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Article

Leveraging Context-Triggered Measurements to Characterize LTE Handover Performance

Authors:

Ashkan Nikravesh,

Z. Morley MaoAuthors Info & Claims

Passive and Active Measurement: 20th International Conference, PAM 2019, Puerto Varas, Chile, March 27–29, 2019, Proceedings

Pages 3 - 17

https://doi.org/10.1007/978-3-030-15986-3_1

Published: 27 March 2019 Publication History

Abstract

In cellular networks, handover plays a vital role in supporting mobility and connectivity. Traditionally, handovers in a cellular network focus on maintaining continuous connectivity for legacy voice calls. However, there is a poor understanding of how today’s handover strategies impact the network performance, especially for applications that require reliable Internet connectivity.

In this work, using a newly designed context-triggered measurement framework, we carry out the first comprehensive measurement study in LTE networks on how handover decisions implemented by carriers impact network layer performance. We find that the interruption in connectivity during handover is minimal, but in 43% of cases the end-to-end throughput degrades after the handover. The cause is that the deployed handover policy uses statically configured signal strength threshold as the key factor to decide handover and focuses on improving signal strength which by itself is an imperfect metric for performance. We propose that handover decision strategies trigger handover based on predicted performance considering factors such as cell load along with application preference.

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Cited By

Ghoshal MKhan IKong ZDinh PMeng JHu YKoutsonikolas DMontpetit MLeivadeas AUhlig SJaved M(2023)Performance of Cellular Networks on the WheelsProceedings of the 2023 ACM on Internet Measurement Conference10.1145/3618257.3624814(678-695)Online publication date: 24-Oct-2023
https://dl.acm.org/doi/10.1145/3618257.3624814

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Published In

cover image Guide Proceedings

Passive and Active Measurement: 20th International Conference, PAM 2019, Puerto Varas, Chile, March 27–29, 2019, Proceedings

Mar 2019

320 pages

ISBN:978-3-030-15985-6

DOI:10.1007/978-3-030-15986-3

Editors:
David Choffnes
Northeastern University, Boston, MA, USA
,
Marinho Barcellos
Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil

© Springer Nature Switzerland AG 2019.

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Springer-Verlag

Berlin, Heidelberg

Publication History

Published: 27 March 2019

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Cited By

Ghoshal MKhan IKong ZDinh PMeng JHu YKoutsonikolas DMontpetit MLeivadeas AUhlig SJaved M(2023)Performance of Cellular Networks on the WheelsProceedings of the 2023 ACM on Internet Measurement Conference10.1145/3618257.3624814(678-695)Online publication date: 24-Oct-2023
https://dl.acm.org/doi/10.1145/3618257.3624814

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