Fairness of High-Speed TCP Stacks

Miras, D.; Bateman, Martin; Bhatti, Saleem N.

doi:10.1109/aina.2008.143

Cited by 26 publications

(13 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the plots of Figures 3(b), 3(c) and 3(d) are very similar in shape, including peaks an troughs. This is to be expected of BIC and CUBIC, as other studies have showed that they behave similarly [11,12]. Compound TCP's similarity in behaviour is not considered surprising: although BIC and CUBIC respond to loss, loss was not a parameter in our experiments.…”

Section: Self-fairness and Weights W Nsupporting

confidence: 50%

“…Our testbed was the well-known dumbbell arrangement (Figure 1), as used in previous similar studies [5,9,12,16]. This simple testbed helps to reduce the factors of error that may affect the results and concentrate on the protocol behaviour.…”

Section: Testbedmentioning

confidence: 99%

“…[3,12]. However, the JFI has some properties that means it may not provide a suitable evaluation metric [4]:…”

Section: Jain's Fairness Index (Jfi)mentioning

confidence: 99%

See 2 more Smart Citations

Effects of On-path Buffering on TCP Fairness

Bhatti

Bateman

2009

2009 International Conference on Advanced Information Networking and Applications

Self Cite

View full text Add to dashboard Cite

Keeping router buffering low helps minimise delay (as well as keeping router costs low), whilst increasing buffering minimises loss. This is a trade-off for which there is no single 'correct' solution. In order to maintain effective throughput for TCP, whilst minimising router buffer requirements, current results suggest that different amounts of buffering are needed depending on the position in the network (e.g., edge or core), and on the relative capacity of ingress and egress links to a router. However, today we have several different variants of TCP in use, and each is designed to have different behaviour especially on paths with high bandwidth-delay product (BDP) values. We use a testbed to investigate the effects of different amounts of 'onpath' buffering (OPB) on the performance of four TCP variants -TCP NewReno, BIC, CUBIC, and Compound TCPover various end-to-end round-trip-times (RTTs). Specifically, we consider how the variants respond when competing for bandwidth on a bottleneck link. We find that overall performance depends on both the RTT and the OPB provision, and that the observed behaviour is not consistent across the range of RTT and OPB values.

show abstract

Section: Self-fairness and Weights W Nsupporting

confidence: 50%

Section: Testbedmentioning

confidence: 99%

See 1 more Smart Citation

Effects of On-path Buffering on TCP Fairness

Bhatti

Bateman

2009

2009 International Conference on Advanced Information Networking and Applications

Self Cite

View full text Add to dashboard Cite

show abstract

“…An implicit assumption in JFI is that all of the processes being measured are equally capable of consuming the resource for which they are competing, and this is indeed the general assumption made in previous work [9], [15], including our own [1], [16]. However, when examining network flows, this is not necessarily true: some protocols may attain better performance than others given the same network conditions.…”

Section: Resource Usage and Relative Capabilitymentioning

confidence: 71%

Revisiting inter-flow fairness

Bhatti

Bateman

Miras

2008

2008 5th International Conference on Broadband Communications, Networks and Systems

Self Cite

View full text Add to dashboard Cite

Abstract-Many new transport protocols are being defined, including, for example, variants of the Transmission Control Protocol (TCP), to better match the requirements of new applications. A key issue in the evaluation of protocol flows, in terms of their performance, is how fair they are to other flows. Specifically, it is important to understand how a mix of existing and/or new protocols will interact with each other when using the same network resources. Such observations help to inform protocol design, and allow an assessment of potential impacts on users. We present a simple, yet effective, methodology for examining a specific case of inter-flow fairness based solely on measurements of flow performance. As well as using an existing fairness metric, we propose a new metric which provides a richer information summary for the evaluation of fairness.

show abstract

“…A modified version of BIC, named CUBIC is the default TCP congestion control version in present Linux releases. BIC however may achieve better fairness results towards standard TCP version than CUBIC, as highlighted in [20].…”

Section: Envisaged Tcp Versionsmentioning

confidence: 99%

TCP Performance Issues in Satellite and WiFi Hybrid Networks for High-Speed Trains

Giambene¹,

Marchi²,

Kota³

2012

ICST Trans Ubiquitous Env

View full text Add to dashboard Cite

GEO satellite communication systems are an efficient approach for broadband Internet provision on highspeed trains, but some work is still needed to allow a seamless service. In the railway scenario, satellite communications suffer from strong variations in the received signal power and need suitable solutions to deal with long channel disruptions due to tunnels. The approach envisaged in this paper is based on a hybrid network (satellite and terrestrial WiFi coverage) and a Vertical Handover (VHO) procedure to switch seamlessly from one segment to another whenever link quality degrades and a new segment is available. This paper deals with the TCP performance in the presence of VHOs (based on the IEEE 802.21 Media Independent Handover, MIH, standard) from the satellite to a terrestrial wireless segment and viceversa to cover tunnels. Details are provided for the adoption of MIH and MIPv6 in such a context, referring to the BSM standard. Design criteria for the WiFi coverage extension outside the tunnel are also presented. Finally, we have shown that TCP goodput behavior and convergence time can be improved by means of suitable accelerated TCP versions or using cross-layer methods.

show abstract

Fairness of High-Speed TCP Stacks

Cited by 26 publications

References 7 publications

Effects of On-path Buffering on TCP Fairness

Effects of On-path Buffering on TCP Fairness

Revisiting inter-flow fairness

TCP Performance Issues in Satellite and WiFi Hybrid Networks for High-Speed Trains

Contact Info

Product

Resources

About