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Publications (10 of 33) Show all publications
Parichehreh, A., Moosavi, R., Ramachandra, P., Alfredsson, S. & Brunström, A. (2019). LTE as a Road Toward 5G: QoS Analysis in Mobility Scenario Using The Monroe Platform. In: : . Paper presented at IEEE Wireless Communications and Networking Conference 15-19 April 2019 // Marrakech, Morocco (pp. 1-7). IEEE
Open this publication in new window or tab >>LTE as a Road Toward 5G: QoS Analysis in Mobility Scenario Using The Monroe Platform
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2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Seamless wireless connectivity and low latency com- munication in mobility scenarios are two fundamental require- ments in the fifth generation networks to effectively cover a broader range of use cases such as massive machine type communications and ultra-reliable low-latency communications for new industrial/potential users, as well as enhanced mobile broadband for conventional users.

In this paper, we aim at measuring certain key performance indicators in mobility scenarios, highlighting some practical inefficiencies that require more careful consideration when de- signing and enhancing mobility features of 5G networks. We investigate the round trip time, uplink throughput and the impact of handover interruption time on these metrics. Our results are based on three months experiment campaign in a mix of rural, suburban, and urban environment using the geographically distributed MONROE platform. Based on the observed discrep- ancies between measured and standardized LTE performance, we conclude the paper with a discussion of techniques that may need more attention for mobility scenarios in fifth generation mobile networks.

Place, publisher, year, edition, pages
IEEE, 2019
Keywords
5G Networks, Long Term Evolution, Measure- ment Analysis, Handover interruption, Latency
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-72047 (URN)
Conference
IEEE Wireless Communications and Networking Conference 15-19 April 2019 // Marrakech, Morocco
Projects
DigitalWell Research Fas 1, 5465
Funder
Region Värmland
Available from: 2019-05-15 Created: 2019-05-15 Last updated: 2019-06-26Bibliographically approved
Mancuso, V., Peón Quirós, M., Midoglu, C., Moulay, M., Comite, V., Lutu, A., . . . Hirsch, T. (2019). Results from running an experiment as a service platform for mobile broadband networks in Europe. Computer Communications, 33, 89-101
Open this publication in new window or tab >>Results from running an experiment as a service platform for mobile broadband networks in Europe
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2019 (English)In: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 33, p. 89-101Article in journal (Refereed) Published
Abstract [en]

In this article we present a selection from a vast range of experiments run with MONROE, our open experiment as a service (EaaS) platform for measurements and experimentation in Mobile Broadband Networks. We show that the platform can be used to benchmark network performance in a repeatable and controlled manner thanks to the collection of a rich set of geotagged metadata and the execution of discretionary user experiments. Indeed, with the sheer amount of data collected from 12 commercial mobile operators across Europe, MONROE offers an unprecedented opportunity to monitor, analyze and ultimately improve the status of current and future mobile broadband networks. Besides, we show how flexibly the platform allows combining metadata and experimental data series during the experiments or by means of post-processing, and show results produced by our own experiments as well as comment on results obtained by external research groups and developers that have been granted access to our platform.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Mobile broadband, EaaS, Measurements, Network experimentation, Large testbed, Metadata, Performance analysis, Repeatability and reproducibility
National Category
Computer Systems
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-69491 (URN)10.1016/j.comcom.2018.09.004 (DOI)000453619200010 ()
Available from: 2018-10-05 Created: 2018-10-05 Last updated: 2019-05-10Bibliographically approved
Rajiullah, M., Lutu, A., Ali, S. K., Fida, M.-r., Mellia, M., Alay, Ö., . . . Mancuso, V. (2019). Web Experience in Mobile Networks: Lessons from Two Million Page Visits. In: : . Paper presented at 2019 World Wide Web Conference (WWW ’19) 13-17 May San Francisco (pp. 1532-1543).
Open this publication in new window or tab >>Web Experience in Mobile Networks: Lessons from Two Million Page Visits
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2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Measuring and characterizing web page performance is a challeng- ing task. When it comes to the mobile world, the highly varying technology characteristics coupled with the opaque network con- figuration make it even more difficult. Aiming at reproducibility, we present a large scale empirical study of web page performance collected in eleven commercial mobile networks spanning four countries. By digging into measurement from nearly two million web browsing sessions, we shed light on the impact of different web protocols, browsers, and mobile technologies on the web per- formance. We found that the impact of mobile broadband access is sizeable. For example, the median page load time using mobile broadband increases by a third compared to wired access. Mobility clearly stresses the system, with handover causing the most evi- dent performance penalties. Contrariwise, our measurements show that the adoption of HTTP/2 and QUIC has practically negligible impact. To understand the intertwining of all parameters, we adopt state-of-the-art statistical methods to identify the significance of different factors on the web performance. Our analysis confirms the importance of access technology and mobility context as well as webpage composition and browser. Our work highlights the importance of large-scale measurements. Even with our controlled setup, the complexity of the mobile web ecosystem is challenging to untangle. For this, we are releasing the dataset as open data for validation and further research.

Keywords
Monroe; HTTP2, Quic, TCP, Mobile Broadband
National Category
Computer Systems
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-71117 (URN)10.1145/3308558.3313606 (DOI)2-s2.0-85066916953 (Scopus ID)9781450366748 (ISBN)
Conference
2019 World Wide Web Conference (WWW ’19) 13-17 May San Francisco
Available from: 2019-02-18 Created: 2019-02-18 Last updated: 2019-07-02Bibliographically approved
Fischer-Hübner, S., Martucci, L., Fritsch, L., Pulls, T., Herold, S., Iwaya, L. H., . . . Albin, Z. (2018). A MOOC on Privacy by Design and the GDPR. In: Lynette Drevin, Marianthi Theocharidou (Ed.), Information Security Education: Towards a Cybersecure Society. Paper presented at 11th IFIP World Conference on Information Security Education (WISE 11), Held at the 24th IFIP World Computer Congress, WCC 2018, Poznan, Poland, September 18–20, 2018, Proceedings (pp. 95-107). Cham, Switzerland: Springer
Open this publication in new window or tab >>A MOOC on Privacy by Design and the GDPR
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2018 (English)In: Information Security Education: Towards a Cybersecure Society / [ed] Lynette Drevin, Marianthi Theocharidou, Cham, Switzerland: Springer, 2018, p. 95-107Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we describe how we designed a massive open online course (mooc) on Privacy by Design with a focus on how to achieve compliance with the eu gdpr principles and requirements in it engineering and management. This mooc aims at educating both professionals and undergraduate students, i.e., target groups with distinct educational needs and requirements, within a single course structure. We discuss why developing and publishing such a course is a timely decision and fulfills the current needs of the professional and undergraduate education. The mooc is organized in five modules, each of them with its own learning outcomes and activities. The modules focus on different aspects of the gdpr that data protection officers have to be knowledgeable about, ranging from the legal basics, to data protection impact assessment methods, and privacy-enhancing technologies. The modules were delivered using hypertext, digital content and three video production styles: slides with voice-over, talking heads and interviews. The main contribution of this work is the roadmap on how to design a highly relevant mooc on privacy by design and the gdpr aimed at an heterogeneous audience.

Place, publisher, year, edition, pages
Cham, Switzerland: Springer, 2018
Series
IFIP Advances in Information Technology (AICT) ; 531
Keywords
privacy, teaching, mooc, course design
National Category
Engineering and Technology Humanities and the Arts
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-69413 (URN)10.1007/978-3-319-99734-6_8 (DOI)978-3-319-99734-6 (ISBN)
Conference
11th IFIP World Conference on Information Security Education (WISE 11), Held at the 24th IFIP World Computer Congress, WCC 2018, Poznan, Poland, September 18–20, 2018, Proceedings
Projects
WISR
Funder
Knowledge Foundation, NU16
Available from: 2018-09-27 Created: 2018-09-27 Last updated: 2019-07-11Bibliographically approved
Parichehreh, A., Alfredsson, S. & Brunström, A. (2018). Measurement Analysis of TCP Congestion Control Algorithms in LTE Uplink. In: 2018 Network Traffic Measurement and Analysis Conference (TMA): . Paper presented at Network Traffic Measurement and Analysis Conference 2018 (pp. 1-8). New York: IEEE
Open this publication in new window or tab >>Measurement Analysis of TCP Congestion Control Algorithms in LTE Uplink
2018 (English)In: 2018 Network Traffic Measurement and Analysis Conference (TMA), New York: IEEE, 2018, p. 1-8Conference paper, Published paper (Refereed)
Abstract [en]

The unprecedented growth of user generated con- tents yielded by the proliferation of social networks applications, cellular based video surveillance and device-to-device (D2D) communication, makes the cellular uplink communication an attractive topic. In this paper we conduct a systematic evaluation and measurement analysis to characterize cellular uplink traffic and compare its interplay with different TCP congestion control algorithms (CCA), namely NewReno, Cubic, and BBR, in both stationary and mobility scenarios. The evaluation encompasses average throughput, average round trip time (RTT), fairness among simultaneous flows, and packet retransmission. The in- tended behavior of BBR has been observed in LTE uplink, but some severe issues such as lack of fairness among simultaneous flows and massive on device packet losses have been observed. It is observed that the lack of fairness among simultaneous flows can unpredictably change the throughput of multi-flow applications.

Place, publisher, year, edition, pages
New York: IEEE, 2018
Keywords
Measurement Analysis, Congestion Control Al- gorithms, Long Term Evolution, Uplink Communications
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-69298 (URN)10.23919/TMA.2018.8506522 (DOI)000454696100014 ()
Conference
Network Traffic Measurement and Analysis Conference 2018
Available from: 2018-09-18 Created: 2018-09-18 Last updated: 2019-06-14
Hurtig, P., Alfredsson, S., Brunström, A., Evensen, K., Grinnemo, K.-J., Fosselie Hansen, A. & Rozensztrauch, T. (2017). A NEAT Approach to Mobile Communication. In: MobiArch ’17 Proceedings of the Workshop on Mobility in the Evolving Internet Architecture: . Paper presented at The ACM SIGCOMM 2017 Workshop on Mobility in the Evolving Internet Architecture (MobiArch 2017), Los Angeles, CA, USA, August 21-25, 2017 (pp. 7-12). Association for Computing Machinery (ACM)
Open this publication in new window or tab >>A NEAT Approach to Mobile Communication
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2017 (English)In: MobiArch ’17 Proceedings of the Workshop on Mobility in the Evolving Internet Architecture, Association for Computing Machinery (ACM), 2017, p. 7-12Conference paper, Published paper (Refereed)
Abstract [en]

The demands for mobile communication is ever increasing. Mobile applications are increasing both in numbers and in heterogeneity of their requirements, and an increasingly diverse set of mobile technologies are employed. This creates an urgent need for optimizing end-to-end services based on application requirements, conditions in the network and available transport solutions; something which is very hard to achieve with today's Internet architecture. In this paper, we introduce the NEAT transport architecture as a solution to this problem. NEAT is designed to offer a flexible and evolvable transport system, where applications communicate their transport-service requirements to the NEAT system in a generic, transport-protocol independent way. The best transport option is then configured at run time based on application requirements, network conditions, and available transport options. Through a set of real life mobile use case experiments, we demonstrate how applications with different properties and requirements could employ the NEAT system in multi-access environments, showing significant performance benefits as a result.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2017
Keywords
NEAT, transport selection, heterogeneity, multiple paths, policies, TCP, MPTCP, cellular, WLAN, LTE, 3G
National Category
Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-48467 (URN)10.1145/3097620.3097622 (DOI)978-1-4503-5059-4 (ISBN)
Conference
The ACM SIGCOMM 2017 Workshop on Mobility in the Evolving Internet Architecture (MobiArch 2017), Los Angeles, CA, USA, August 21-25, 2017
Projects
A New, Evolutive API and Transport-Layer Architecture for the Internet (NEAT)
Funder
EU, Horizon 2020, 644334
Available from: 2017-05-04 Created: 2017-05-04 Last updated: 2018-11-15Bibliographically approved
Jalili, L., Parichehreh, A., Alfredsson, S., Garcia, J. & Brunström, A. (2017). Efficient traffic offloading for seamless connectivity in 5G networks onboard high speed trains. In: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC: . Paper presented at 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017, 8-13 October 2017, Montreal, Canada (pp. 1-6). IEEE
Open this publication in new window or tab >>Efficient traffic offloading for seamless connectivity in 5G networks onboard high speed trains
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2017 (English)In: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, IEEE, 2017, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

Seamless wireless connectivity in high mobility scenarios (≥ 300 km/h), is one of the fundamental key requirements for the future 5G networks. High speed train (HST) is one of the preferred mid-range transportation systems, and highlights the challenges of providing wireless connectivity in high mobility scenarios for the 5G networks. Advanced version of Long Term Evolution (LTE-A) from the Third Generation Partnership Project (3GPP) with peak data rate up to 100 Mbps in high mobility scenarios paved the road toward high quality and cost effective onboard Internet in HSTs. However, frequent handovers (HO) of large number of onboard users increase the service interruptions that in turn inevitably decrease the experienced quality of service (QoS). In this paper, according to the two-tier architecture of the HST wireless connectivity, we propose a novel and practically viable onboard traffic offloading mechanism among the HST carriages that effectively mitigates the service interruptions caused by frequent HOs of massive number of onboard users. The proposed architecture does not imply any change on the LTE network standardization. Conclusions are supported by numerical results for realistic LTE parameters and current HST settings.

Place, publisher, year, edition, pages
IEEE, 2017
Keywords
5G networks, High speed trains, QoS provisioning, Traffic offloading, Cost effectiveness, Long Term Evolution (LTE), Mobile telecommunication systems, Network architecture, Quality of service, Queueing networks, Radio communication, Railroad cars, Railroad transportation, Railroads, Wireless telecommunication systems, High speed train (HST), Proposed architectures, Seamless connectivity, Third generation partnership project (3GPP), Two-tier architecture, Wireless connectivities, 5G mobile communication systems
National Category
Telecommunications Computer Sciences Software Engineering
Identifiers
urn:nbn:se:kau:diva-67276 (URN)10.1109/PIMRC.2017.8292462 (DOI)000426970901150 ()2-s2.0-85045264762 (Scopus ID)9781538635315 (ISBN)
Conference
28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017, 8-13 October 2017, Montreal, Canada
Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2019-08-02Bibliographically approved
Alay, Ö., Lutu, A., Peón-Quirós, M., Mancuso, V., Hirsch, T., Evensen, K., . . . Ajmone Marsan, M. (2017). Experience: An open platform for experimentation with commercial mobile broadband networks. In: MobiCom '17 Proceedings of the 23rd Annual International Conference on Mobile Computing and Networking: . Paper presented at MobiCom'17 The 23rd Annual International Conference on Mobile Computing and Networking, Snowbird, Utah, USA, October 16-20, 2017 (pp. 70-78). New York: ACM Digital Library
Open this publication in new window or tab >>Experience: An open platform for experimentation with commercial mobile broadband networks
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2017 (English)In: MobiCom '17 Proceedings of the 23rd Annual International Conference on Mobile Computing and Networking, New York: ACM Digital Library, 2017, p. 70-78Conference paper, Published paper (Refereed)
Abstract [en]

Open experimentation with operational Mobile Broadband (MBB) networks in the wild is currently a fundamental requirement of the research community in its endeavor to address the need of innovative solutions for mobile communications. Even more, there is a strong need for objective data about stability and performance of MBB (e.g., 3G/4G) networks, and for tools that rigorously and scientifically assess their status. In this paper, we introduce the MONROE measurement platform: an open access and flexible hardware-based platform for measurements and custom experimentation on operational MBB networks. The MONROE platform enables accurate, realistic and meaningful assessment of the performance and reliability of 11 MBB networks in Europe. We report on our experience designing, implementing and testing the solution we propose for the platform. We detail the challenges we overcame while building and testing the MONROE testbed and argue our design and implementation choices accordingly. We describe and exemplify the capabilities of the platform and the wide variety of experiments that external users already perform using the system

Place, publisher, year, edition, pages
New York: ACM Digital Library, 2017
National Category
Computer Sciences Computer Systems Communication Systems Computer Engineering
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65147 (URN)10.1145/3117811.3117812 (DOI)000462893900007 ()978-1-4503-4916-1 (ISBN)
Conference
MobiCom'17 The 23rd Annual International Conference on Mobile Computing and Networking, Snowbird, Utah, USA, October 16-20, 2017
Projects
MONROE
Funder
EU, Horizon 2020
Available from: 2017-11-09 Created: 2017-11-09 Last updated: 2019-08-02Bibliographically approved
Beckman, C., Garcia, J., Alfredsson, S. & Brunström, A. (2017). On the Impact of Velocity on the Train-to-Earth MIMO Propagation Channel: Statistical Observations and Qualitative Analysis. In: 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting: . Paper presented at 2017 IEEE AP-S Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, July 9–14, 2017. San Diego, California, USA (pp. 1865-1866). IEEE
Open this publication in new window or tab >>On the Impact of Velocity on the Train-to-Earth MIMO Propagation Channel: Statistical Observations and Qualitative Analysis
2017 (English)In: 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, 2017, p. 1865-1866Conference paper, Published paper (Refereed)
Abstract [en]

We provide measured data collected from 97 trains completing over 7000 journeys in Sweden showing that the throughput over LTE is impacted by train velocity. In order to explain these observations we assume that the underlying causes can be found in the implementation of the MIMO system into LTE Rel. 8 and the diffuse scattering of signals from ground reflections.

Place, publisher, year, edition, pages
IEEE, 2017
Series
EEE Antennas and Propagation Society International Symposium
Keywords
Train-to-Earth propagation channel, statistical data, velocity, MIMO, scattering.
National Category
Computer Sciences Telecommunications
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65250 (URN)10.1109/APUSNCURSINRSM.2017.8072975 (DOI)000424765301472 ()978-1-5386-3284-0 (ISBN)
Conference
2017 IEEE AP-S Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, July 9–14, 2017. San Diego, California, USA
Projects
HITS
Available from: 2017-11-22 Created: 2017-11-22 Last updated: 2018-08-14Bibliographically approved
Peón-Quirós, M., Mancuso, V., Comite, V., Lutu, A., Alay, Ö., Alfredsson, S., . . . Hirsch, T. (2017). Results from Running an Experiment as a Service Platform for Mobile Networks. In: WiNTECH '17 Proceedings of the 11th Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization: . Paper presented at WiNTECH '17 October 20, 2017, Snowbird, Utah, USA. (pp. 9-16). New York, USA: ACM Digital Library
Open this publication in new window or tab >>Results from Running an Experiment as a Service Platform for Mobile Networks
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2017 (English)In: WiNTECH '17 Proceedings of the 11th Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization, New York, USA: ACM Digital Library, 2017, p. 9-16Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we present a selection from a vast range of experiments run with MONROE, our experiment as a service platform open to external researchers. We show that the platform can be used to benchmark network performance in a repeatable and controlled manner thanks to the collection of a rich set of geotagged metadata and the execution of discretionary user experiments. Indeed, with the sheer amount of data collected from 12 commercial mobile operators across Europe, MONROE offers an unprecedented opportunity to monitor, analyze and ultimately improve the status of current and future mobile broadband networks. We also show how flexibly the platform allows combining metadata and experimental data series during the experiments or by means of post-processing, and show results produced by our own experiments as well as by external research groups and developers that have been granted access to the platform

Place, publisher, year, edition, pages
New York, USA: ACM Digital Library, 2017
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-65800 (URN)10.1145/3131473.3131485 (DOI)978-1-4503-5147-8 (ISBN)
Conference
WiNTECH '17 October 20, 2017, Snowbird, Utah, USA.
Projects
MONROE (4806)
Funder
EU, Horizon 2020, 644399
Note

Del av konferensen MobiCom '17, The 23rd Annual International Conference on Mobile Computing and Networking Snowbird, Utah, USA — October 16 - 20, 2017

Available from: 2018-01-24 Created: 2018-01-24 Last updated: 2018-07-23Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0368-9221

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