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http://dx.doi.org/10.7840/KICS.2012.37B.2.130

Performance Evaluation of Energy Saving in Core Router and Edge Router Architectures with LPI for Green OBS Networks  

Yang, Won-Hyuk (전북대학교 컴퓨터공학과)
Jeong, Jin-Hyo (전북대학교 컴퓨터공학과)
Kim, Young-Chon (전북대학교 IT정보공학부 스마트그리드연구센터)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.2B, 2012 , pp. 130-137 More about this Journal
Abstract
In this paper, we propose core and edge router architectures with LPI(Low Power Idle) for reducing energy consumption in OBS networks. The proposed core router architecture is comprised of a BCP switch, a burst switch, line cards and sleep/wake controller for LPI. When the offered load of network is low, sleep/wake controller can change the state of the core router line card from active to sleep state for saving the energy after receiving network control packet. The edge router consists of a switch for access line card, a SCU and OBS edge router line cards. The LPI function in edge router line card is performed through network level control by network control packet, individually. Additionally, PHY/transceiver modules can transition active state to sleep state when burst assemble engine generates new bursts. To evaluate the energy saving performance of proposed architecture with LPI, the power consumption of each router is analyzed by using data sheet of commercial router and optical device. And, simulation is also performed in terms of sleep time of PHY/Transceiver through OPNET.
Keywords
OBS; Router; Energy Efficiency; LPI; Green IT;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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