Passive optical networks are currently the major contributor to fixed optical networks energy consumption. Within PON, almost 65% of their energy consumption is due to the customer premises equipments (i.e., the ONUs). Standardisation authorities, industries and researchers are proposing several methods for decreasing ONU energy consumption. This paper describes a method for maximizing energy savings while providing services with delay guarantees. The method exploits cyclic sleep with service-based variable sleep periods. Simulation results prove the method effectiveness with Poisson traffic. The ongoing work in implementing the method in a testbed is also presented.
Improving energy efficiency in TDMA passive optical networks from theory to practice
VALCARENGHI, LUCA;CASTOLDI, Piero;
2012-01-01
Abstract
Passive optical networks are currently the major contributor to fixed optical networks energy consumption. Within PON, almost 65% of their energy consumption is due to the customer premises equipments (i.e., the ONUs). Standardisation authorities, industries and researchers are proposing several methods for decreasing ONU energy consumption. This paper describes a method for maximizing energy savings while providing services with delay guarantees. The method exploits cyclic sleep with service-based variable sleep periods. Simulation results prove the method effectiveness with Poisson traffic. The ongoing work in implementing the method in a testbed is also presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
