Energy-efficient Dynamic Bandwidth Allocation for EPON networks with sleep mode ONUs

Liu, Chengjun; Guo, Wei; Xia, Ming

doi:10.1016/j.osn.2014.07.003

Cited by 18 publications

(17 citation statements)

References 28 publications

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“…The delay performance worsens linearly when sleep time increases. In [12], the authors proposed a DBA with an energy efficient MAC control scheme to put ONU into: 1) doze mode at the beginning of the polling cycle to receive the GATE message; and 2) sleep mode based on the queued data through a REPORT message when upstream and downstream data transmissions are completed.…”

Section: State Of the Artmentioning

confidence: 99%

“…The power consumption of an ONU in active mode is 5.052 watts; 3.85 watts in doze mode; and 0.75 watt in sleep mode-following the values used in [12] and [20]. Two scenarios are considered: in the first, sources generate a constant traffic and the packet length is 1518 bytes; while in the second scenario, the traffic is self-similar [21] with a Hurst parameter of H = 0.7 and packet sizes are uniformly distributed from 64 to 1518 bytes.…”

Section: Description Of the Validation Scenariomentioning

confidence: 99%

“…Variables T i−active , T i−doze and T i−sleep represent the time spent by ONU i in each state. The synchronization time for changing from sleep mode to active mode is 0.125 ms and for changing from doze mode to active mode it is 760 ns, as assumed in [12]. Parameter n is the total number of cycles that an ONU can handle during the simulation.…”

Section: Description Of the Validation Scenariomentioning

confidence: 99%

“…• Finally, both transmitter and receiver of the ONU are awake (Tx and Rx are active) when the value of T-low-power UP and T-low-power DS is less than T max and the local time of the ONU is equal to the transmission start time (start-time, T st ). In this state, the ONU receives and transmits control and data frames.Sustainability 2020,12, 2264 12 of ONU state diagram.…”

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confidence: 99%

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An Energy-Efficient Distributed Dynamic Bandwidth Allocation Algorithm for Passive Optical Access Networks

et al. 2020

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The rapid deployment of passive optical access networks (PONs) increases the global energy consumption of networking infrastructure. This paper focuses on the minimization of energy consumption in Ethernet PONs (EPONs). We present an energy-efficient, distributed dynamic bandwidth allocation (DBA) algorithm able to power off the transmitter and receiver of an optical network unit (ONU) when there is no upstream or downstream traffic. Our main contribution is combining the advantages of a distributed DBA (namely, a smaller packet delay compared to centralized DBAs, due to less time being needed to allocate the transmission slot) with energy saving features (that come at a price of longer delays due to the longer queue waiting times when transmitters are switched off). The proposed algorithm analyzes the queue size of the ONUs in order to switch them to doze/sleep mode when there is no upstream/downstream traffic in the network, respectively. Our results show that we minimized the ONU energy consumption across a wide range of network loads while keeping delay bounded.Keywords: passive optical network (PON); ethernet passive optical network (EPON); energy management; energy saving; dynamic bandwidth allocation (DBA)

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Section: State Of the Artmentioning

confidence: 99%

Section: Description Of the Validation Scenariomentioning

confidence: 99%

Section: Description Of the Validation Scenariomentioning

confidence: 99%

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confidence: 99%

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An Energy-Efficient Distributed Dynamic Bandwidth Allocation Algorithm for Passive Optical Access Networks

et al. 2020

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“…With the increasing demands for broadband access in information and communication technology (ICT), the number of subscribers and data rate are expected to significantly increase consequently. Thus, the explosive growth of access networks results in enormous power consumption and makes the energy-saving technologies and system architecture desirable [4]. Among broadband access technologies, fiber-to-the-home (FTTH) is one of major emerging technologies widely employed to deliver data to end users.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2015

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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.

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Sleep assistive dynamic bandwidth assignment scheme for passive optical network (PON)

et al. 2018

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Energy-efficient Dynamic Bandwidth Allocation for EPON networks with sleep mode ONUs

Cited by 18 publications

References 28 publications

An Energy-Efficient Distributed Dynamic Bandwidth Allocation Algorithm for Passive Optical Access Networks

An Energy-Efficient Distributed Dynamic Bandwidth Allocation Algorithm for Passive Optical Access Networks

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

Sleep assistive dynamic bandwidth assignment scheme for passive optical network (PON)

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