Research Article | Open Access
An Optical Multicast Routing with Minimal Network Coding Operations in WDM Networks
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
Research Article | Open Access
An Optical Multicast Routing with Minimal Network Coding Operations in WDM Networks
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 former shortest paths with the least probability of dropping the multicast maximal 