Title :
To switch on or off: A simple case study on energy efficiency in IP-over-WDM networks
Author :
Caria, Marcel ; Chamania, Mohit ; Jukan, Admela
Author_Institution :
Tech. Univ. Carolo-Wilhelmina zu Braunschweig, Braunschweig, Germany
Abstract :
In this paper, we present a simple case study on energy efficiency in IP-over-WDM networks with dynamic circuit capability and compare two different load adaptive schemes, referred to as switch-on and switch-off. While the switch-off technique was already proposed for energy conservation, the switch-on approach is a new paradigm which is based purely on one-time implementations of dynamic circuit capability. Our results show that both approaches can significantly reduce the power consumption and decrease the necessary totally installed capacity, but unlike the switch-off scheme, the switch-on scheme does not affect the path redundancy in the network. Furthermore, switch-on can reduce the number of routing reconfigurations required in the network. While this seems ideal, our results also show that the switch-on scheme uses a large number of small capacity interfaces which may not be suitable from a network planning perspective as it might require frequent capacity upgrades, which alone is an interesting avenue for future research.
Keywords :
IP networks; Internet; energy conservation; telecommunication network planning; telecommunication network routing; wavelength division multiplexing; IP-over-WDM networks; Internet based services; dynamic circuit capability; energy conservation; energy efficiency; network planning; routing reconfigurations; switch-off; switch-off scheme; switch-on scheme; IP networks; Network topology; Power demand; Routing; Switches; Switching circuits; Topology;
Conference_Titel :
High Performance Switching and Routing (HPSR), 2011 IEEE 12th International Conference on
Conference_Location :
Cartagena
Print_ISBN :
978-1-4244-8454-6
Electronic_ISBN :
978-1-4244-8455-3
DOI :
10.1109/HPSR.2011.5986006