LB-MSNC: A load-balanced multicast switching fabric with network coding
LB-MSNC: A load-balanced multicast switching fabric with network coding
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DOI：
10.1109/icc.2015.7249168
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发表时间：
2015-06
期刊：
影响因子：
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通讯作者：
Fuxing Chen;Hui Li;Weiyang Liu;S. Li
中科院分区：
文献类型：
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作者：
Fuxing Chen;Hui Li;Weiyang Liu;S. Li
一个好的交换结构应该具有无内部缓冲、时延保证、低组件复杂度和高速组播等传统交换结构难以实现的特性，因此设计一种支持大规模扩展和高速组播的新型交换结构成为人们关注的焦点。为此，我们重用自路由布尔集中器网络，并在网络前端嵌入多播分组复制分离（MPCS），构建负载均衡的多播交换结构。具体来说，MPCS模块复制组播报文，并根据组播地址进行转发。LB-MSNC的第一阶段负责将传入的流量平衡到统一的小区，而第二阶段负责将小区自路由到最终目的地。与现有的结构不同，LB-MSNC结合了网络编码抗丢包的优点。实验结果和分析表明，该结构具有上述优点，能够实现高速组播交换，适合构建下一代网络（NGN）中的超大规模交换结构。
A good switching fabric should be endowed with the properties of no internal buffers, delay guarantee, low component complexity and high-speed multicast, which are difficult for conventional switching fabrics to achieve, fueling the great interest in designing a new switching fabric that can support large-scale extension and high-speed multicast. Motivated by this, we reuse the self-routing Boolean concentrator network and embed a Multicast Packets Copy Separation (MPCS) in front to construct a load-balanced multicast switching fabric. Concretely, MPCS module replicates the multicast packets and forwards them according to the multicast addresses. The first phase of LB-MSNC is responsible for balancing the incoming traffic into uniform cells while the second phase is in charge of self-routing the cells to their final destinations. Differing from the existing fabrics, LB-MSNC is combined with the merits of network coding against the packet loss. Experimental results and analysis have verified that the proposed fabric is able to achieve high-speed multicast switching and suitable for building super large-scale switching fabric in Next Generation Network(NGN) with all the advantages mentioned above.