Power and cost reduction by hybrid optical packet switching with shared memory buffering

Rhee, JK; Lee, Chankyun; Kim, Ji‐Hwan; Won, Yong Hyub; Choi, Jin Kyeong; Choi, JungYul

doi:10.1109/mcom.2011.5762805

Cited by 16 publications

(12 citation statements)

References 17 publications

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“…Optical network node design In our model we assume an optical layer of a network node consumes extreme low energy per operation [11]. Nanowattscale energy consumption in an optical switching can be achievable by using passive medium fiber optics as an optical switch fabric component [11] [12].…”

Section: Bmentioning

confidence: 99%

“…Nanowattscale energy consumption in an optical switching can be achievable by using passive medium fiber optics as an optical switch fabric component [11] [12]. The passive medium switch consumes energy per switching, not per bit.…”

Section: Bmentioning

confidence: 99%

“…Table II summarizes major component counts and energy consumption of the proposed optical node design in Fig. 4, based on [11] [12]. Comparing with EDFA, OXC switch fabric consumes negligible energy.…”

Section: Bmentioning

confidence: 99%

“…Xia et al [9] and Heddeghem et al [10] compare two packet switching techniques of optical-electrical-optical convertor (OEO) based link-to-link traffic grooming and end-to-end optical bypass. These authors propose the energy-aware optical switching transport node design with extremely lowenergy-consuming passive medium optical components [11] [12]. Passive medium components require no energy to provide data transport; energy is consumed only when it changes the component state for switching.…”

Section: Introductionmentioning

confidence: 99%

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Green IP over WDM network design considering energy-load proportionality

Lee

Kim

Rhee

2012

2012 International Conference on Computing, Networking and Communications (ICNC)

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Considering the traffic explosion in the ICT sector, energy awareness in new technology development becomes one of the most critical requirement. Technology evolution in the semiconductor sector is not sufficient for a sustainable network growth by internet applications. We review importance of the energy proportionality in network device, which is one of the key factors in designing energy-aware network. This paper considers cross-layer optimization for energy consumption in the IP over WDM network. A passive optical component based optical node design is a promising technology with the negligible energy consumption in optical switching, but an IP router node is still power greedy. With ILP simulation to optimize the cross-layer design of IP and optical layers, we report that a traffic grooming technique exhibits different cross-layer design rules depending on the energy-load proportionality of a network device.

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Section: Bmentioning

confidence: 99%

Section: Bmentioning

confidence: 99%

Section: Bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Green IP over WDM network design considering energy-load proportionality

Lee

Kim

Rhee

2012

2012 International Conference on Computing, Networking and Communications (ICNC)

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“…In this research tendency, resolutions for this problem have been extensively studied to cope with explosively increasing IP traffic and energy consumption. J. Rhee [2] numerically analyzed energy consumption of various optical switching technologies and suggested energy optimal optical node architecture. E. Yetginer and S. Huang [3] [4] suggested traffic grooming technique as a packet processing solution and analyzed energy reductions.…”

Section: Introductionmentioning

confidence: 99%

Traffic off-balancing algorithm for energy efficient networks

Kim

Lee

Rhee

2011

Network Architectures, Management, and Applications IX

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Physical layer of high-end network system uses multiple interface arrays. Under the load-balancing perspective, light load can be distributed to multiple interfaces. However, it can cause energy inefficiency in terms of the number of poor utilization interfaces. To tackle this energy inefficiency, traffic off-balancing algorithm for traffic adaptive interface sleep/awake is investigated. As a reference model, 40G/100G Ethernet is investigated. We report that suggested algorithm can achieve energy efficiency while satisfying traffic transmission requirement.

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Differential delay aware instantaneous recovery scheme with traffic splitting

Muktadir

Oki

2015

Int J Communication

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Summary This paper proposes a differential delay aware instantaneous recovery scheme with traffic splitting, in order to tackle multiple link failures, for networks with the coding capability. In the proposed scheme, traffic at the source is split into K equal parts and sent through K working paths. P protection paths carry encoded traffic created from the K split parts at the source. In order to recover from any t failure(s), where 1≤t≤P, the destination node has to buffer the remaining (K + P − t) parts, until the part experiencing the longest delay reaches the destination. The amount of memory buffers depends on the maximum allowable differential delay Δ, the highest difference of delays of any two among the (K + P) disjoint paths, supported at the destination. A large value of Δ increases the amount of required memory buffers, which negatively affects the achievable resource saving because of splitting. We thoroughly investigate how routing with splitting is influenced with respect to Δ, encoding/decoding costs, optical interface rates, buffering costs, the number of protection paths, the number of nodes in the network, and the minimum number of adjacent nodes. The path setup, encoding, synchronization, and merging (decoding) operations are discussed in order to support the proposed scheme. Copyright © 2015 John Wiley & Sons, Ltd.

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Power and cost reduction by hybrid optical packet switching with shared memory buffering

Cited by 16 publications

References 17 publications

Green IP over WDM network design considering energy-load proportionality

Green IP over WDM network design considering energy-load proportionality

Traffic off-balancing algorithm for energy efficient networks

Differential delay aware instantaneous recovery scheme with traffic splitting

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