A New DiffServ Edge Router with Controlled‐UDP

Xiao, Yang; Qu, Guangzhi; Kim, Kiseon

doi:10.1049/cje.2015.01.029

Cited by 5 publications

(4 citation statements)

References 11 publications

(25 reference statements)

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“…Packet prioritization is an important aspect of VoIP services, where it ensures that all packets get to their destination without delays or packet loss. DSCP marking follows through packets' prioritization functionality across the different devices in a VoIP network [5]. To ensure testings' consistency; the same data for each of the test calls associated with the two proposed experiments are collected.…”

Section: Voip Phone Calls' Qualitymentioning

confidence: 99%

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A Comprehensive Study of DSCP Markings’ Impact on VOIP QoS in HFC Networks

Daoud¹,

Qu²

2019

IJCNC

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Various factors can have a significant degrading impact on the residential Voice over Internet Protocol (VoIP) phone services' quality. Hybrid fibre-coaxial (HFC) networks typically carry three types of traffic that include voice, data, and video. Unlike data and video, some delays or packet loss can result in a noticeable degraded impact on a VoIP's phone conversation. This paper will analyze and assess VoIP traffic prioritization and its impact on VoIP's quality of service (QoS) based on the concept of differentiated services code point (DSCP) markings. Call testing examines two types of calls. The first set of tests focus on calls that originate from a VoIP network and terminate on a signalling system 7 (SS7) network. The second experiment focuses on calls that originate from SS7 network and terminate on a VoIP network. The research results provide DSCP markings configurations that can improve phone conversations' quality.

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Section: Voip Phone Calls' Qualitymentioning

confidence: 99%

“…Packet prioritization is an important aspect of VoIP service; it ensures that all packets get to their destination delays and without any packet loss. DSCP markings guarantee packets' prioritization functionality across the different devices in VoIP networks [5].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of DSCP Markings’ Impact on VOIP QoS in HFC Networks

Daoud¹,

Qu²

2019

IJCNC

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“…One of these architectures, integrated services (IntServ), reserves the resources required by Resource Reservation Protocol (RSVP) before the data transfer starts [9]. Differentiated services (DiffServ), another architecture, exhibits different behaviors to each class by creating various traffic classes [10].…”

Section: Introductionmentioning

confidence: 99%

A priority-based queuing model approach using destination parameters forreal-time applications on IPv6 networks

Demir¹,

Özçeli̇k²

2020

Turk J Elec Eng & Comp Sci

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In the early days of the Internet architecture, the most important aim is to transmit data over packet switched networks. The traditional Internet architecture used in these networks lacks quality of service. However, today, as realtime applications increase, it is needed. There are approaches to improving the quality of service using the flow label field in the Internet Protocol version 6 header. In this study, a novel algorithm that uses destination network parameters to reduce queuing and end-to-end delay is created. A round-robin-based time-aware priority queue new model is used within this algorithm. Data packets using this proposed queue are prioritized with metric values of the destination network. In order to provide end-to-end service quality, the prioritization value is used by placing it in the flow label field. For this purpose, a new approach to the use of this field is proposed. Delay, one of the most important factors affecting quality of service, is reduced with the proposed algorithm and flow label usage approach. As a result, the reduction in delay times between 22 and 39 ms resulted in various improvement rates between 16.79% and 35.13%.

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“…Packet prioritization can play an important role in VoIP's quality; where it differentiates between VoIP traffic and other traffic types that share the same networks links. The Differentiated Services Code Point (DSCP) marking is based on assigning different values for a various traffic types including VoIP [5]. Packet loss between 1% and 5%, and having less than 300 milliseconds (ms) of end-to-end delay are key elements of VoIP calls [6].…”

Section: Introductionmentioning

confidence: 99%

Optimizing DSCP Marking to Ensure VoIP’s QoS over HFC Network

Daoud¹,

Qu²

2019

9th International Conference on Computer Science, Engineering and Applications (CCSEA 2019)

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Three major factors that can affect Voice over Internet Protocol (VoIP) phone services' quality, these include packet delay, packet loss, and jitter. The focus of this study is specific to the VoIP phone services offered to customers by cable companies that utilize broadband hybrid fiber coaxial (HFC) networks. HFC networks typically carry three types of traffic that include voice, data, and video. Unlike data and video, some delays or packet loss can result in a noticeable degraded impact on a VoIP's phone conversation. We will examine various differentiated services code point (DSCP) marking, then analyze and assess their impact on VoIP's quality of service (QoS). This study mimics the production environment. It examines the relationship between specific DSCP marking's configuration. This research avoids automated test calls and rather focuses on human made call testing. This study relies on users' experience and the captured data to support this research's findings.

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A New DiffServ Edge Router with Controlled‐UDP

Cited by 5 publications

References 11 publications

A Comprehensive Study of DSCP Markings’ Impact on VOIP QoS in HFC Networks

A Comprehensive Study of DSCP Markings’ Impact on VOIP QoS in HFC Networks

A priority-based queuing model approach using destination parameters forreal-time applications on IPv6 networks

Optimizing DSCP Marking to Ensure VoIP’s QoS over HFC Network

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