Title :
Energy-efficient lightpaths for computational grids
Author :
Tafani, Daniele ; Kantarci, Burak ; Mouftah, Hussein T. ; McArdle, Conor ; Barry, Liam P.
Author_Institution :
Dublin City Univ., Dublin, Ireland
Abstract :
Optical networks have been pointed out as strong candidates to ensure energy-efficiency in the Internet backbone, as well as the distributed applications such as computational grids. In this paper, we propose a distributed framework to address energy-efficient lightpath establishment problem for computational grids over the optical WDM backbone. Each backbone node maintains two thresholds to determine its sleep/wakeup cycle. A node in the sleep mode saves energy by rejecting transient traffic. Each demand is routed based on anycast routing and with the objective of minimum power consumption. Through numerical results, we show that significant energy savings are attained by the proposed framework without requiring centralized information and control. We further show that coordinated sleep and wakeup management in the optical backbone can address the trade-off between propagation delay and energy savings.
Keywords :
Internet; delays; grid computing; power aware computing; telecommunication network routing; wavelength division multiplexing; Internet backbone energy-efficiency; anycast routing; computational grids; distributed applications; energy savings; energy-efficient lightpath establishment problem; energy-efficient lightpaths; optical WDM backbone; optical networks; power consumption; sleep cycle; sleep mode; trade-off between propagation delay; wakeup cycle; wakeup management; Delay; Energy consumption; Energy efficiency; Integrated optics; Internet; Optical fiber networks; Routing; Optical WDM networks; anycast; computational grids; distributed lightpath setup; energy-efficient networks;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6253874