Precongestion notification: new QoS support for differentiated services IP networks

Menth, Michael; Briscoe, Bob; Tsou, Tina

doi:10.1109/mcom.2012.6163587

Cited by 13 publications

(6 citation statements)

References 4 publications

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“…They apply QoS end-to-end functions in their proposed network. In [10], the authors use pre-congestion and notification to provide feedback about load conditions on the path to the boundary nodes. Further, they utilize this information to propose lightweight admission control and flow termination, and do not use the knowledge of per-flow state on interior nodes; hence, they avoid using DiffServ to achieve the QoS for the proposed network.…”

Section: Literature Surveymentioning

confidence: 99%

QoS Design Consideration for Enterprise and Provider’s Network at Ingress and Egress Router for VoIP protocols

Kolhar

Abualhaj

Rizwan

2016

IJECE

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Compliance with the Service Level Agreement (SLA) metric is a major challenge in a Multiprotocol Label Switching Virtual Private Network (MPLS VPN) because mandatory models must be maintained on both sides of the MPLS VPN in order to achieve end-to-end service levels. The end-to-end service of an MPLS VPN can be degraded owing to various issues such as distributed denial of service (DDoS), and Random Early Detection (RED) that prevents congestion and differentiates between legitimate and illegitimate user traffic. In this study, we propose a centralized solution that uses a SLA Violation Detector (SLAVD) and intrusion detection to prevent SLA violation.

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Section: Literature Surveymentioning

confidence: 99%

QoS Design Consideration for Enterprise and Provider’s Network at Ingress and Egress Router for VoIP protocols

Kolhar

Abualhaj

Rizwan

2016

IJECE

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“…The IETF has also specified another congestion management mechanism, called the Pre-Congestion Notification (PCN) [90,91], which may be used for congestion-based admission control and flow termination in DiffServ packet networks. Considering the adaptive video streaming services, introduced in Section 2.2, this kind of network-side congestion information would be useful to improve their operation in wireless networks, and could be made available through cross-layer signaling.…”

Section: The Purpose Of Cross-layer Information In the Thesismentioning

confidence: 99%

Cross-layer optimized video streaming in heterogeneous wireless networks

Ojanperä¹

2013

SIGMultimedia Rec.

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This dissertation studies the impact of heterogeneous wireless networks on the design and implementation of mobile video streaming services. The aim is to enable Quality of Service (QoS) sensitive video streaming services to take full advantage of the access diversity of heterogeneous networks in order to optimize their operation in terms of quality and efficiency of network resource usage. This nevertheless requires support beyond the layered communication architecture of today's Internet.The thesis proposes an architecture for end-to-end cross-layer signaling and control for video streaming systems. The architecture supports extensive context information transfer in heterogeneous networks; thus, enabling the efficient management of video stream adaptation and user terminal mobility in a diverse and dynamic network environment. This thesis also studies and proposes cross-layer enhancements for adaptive video streaming and mobility management functions enabled by the cross-layer architecture. These include cross-layer video adaptation, congestion-triggered handovers, and concurrent utilization of multiple access networks in the video stream transport. For the video adaptation and multipath transmission, the flexible adaptation and transmission capabilities of the novel scalable video coding technology are used. Regarding the mobility management, the proposed solutions essentially enhance the handover decision-making of the Mobile IP protocol to better support QoS-sensitive video streaming. Finally, the thesis takes a holistic view on the application adaptation and mobility management, and proposes a solution for coordinated control of these two operations in order to achieve end-toend optimization.The resulting mobile video streaming system architecture and the cross-layer control algorithms are evaluated using network simulations and real prototypes. Based on the results, the proposed mechanisms can be seen to be viable solutions for improving video streaming performance in heterogeneous wireless networks. They require changes in the communication end-points and the access network but support gradual deployment. This allows service providers and operators to select only a subset of the proposed mechanisms for implementation. The results also support the need for cross-layer signaling and control in facilitating efficient management and utilization of heterogeneous wireless networks.

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“…Performance and parameter sensitivity analysis is done in [16] for both the SM and CL in dPCN. In [17] an summary is given of many aspects of PCN including the working, benefits, signaling and limitations of PCN in general.…”

Section: Introductionmentioning

confidence: 99%

“…However, RCFT is focused on dPCN. In [17] the path-decoupled signaling in cPCN is discussed. However, it does not define the actual signaling in case of termination of flows.…”

Section: Introductionmentioning

confidence: 99%

Flow termination signaling in the centralized pre-congestion notification architecture

et al. 2017

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a b s t r a c tPre-congestion notification (PCN) protects inelastic traffic by using feedback on network link loads on and acting upon this accordingly. These actions comprise to admission control and termination of flows. Two PCN architectures have been defined by IETF: the centralized and decentralized PCN architecture. The decentralized PCN architecture has received much attention in the literature whereas the centralized PCN architecture has not. In the decentralized architecture, feedback is sent from the egress nodes to ingress nodes, which then take and apply decisions regarding admission of new flows and/or termination of ongoing flows. Signaling occurs only between ingress and egress nodes.In the centralized architecture these decisions are made at a central node, which requires proper signaling for action and information exchange between the central node and the egress and ingress nodes. This signaling has been suggested by other authors, but is not fully defined yet. Our contribution is twofold. We define signaling in the centralized PCN architecture focussing on flow termination, which completes the definition of the signaling in the centralized PCN architecture. Secondly, we run extensive simulations showing that the proposed signaling works well and that the performances of the centralized PCN and the decentralized PCN architectures are similar. Hence, it is expected that results from existing research on the effectiveness of decentralized PCN are also valid when the centralized PCN architecture is used.

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Precongestion notification: new QoS support for differentiated services IP networks

Cited by 13 publications

References 4 publications

QoS Design Consideration for Enterprise and Provider’s Network at Ingress and Egress Router for VoIP protocols

QoS Design Consideration for Enterprise and Provider’s Network at Ingress and Egress Router for VoIP protocols

Cross-layer optimized video streaming in heterogeneous wireless networks

Flow termination signaling in the centralized pre-congestion notification architecture

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