How to save energy in Passive Optical Networks

Valcarenghi, L.; Van, Dung Pham; Castoldi, P.

doi:10.1109/icton.2011.5970994

Cited by 18 publications

(12 citation statements)

References 13 publications

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“…wake-up is computed as 0.48125 mW [4]. For other parameters, refer to [3]. [18,22], Given an Upstream Packet Arrival Rate.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…The transmitter and receiver sleep independently according to their own traffic. As illustrated in Figure 2, ONU 1 , ONU 2 , and ONU 3 belong to the same group and their receivers sleep simultaneously after time 3 . Upstream, we assume that the ONUs transmit their data by ascending order of their own index numbers.…”

Section: Sleepmentioning

confidence: 99%

“…wake-up is large enough that it cannot be omitted. Hence, researchers are engaged in reducing the time and energy consumption of clock recovery and synchronization [3]. Frequent wake-ups significantly increase the ONU energy consumption.…”

Section: Energy Consumption Modelmentioning

confidence: 99%

“…Therefore, decreasing the energy consumption of broadband access networks is an effective way to green all networks. Furthermore, the Ethernet Passive Optical Network (EPON) has become one of the most feasible broadband access technologies, for its low energy consumption and wide deployment [2,3]. Consequently, energy saving is a topic of paramount importance in EPON contexts today.…”

Section: Introductionmentioning

confidence: 99%

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A Multicast-Traffic-Oriented Energy-Saving Algorithm with a Hybrid Sleep Mode for EPONs

Zhang

Guo

Liu

et al. 2016

Journal of Electrical and Computer Engineering

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High energy consumption in Ethernet Passive Optical Networks (EPONs) has caused intense research on energy-saving methods in recent years. The most common method for EPON energy saving is to cause optical network units (ONUs) to sleep which are idle or low loaded. With the popularity of multimedia applications, the ONUs carry not only unicast traffic but also more and more multicast traffic. However, existing studies mainly focus on ONUs that support only unicast traffic. The many differences between multicast traffic and unicast traffic make it necessary to design novel energy-saving methods. This paper proposes a multicasttraffic-oriented energy-saving algorithm for EPONs, called the energy-saving algorithm for multicast traffic (ESMT). To save as much energy as possible, the proposed algorithm uses a hybrid sleep mode (composed of a deep sleep state and an independent sleep mode) in which not only can ONU enter a deep sleep state, but also the ONU transmitter and receiver can sleep independently. Simulation results show that the proposed algorithm, which is oriented to multicast traffic in EPONs, is more energy efficient than other algorithms.

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“…wake-up is computed as 0.48125 mW [4]. For other parameters, refer to [3]. [18,22], Given an Upstream Packet Arrival Rate.…”

Section: Simulation Resultsmentioning

confidence: 99%

Section: Sleepmentioning

confidence: 99%

Section: Energy Consumption Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Multicast-Traffic-Oriented Energy-Saving Algorithm with a Hybrid Sleep Mode for EPONs

Zhang

Guo

Liu

et al. 2016

Journal of Electrical and Computer Engineering

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“…The functions performed on the 100% of the downstream payload clearly dominate the total ONT energy consumption, even when the ONTś upstream functionality is taken into account. Previous work on PON energy optimization [4] has been limited to sleep modes and hardware modifications, while assuming the use of a standard protocol. In this paper, energy savings achievable by modification of the PON protocol, are explored.…”

Section: Introductionmentioning

confidence: 99%

Low energy bit-interleaving downstream protocol for passive optical networks

Suvakovic¹,

Chow²,

Veen³

et al. 2012

2012 IEEE Online Conference on Green Communications (GreenCom)

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A novel, low energy protocol for passive optical networks (PON), featuring bit-interleaving of downstream traffic, is described. The bit-interleaving protocol enables decimation of the received frame, which eliminates the processing overhead associated with unrelated traffic by customer premises equipment (CPE), while preserving the flexibility of downstream bandwidth allocation. Measurement results obtained from a bit-interleaving PON prototype at the line rate of 10 Gb/s indicate a reduction of CPE dynamic power consumption by a factor of 30, with respect to the power of a standard PON CPE at the same line rate. Additionally, a significant reduction in CPE hardware complexity, with respect to that of a standard PON CPE, is achieved.

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