Hybrid static-dynamic wavelength/waveband allocation scheme for novel broadcast and select star-ring optical regional network

We have proposed a novel star-ring optical regional network architecture with dynamic wavelength/waveband broadcast and select based on bandwidth reservation. In this network, the large number of wavelength resources generated by a single multi-carrier light source can be shared and utilized in a flexible and simple way. In this paper, a hybrid static-dynamic wavelength/waveband allocation scheme combined with dynamic traffic banding has been proposed to reduce the network cost and complexity. To achieve this goal, we define one hybrid static-dynamic wavelength/waveband partition scheme, and develop two wavelength/waveband allocation algorithms based on it. One is Maximum Waveband First (MWF) allocation and the other is Waveband Round Robin (WRR) allocation. Both physical implementation analysis and computer simulation have been carried out to verify our ideas. According to the results, our proposal can effectively reduce the number of used optical switching ports and simplify the edge node architecture.