Energy efficient dynamic bandwidth allocation for Ethernet passive optical networks

Abstract

We propose a dynamic bandwidth allocation (DBA) algorithm for Ethernet passive optical networks (EPON). The DBA algorithm exploits the sleep mode functionality, where the optical network unit (ONU) at the user premises is put to sleep in every cycle according to the traffic load of the ONU. The DBA algorithm achieves up to 93% power savings in comparison to traditional power-ignore DBAs.