Performance Assessment of MC Placement for Multicast Routing in WDM Networks with Spare Light Splitting

Optical technology gains extensive attention and ever increasing improvement because of the huge amount of network traffic caused by the growing number of internet users and their rising demands. However, with wavelength division multiplexing (WDM), it is easier to take the advantage of optical networks and optical burst switching (OBS) and to construct WDM networks with low delay rates and better data transparency these technologies are the best choices. Furthermore, multicasting in WDM is an urgent solution for bandwidth-intensive applications. In the paper, a new multicasting protocol with OBS is proposed. The protocol depends on a leaf initiated structure. The network is composed of source, ingress switches, intermediate switches, edge switches, and client nodes. The performance of the protocol is examined with Just Enough Time (JET) and Just In Time (JIT) reservation protocols. Also, the paper involves most of the recent advances about WDM multicasting in optical networks. WDM multicasting in optical networks is given as three common subtitles: Broadcast and-select networks, wavelength-routed networks, and OBS networks. Also, in the paper, multicast routing protocols are briefly summarized and optical burst switched WDM networks are investigated with the proposed multicast schemes.

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Traffic Grooming and Delay Constrained Multicast Routing in IP over WDM Networks

2008 IEEE International Conference on Communications ◽

10.1109/icc.2008.985 ◽

2008 ◽

Cited By ~ 7

Author(s):

H.-H. Yen ◽

S. S. W. Lee ◽

B. Mukherjee

Keyword(s):

Multicast Routing ◽

Traffic Grooming ◽

Wdm Networks ◽

Ip Over Wdm

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An Optical Multicast Routing with Minimal Network Coding Operations in WDM Networks

International Journal of Optics ◽

10.1155/2014/693807 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Huanlin Liu ◽

Qinren Shen ◽

Yong Chen

Keyword(s):

Network Coding ◽

Multicast Routing ◽

Routing Algorithm ◽

Wdm Networks ◽

The Other ◽

Optical Wdm Networks ◽

Optical Wdm ◽

Optical Multicast ◽

Multicast Routing Algorithm ◽

Maximal Capacity

Network coding can improve the optical multicast routing performance in terms of network throughput, bandwidth utilization, and traffic load balance. But network coding needs high encoding operations costs in all-optical WDM networks due to shortage of optical RAM. In the paper, the network coding operation is defined to evaluate the number of network coding operation cost in the paper. An optical multicast routing algorithm based on minimal number of network coding operations is proposed to improve the multicast capacity. Two heuristic criteria are designed to establish the multicast routing with low network coding cost and high multicast capacity. One is to select one path from the formerKshortest paths with the least probability of dropping the multicast maximal capacity. The other is to select the path with lowest potential coding operations with the highest link shared degree among the multiple wavelength disjoint paths cluster from source to each destination. Comparing with the other multicast routing based on network coding, simulation results show that the proposed multicast routing algorithm can effectively reduce the times of network coding operations, can improve the probability of reaching multicast maximal capacity, and can keep the less multicast routing link cost for optical WDM networks.

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