PON versus AON: Which is the best solution to offload core network by peer-to-peer traffic localization

Mahloo, Mozhgan; Chen, J.; Wosinska, Lena

doi:10.1016/j.osn.2014.03.001

Cited by 18 publications

(7 citation statements)

References 25 publications

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“…The DBA uses the benefits of the offline paradigm that the OLT begins bandwidth allocation computation after collecting the REPORT messages from the entire ONUs. The UDBA uses the limited-service DBA [7] to assign a bandwidth to each type of traffic, and each ONU has guaranteed time slot to prevent bandwidth monopoly by highly loaded ONUs. The calculation of guaranteed timeslots for each ONU (W Max ) is based on Eq.…”

Section: Upstream Dba (Udba)mentioning

confidence: 99%

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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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Section: Upstream Dba (Udba)mentioning

confidence: 99%

“…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]. An Ethernet passive optical network (EPON) is a well-known TDM-PON infrastructure with the packets encapsulating in the Ethernet frame.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2015

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“…Our work, like Ref. [5], does not take into consideration only metro/access passive technologies, but also active technologies. Ref.…”

Section: Related Workmentioning

confidence: 99%

Performance evaluation of video server replication in metro/access networks

et al. 2015

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Internet traffic is increasingly becoming a media-streaming traffic. Especially, Video-on-Demand (VoD) services are pushing the demand for broadband connectivity to the Internet, and optical fiber technology is being deployed in the access network to keep up with such increasing demand. To provide a more scalable network architecture for video delivery, network operators are currently considering novel metro/access network architectures which can accommodate replicated video servers directly in their infrastructure. When servers for VoD delivery are placed nearer to the end users, part of the traffic can be offloaded from the core segment of the network, and the end users can experience better Quality of Service (QoS). While the deployment of caching systems for traffic offloading has been studied in the core network, no work has already investigated the potential performance gains by replicating the content in the metro/access segment of the network, even closer to the users. In our work, we will compare the performance of video server replication in different metro/access network architectures, i.e. a metro ring architecture and a tree-based architecture, by considering both active and passive technologies. We will evaluate using both simulative and analytical methodologies how content providers could benefit from the deployment of replicas of video servers in terms of blocking probability of the VoD requests.

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“…Last mile connections are therefore built using passive optical networks (PONs) that have lower operating and maintenance costs than the active network [5]. With the gradual development of this kind of optical networks, many technologies have also been developed that differ primarily in their transmission speeds and network communication.…”

Section: Introductionmentioning

confidence: 99%

Application for GPON Frame Analysis

2019

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This article presents a design of a database model used to gather and analyze data frames transmitted over gigabit passive optical network (GPON) in the downstream direction. An issue with this kind of system is the difficulty in analyzing a transmission on the optical part which is caused by the difference among devices using Ethernet frames technology and passive optical network technology with usage gigabit encapsulation method. In this article, a principle of the downstream direction is described. Next, the design of the database model for the analysis of transmitted data is discussed. Based on the design and implementation of the database, a script capable of processing data gathered by a programmable network card is proposed. The script for physical layer operation, admission, and maintenance (PLOAM) messages analysis is written in the Python programming language.

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PON versus AON: Which is the best solution to offload core network by peer-to-peer traffic localization

Cited by 18 publications

References 25 publications

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

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

Performance evaluation of video server replication in metro/access networks

Application for GPON Frame Analysis

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