Energy-efficiency improvements for optical access

Vetter, Peter; Suvakovic, Dusan; Chow, Hungkei; Anthapadmanabhan, Prasanth; Kanonakis, Konstantinos; Lee, Ka-Lun; Saliou, Fabienne; Yin, Xin; Lannoo, Bart

doi:10.1109/mcom.2014.6807958

Cited by 27 publications

(21 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However power consumption of a conventional network element is directly proportional to its line rate and capacity, therefore, higher capacity line cards/equipment will inevitably consume more power. The use of a sleep-mode protocol [17] may help alleviate the problem, but it incurs additional network latency and packet delay.…”

Section: B Bit-interleaving Protocol In Downstreammentioning

confidence: 99%

An Asymmetric High Serial Rate TDM-PON With Single Carrier 25 Gb/s Upstream and 50 Gb/s Downstream

Yin

Kerrebrouck

Verbist

et al. 2016

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: B Bit-interleaving Protocol In Downstreammentioning

confidence: 99%

An Asymmetric High Serial Rate TDM-PON With Single Carrier 25 Gb/s Upstream and 50 Gb/s Downstream

Yin

Kerrebrouck

Verbist

et al. 2016

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to realize the PON, different optical access technologies, including time-division multiplexing PON (TDM-PON), time and wavelength division multiplexing PON (TWDM-PON), wavelength division multiplexing PON (WDM-PON), and orthogonal frequency division multiple access PON (OFDMA-PON) have been developed [6]. As an optical line terminal (OLT) interface is shared by multiple optical network units (ONUs), TDM-PON is the most energy-efficient optical access solution currently deployed [3,7].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, software-based protocols embedded in these architectures need to manipulate their sleep functionality. ONU power shedding, dozing, adaptive link rate (ALR), and sleep are the main techniques in the software-based category [6,18]. Regarding to ONU power shedding, the ONU turns some of its devices off in order to reduce power consumption; however, the optical link has full functionality during ONU power shedding; thus, the power reduction is minimized.…”

Section: Introductionmentioning

confidence: 99%

“…Overall, the ONU sleep scheme saves more energy than the power shedding and dozing schemes. However, sleep duration is a critical value when realizing green TDM-PON as setting an overlong sleep duration can reduce the QoS, while short sleep duration increases the ONU power consumption [6]. Several ONU sleep-based techniques are proposed to adjust the sleep duration [19][20][21][22][23][24] based on just-in-time sleep control, fixed bandwidth allocation, downstream-centric scheme (DCS), upstreamcentric scheme (UCS), adaptive delay-aware energy efficient (ADAEE), and double-sleep-state and dynamic doublethreshold receiver selection (EDDS).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

QoS-aware energy-efficient mechanism for sleeping mode ONUs in enhanced EPON

et al. 2015

View full text Add to dashboard Cite

Ethernet passive optical network (EPON) is a broadband access time-division multiplexing passive optical network technology which can be referred to as green network, as it has less power consumption compared with other networks. The optical network unit (ONU) is the best candidate to implement energy-saving adjustments in EPON. Turning off the ONU transmitter (Tx)/receiver (Rx) for substantial time is a common method to achieve the energy saving. However, setting overlong sleep duration decreases the QoS, while short sleep duration increases the ONU power consumption. The challenging issue is how to balance the trade-off between achieving energy saving and guaranteeing QoS. In this paper, we introduce an enhanced EPON architecture and a QoS-aware energy-saving mechanism to reduce ONU energy consumption and guarantee an overall QoS metric based on the ITU-T standards requirements. To achieve the energy saving in the upstream/downstream direction, two sleep durations are defined for the ONU's Tx/Rx to generate four ONU modes including active, transmission, doze, and sleep. Simulation results show that the proposed scheme B I-Shyan Hwang improves the energy efficiency 44 % in average to fulfill the QoS metrics in terms of packet loss, delay and jitter, and the buffer requirement.

show abstract

“…Energy will be wasted when utilization of such network element is low. The use of a sleep-mode protocol [2] may help alleviate the problem, but it incurs additional network latency and packet delay. As reported previously [3][4], the bit-interleaving protocol offers unique benefits for lowering the power consumption of a PON optical network terminal (ONT) by an order of magnitude.…”

Section: Introductionmentioning

confidence: 99%

CBI: a scalable energy-efficient protocol for metro/access networks

Yin

Vyncke

Torfs

et al. 2014

2014 IEEE Online Conference on Green Communications (OnlineGreenComm)

Self Cite

View full text Add to dashboard Cite

Abstract-This paper presents a scalable energy-efficient MAC/PHY protocol for building a metro/access network. The proposed cascaded bit-interleaving (CBI) protocol extends the previously reported bit-interleaving concept to a multi-level paradigm. Moreover, a 40Gb/s 3-level electrical duobinary based physical layer scheme has been proposed for cost and energy saving, especially for end terminals. We compared two implementation approaches in terms of optical budget and transmission penalties. The initial estimate from the proof-ofconcept full-custom ASIC design shows that an ultra-low power metro/access network can be realized.

show abstract

Energy-efficiency improvements for optical access

Cited by 27 publications

References 8 publications

An Asymmetric High Serial Rate TDM-PON With Single Carrier 25 Gb/s Upstream and 50 Gb/s Downstream

An Asymmetric High Serial Rate TDM-PON With Single Carrier 25 Gb/s Upstream and 50 Gb/s Downstream

QoS-aware energy-efficient mechanism for sleeping mode ONUs in enhanced EPON

CBI: a scalable energy-efficient protocol for metro/access networks

Contact Info

Product

Resources

About