Dynamic energy-saving algorithm in green hybrid wireless-optical broadband access network

Gong, Xiaoxue; Hou, Weigang; Guo, Lei; Zhang, Lincong

doi:10.1016/j.ijleo.2012.05.030

Cited by 15 publications

(15 citation statements)

References 8 publications

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“…Because of the differences between unicast and multicast traffic, the sleep processes of ONUs oriented to multicast traffic cannot be handled Journal of Electrical and Computer Engineering 3 by the strategies in [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The authors in [19][20][21] mainly studied the bandwidth allocation problem of multicast traffic in TDM-PON (time division multiplexing-PON), WDM-PON (wavelength division multiplexing-PON), and TDM-WDM-PON, respectively.…”

Section: Related Workmentioning

confidence: 99%

“…Therefore, the irrelevant ONUs stay in a low-power or sleep state to save energy. However, most literature focuses on energy saving oriented to unicast traffic [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. In this work, we propose an energy-saving algorithm for multicast traffic (ESMT) to reduce the energy consumption of EPON ONUs oriented to multicast traffic, while maintaining the traffic delay at an acceptable level.…”

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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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Self Cite

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“…The approaches in [16][17][18][19][20][21][22][23], for example, focus on PONs in general and are not FiWi specific, while [5,9,12,[24][25][26][27][28] are FiWi related.…”

Section: B State Of the Artmentioning

confidence: 99%

“…The work in [28] is a scheme for video delivery in FiWi networks. In [9,12,25], traffic is taken into consideration and sleep/awake periods at the ONUs take QoS into consideration. In [12], a mathematical formalization and an algorithm to schedule sleep and awake periods at every node of the FiWi access network is developed.…”

Section: B State Of the Artmentioning

confidence: 99%

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Correlation-Based Energy Saving Approach for Smart Fiber Wireless Networks

Correia

Schütz

Barradas

2015

J. Opt. Commun. Netw.

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Energy saving is an important issue that should be taken into consideration when planning telecommunication networks. In fiber-wireless access networks the potential for energy consumption reduction is higher, when compared to other architectures, as many routes toward the optical section are available for nodes at the wireless section, allowing some optical network units (ONUs) to enter long sleep state. However, in a multiradio and multichannel wireless front end, some nodes might not be able to reach all the ONUs. Thus, integrated energy saving mechanisms should be smart and allow for ONU mode adjustments according to wireless node reachability and traffic distribution across the wireless section. In this paper we propose a correlation-aware approach that allows the optical line terminal to infer which ONUs are reachable by wireless nodes. Then, when the network is under low traffic conditions, the appropriate set of ONUs to enter long sleep can be selected. This approach is able, therefore, to integrate knowledge of a wireless front end to promote long-standing sleep periods at the ONUs while avoiding heavy exchange of network state information.

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QoS‐aware cross‐domain collaborative energy‐saving mechanism for FiWi virtual networks

Peng

Guo

et al. 2020

Int J Network Mgmt

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Summary The fiber‐wireless (FiWi) access network is a very promising solution for next‐generation access networks. Because of the different protocols between its subnets, it is hard to globally optimize the operation of FiWi networks. Network virtualization technology is applied to FiWi networks to realize the coexistence of heterogeneous networks and centralized control of network resource. The existing virtual resource management methods always be designed to optimize virtual network (VN) request acceptance rate and survivability, but seldom consider energy consumption and varied requirements of quality of service (QoS) satisfaction, which is a hot and important topic in the industrial field. Therefore, this paper focuses on the QoS‐aware cross‐domain collaborative energy saving mechanism for FiWi virtual networks. First, the virtual network embedding (VNE) model, energy consumption model, and VNE profit model of FiWi networks are established. Then, a QoS‐aware in‐region VN embedding mechanism is proposed to guarantee service quality of different services. After that, an underlying resource updating mechanism based on energy efficiency awareness is designed to realize low‐load ONU and wireless routers co‐sleep in FiWi networks. Finally, a QoS‐aware re‐embedding mechanism is presented to allocate proper resource to the VNs affected by the sleeping mechanism. Especially for video VNs, a re‐embedding scheme which adopts traffic splitting and multipath route is introduced to meet resource limitation and low latency. Simulation results show that the proposed mechanism can reduce FiWi network's energy consumption, improve VNE profit, and ensure high embedding accepting rate and strict delay demand of high‐priority VNs.

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Dynamic energy-saving algorithm in green hybrid wireless-optical broadband access network

Cited by 15 publications

References 8 publications

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

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

Correlation-Based Energy Saving Approach for Smart Fiber Wireless Networks

QoS‐aware cross‐domain collaborative energy‐saving mechanism for FiWi virtual networks

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