Traffic-prediction-assisted dynamic bandwidth assignment for hybrid wireless optical networks

Hybrid wireless-optical networks provide the inexpensive broadband bandwidth, vital for modern applications, as well as mobility and, scalability required for an access network. However, in order to provide satisfactory Quality of Service (QoS) on such a non-homogeneous network, innovative designs are required. This paper proposes a novel mechanism to significantly improve the delay guarantee, while maintaining throughput, by predicting the incoming traffic to ONUs. Based on the proposed method, two dynamic bandwidth assignment algorithms are proposed. The performance of the proposed algorithms are evaluated by extensive simulations. The results show that the delay bound of delay-sensitive traffic classes, is decreased by a factor of two, while throughput remains the same.