Time Division Multiplexing Elastic Waveband Switching Algorithm Based on Markov Prediction

The traffic grooming, routing and spectrum assignment in time-division-multiplexing elastic optical networks are investigated in this paper. The Markov-based mechanism for predicting the future status of consumed time slots is proposed. and the corresponding time-division-multiplexing elastic waveband switching algorithms are designed, including RSBMA-EEU-TDM (Routing, Spectrum, Band and Modulation Allocation based on End-to-End Uniform band merging and Time Division Multiplexing), RSBMA-SBN-TDM (RSBMA based on SuBpath Non-uniform band merging and TDM), and RSBMA-Balance-TDM (RSBMA based on Balance and TDM). Simulation results show the proposed heuristics, Markov-based TDM elastic waveband switching performs well.