introduce a translucent WDM multicasting network to regenerate the degraded signals at some switching nodes with electronic 3R (reamplification, reshaping and retiming) functionality. The translucent network is built by employing three kinds of multicasting capable switching architectures: (1) all-optical multicasting capable cross connect (oMC-OXC), (2) electronic switch and (3) translucent multicasting capable cross connect (tMC-OXC). Among them both the electronic switch and tMC-OXC are capable of electronic 3R regeneration. Furthermore, we propose a multicast-capable nodes placement algorithm based on regeneration weight, and two multicasting routing algorithms called nearest hub first and nearest on tree hub first to provide signal-quality guaranteed routes for the multicasting requests. The numerical simulation on two typical mesh networks shows that it is sufficient to equip 30% of the nodes or less with signal-regeneration capability to guarantee the signal quality.
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DOI：
10.1109/proc.1970.7989
发表时间：
1970-10
期刊：
--
影响因子：
--
作者：
O. E. Delange
通讯作者：
O. E. Delange
DOI：
10.17487/rfc5332
发表时间：
2008-08
期刊：
RFC
影响因子：
--
作者：
Toerless Eckert;E. Rosen;R. Aggarwal;Y. Rekhter
通讯作者：
Toerless Eckert;E. Rosen;R. Aggarwal;Y. Rekhter
影响因子：
16.4
作者：
Maher Ali;J. Deogun
通讯作者：
Maher Ali;J. Deogun
DOI：
10.1109/icc.2001.936993
发表时间：
2001
期刊：
ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240)
影响因子：
--
作者：
Kun-da Wu;Jieh-Chian Wu;Chu-Sing Yang
通讯作者：
Kun-da Wu;Jieh-Chian Wu;Chu-Sing Yang
影响因子：
--
作者：
G. Shen;W. Grover;T. Cheng;S. Bose
通讯作者：
G. Shen;W. Grover;T. Cheng;S. Bose