Change search
Link to record
Permanent link

Direct link
BETA
Haile, Habtegebreil Kassaye
Publications (5 of 5) Show all publications
Haile, H. K., Hurtig, P., Grinnemo, K.-J. & Brunström, A. (2019). Rate Change Detection in Stationary Cellular Nodes. In: Proceedings of the Fifteenth Swedish National Computer NetworkingWorkshop (SNCNW), Luleå, Sweden. 4-5 June: . Paper presented at The Fifteenth Swedish National Computer NetworkingWorkshop (SNCNW), Luleå, Sweden. 4-5 June.
Open this publication in new window or tab >>Rate Change Detection in Stationary Cellular Nodes
2019 (English)In: Proceedings of the Fifteenth Swedish National Computer NetworkingWorkshop (SNCNW), Luleå, Sweden. 4-5 June, 2019Conference paper, Published paper (Refereed)
Abstract [en]

An increasing number of cellular congestion controlalgorithms (CCAs) are relying on measurements of the deliveryrate observed at the receiver. Accordingly, early detection ofchanges in the receiver’s rate would improve the performanceof such algorithms. Rate measurements over short time intervalscould allow fast detection of change in the rate observed bythe upper layers of a cellular receiver. However, upper layerrate measurements for cellular receivers over a short time scaleproduce unreliable results due to the effect of underlying lowerlayer mechanisms. In this paper, we introduce a rate estimationapproach that reduces the variability observed in short timescale receiver rate measurements and allows faster rate changedetection.

Keywords
Cellular, rate, estimation, Kalman
National Category
Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-72438 (URN)
Conference
The Fifteenth Swedish National Computer NetworkingWorkshop (SNCNW), Luleå, Sweden. 4-5 June
Projects
HITS, 4707
Funder
Knowledge Foundation
Available from: 2019-06-12 Created: 2019-06-12 Last updated: 2019-06-24Bibliographically approved
Haile, H. K., Hurtig, P. & Grinnemo, K.-J. (2019). Rate Measurement Over Short Time Scales inStationary Cellular Receivers. In: Proceedings of the 3rd Workshop on Mobile Network Measurement (MNM 2019), Paris, France, June 2019: . Paper presented at The 3rd Workshop on Mobile Network Measurement (MNM 2019), Paris, France, June 2019.
Open this publication in new window or tab >>Rate Measurement Over Short Time Scales inStationary Cellular Receivers
2019 (English)In: Proceedings of the 3rd Workshop on Mobile Network Measurement (MNM 2019), Paris, France, June 2019, 2019Conference paper, Published paper (Refereed)
Abstract [en]

An increasing number of cellular congestion controlalgorithms (CCAs) are relying on measurements of the deliveryrate observed at the receiver. Accordingly, early detection ofchanges in the receiver’s rate would improve the performanceof such algorithms. Rate measurements over short time intervalscould allow fast detection of change in the rate observed bythe upper layers of a cellular receiver. However, for cellularreceivers, upper-layer rate measurements over short time scalesproduce unreliable results due to the effect of underlying lowerlayer mechanisms such as scheduling and retransmissions. In thispaper, we introduce a rate estimation approach that reduces thevariability observed in short time scale receiver rate measurementsand allows faster rate change detection. We also integratean adaptive mechanism to improve online measurements overdifferent time scales.

Keywords
Cellular, Rate, Estimation, Kalman, Filter
National Category
Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-73005 (URN)
Conference
The 3rd Workshop on Mobile Network Measurement (MNM 2019), Paris, France, June 2019
Projects
HITS, 4707
Funder
Knowledge Foundation
Available from: 2019-06-25 Created: 2019-06-25 Last updated: 2019-07-08Bibliographically approved
Haile, H. K., Hurtig, P., Grinnemo, K.-J., Brunström, A., Atxutegi Narbona, E., Liberal, F. & Arvidsson, Å. (2018). Evaluation of the Impact of TCP BBR Startup on CUBIC Traffic. In: The Fourteenth Swedish National Computer Networking Workshop (SNCNW) 2018: . Paper presented at The Fourteenth Swedish National Computer Networking Workshop (SNCNW) 2018, Karlskrona, Sweden. May 31-June 1, 2018.
Open this publication in new window or tab >>Evaluation of the Impact of TCP BBR Startup on CUBIC Traffic
Show others...
2018 (English)In: The Fourteenth Swedish National Computer Networking Workshop (SNCNW) 2018, 2018Conference paper, Published paper (Other academic)
National Category
Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-70610 (URN)
Conference
The Fourteenth Swedish National Computer Networking Workshop (SNCNW) 2018, Karlskrona, Sweden. May 31-June 1, 2018
Projects
HITS, 4707
Funder
EU, European Research CouncilKnowledge Foundation
Available from: 2018-12-22 Created: 2018-12-22 Last updated: 2019-11-11Bibliographically approved
Hurtig, P., Haile, H. K., Grinnemo, K.-J., Brunström, A., Atxutegi, E., Liberal, F. & Arvidsson, Å. (2018). Impact of TCP BBR on CUBIC Traffic: A mixed workload evaluation. In: Proceedings of the 30th International Teletraffic Congress, ITC 2018: . Paper presented at 30th International Teletraffic Congress, ITC 2018, 4 September 2018 through 7 September 2018 (pp. 218-226). IEEE
Open this publication in new window or tab >>Impact of TCP BBR on CUBIC Traffic: A mixed workload evaluation
Show others...
2018 (English)In: Proceedings of the 30th International Teletraffic Congress, ITC 2018, IEEE, 2018, p. 218-226Conference paper, Published paper (Refereed)
Abstract [en]

A recently proposed congestion control algorithm (CCA) called BBR (Bottleneck Bandwidth and Round-trip propagation time) has shown a lot of promise in avoiding some of the problems that have plagued loss-based CCAs. Nevertheless, deployment of a new alternative algorithm requires a thorough evaluation of the effect of the proposed alternative on established transport protocols like TCP CUBIC. Furthermore, evaluations that consider the heterogeneity of Internet traffic sizes would provide a useful insight into the deployability of an algorithm that introduces sweeping changes across multiple algorithm components. Yet, most evaluations of BBR's impact and competitive fairness have focused on the steady-state performance of large flows. This work expands on previous studies of BBR by evaluating BBR's impact when the traffic consists of flows of different sizes. Our experiments show that under certain circumstances BBR's startup phase can result in a significant reduction of the throughput of competing large CUBIC flows and the utilization of the bottleneck link. In addition, the steady-state operation of BBR can have negative impact on the performance of bursty flows using loss-based CCAs over bottlenecks with buffer sizes as high as two times the bandwidth-delay product. 

Place, publisher, year, edition, pages
IEEE, 2018
Keywords
BBR, Congestion Control, CUBIC, Startup, Steady state, TCP, Bandwidth, Congestion control (communication), Reactor startup, Traffic congestion, Alternative algorithms, Bandwidth delay product, Bottleneck bandwidth, Steady state performance, Steady-state operation, Workload evaluation, Transmission control protocol
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-70575 (URN)10.1109/ITC30.2018.00040 (DOI)2-s2.0-85057239137 (Scopus ID)9780988304550 (ISBN)
Conference
30th International Teletraffic Congress, ITC 2018, 4 September 2018 through 7 September 2018
Projects
HITS, 4707
Funder
Knowledge Foundation
Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2019-11-11Bibliographically approved
Atxutegi, E., Liberal, F., Haile, H. K., Grinnemo, K.-J., Brunström, A. & Arvidsson, Å. (2018). On the use of TCP BBR in cellular networks. IEEE Communications Magazine (3), 172-179
Open this publication in new window or tab >>On the use of TCP BBR in cellular networks
Show others...
2018 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, no 3, p. 172-179Article in journal (Refereed) Published
Abstract [en]

TCP BBR (Bottleneck Bandwidth and Round-trip propagation time) is a new TCP variant developed at Google, and which, as of this year, is fully deployed in Googles internal WANs and used by services such as Google.com and YouTube. In contrast to other commonly used TCP variants, TCP BBR is not loss-based but model-based: It builds a model of the network path between communicating nodes in terms of bottleneck bandwidth and minimum round-trip delay and tries to operate at the point where all available bandwidth is used and the round-trip delay is at minimum. Although, TCP BBR has indeed resulted in lower latency and a more efficient usage of bandwidth in fixed networks, its performance over cellular networks is less clear. This paper studies TCP BBR in live mobile networks and through emulations, and compares its performance with TCP NewReno and TCP CUBIC, two of the most commonly used TCP variants. The results from these studies suggest that in most cases TCP BBR outperforms both TCP NewReno and TCP CUBIC, however, not so when the available bandwidth is scarce. In these cases, TCP BBR provides longer file completion times than any of the other two studied TCP variants. Moreover, competing TCP BBR flows do not share the available bandwidth in a fair way, something which, for example, shows up when shorter TCP BBR flows struggle to get its fair share from longer ones. 

Place, publisher, year, edition, pages
New York, USA: IEEE, 2018
Keywords
tcp, bbr, cubic, newreno, 4g, lte, mobile, congestion control, Bandwidth, Mobile telecommunication systems, Wireless networks, Available bandwidth, Bottleneck bandwidth, Cellular network, Fixed networks, Model-based OPC, Network condition, Network paths, Round trip delay, Transmission control protocol
National Category
Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65339 (URN)10.1109/MCOM.2018.1700725 (DOI)000429329400026 ()2-s2.0-85044079664 (Scopus ID)
Projects
COST-IC1304HITS, 4707
Funder
EU, Horizon 2020, IC1304Knowledge Foundation
Available from: 2017-12-09 Created: 2017-12-09 Last updated: 2019-11-10Bibliographically approved
Organisations

Search in DiVA

Show all publications