Streaming traffic fairness over low bandwidth WAN links

Doshi, R.; Cao, Pei

doi:10.1109/wiapp.2003.1210283

Cited by 7 publications

(6 citation statements)

References 7 publications

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“…a) the authors in [26] reached the conclusion that, in the presence of other types of traffic, the streaming application cannot keep its share of the link bandwidth and streams at the lowest or second-lowest bit rates most of the time, almost regardless of the buffer size. In our study, we have come to the same conclusion, as 92% of streaming applications requested at least once a downgrade of their bit rate in order to avoid buffer underflow, and 86% of them requested a second downgrade.…”

Section: Resultsmentioning

confidence: 99%

“…In our study, we chose to use a 20-min video encoded in a Multiple Bit Rate (MBR) format (from [26]). The encoded bit rates are 10 Kbps, 22 Kbps, 85 Kbps, 180 Kbps and 260 Kbps (this is a typical video stream for applications such as Windows Media Player).…”

Section: S T R E a M I N Gmentioning

confidence: 99%

“…Nevertheless, the streaming user could initiate a change in its bit rate based on other parameters, (e.g., call cost or urgency for better QoS). In our simulation study we allow users to change their bit rate (either for an upgrade or a downgrade) up to two times (which, again from [26], must be at least 45 s apart) in the 20-min duration of their stream.…”

Section: S T R E a M I N Gmentioning

confidence: 99%

See 2 more Smart Citations

A Unified Mechanism for Multimedia Downlink Scheduling and Call Admission Control for Future Error-Prone Wireless Networks

Koutsakis

2005

Wireless Pers Commun

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In this paper we design and evaluate the performance of a unified mechanism for downlink scheduling and call admission control of multimedia traffic in a high-capacity TDMA wireless channel. In our scheme, the Base Station interacts with the Call Admission Controller and incorporates predictions on the channel condition in its decision making. Our results show that, with the use of the "intelligent" scheduler-admission controller mechanism, system performance is significantly enhanced compared to two other schemes without prediction on the channel condition.

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Section: Resultsmentioning

confidence: 99%

Section: S T R E a M I N Gmentioning

confidence: 99%

Section: S T R E a M I N Gmentioning

confidence: 99%

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A Unified Mechanism for Multimedia Downlink Scheduling and Call Admission Control for Future Error-Prone Wireless Networks

Koutsakis

2005

Wireless Pers Commun

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“…In Boyden, Mahanti & Williamsom (2005), the authors highlight that the non-TCP friendly nature of Real Networks streaming was increased when contents are delivered using Turboplay (RealNetworks, n.d.). In Doshi & Cao (2003), authors present a detailed study on the mutual effects of different types of traffic (TCP and UDP flows) over extremely low bandwidth WAN links (128Kbps). In spite of the interesting results, bitrates of nowadays user access lines and backbone links are several times higher than the bitrates considered in this work.…”

Section: Previous Workmentioning

confidence: 99%

Performance of Audio/Video Services on Constrained Variable User Access Lines

Vilas¹,

Pañeda²,

Melendi³

et al. 2007

Proceedings of the Second International Conference on Signal Processing and Multimedia Applications

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Nowadays, it is more and more common for the same access line to be shared among different services and even among different users. This change in home users' behaviour, that has given rise to resource consumption close to the maximum available in user access lines, is mainly due to the increase in subscriber access capabilities which have taken place in the last few years. At the same time, contracts fulfilled by customers and network operators only provide guarantees for a reduced percentage of the maximum download/upload capacity of the line. In this paper, a study of the effects on streaming services caused by variations on the access line and by the traffic of other services is carried out. One of the main conclusions of the paper is that the delivery rate of UDP streaming sessions is mainly guided by the quality of the contents and does not consider the congestion in the network. For this reason, a method for delivery rate estimation for UDP streaming sessions is presented.

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“…Streaming flows are then expected to be "TCP-friendly", i.e., to mimic elastic flows so as to get the same rate as if they were themselves elastic [12]. Assuming fair sharing of network resources between elastic and streaming flows, both types of flow are then similarly affected by congestion periods: while elastic flows last longer, the quality of streaming applications suffers from reduced data rates [1,2,11].…”

Section: Introductionmentioning

confidence: 99%

On performance bounds for the integration of elastic and adaptive streaming flows

Bonald

Proutière

2004

Proceedings of the Joint International Conference on Measurement and Modeling of Computer Systems

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We consider a network model where bandwidth is fairly shared by a dynamic number of elastic and adaptive streaming flows. Elastic flows correspond to data transfers while adaptive streaming flows correspond to audio/video applications with variable rate codecs. In particular, the former are characterized by a fixed size (in bits) while the latter are characterized by a fixed duration. This flow-level model turns out to be intractable in general. In this paper, we give performance bounds for both elastic and streaming traffic by means of sample-path arguments. These bounds present the practical interest of being insensitive to traffic characteristics like the distributions of elastic flow size and streaming flow duration.

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Streaming traffic fairness over low bandwidth WAN links

Cited by 7 publications

References 7 publications

A Unified Mechanism for Multimedia Downlink Scheduling and Call Admission Control for Future Error-Prone Wireless Networks

A Unified Mechanism for Multimedia Downlink Scheduling and Call Admission Control for Future Error-Prone Wireless Networks

Performance of Audio/Video Services on Constrained Variable User Access Lines

On performance bounds for the integration of elastic and adaptive streaming flows

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