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UE Performance in a 5G Multi-connectivity UDN City Scenario
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
Abstract [en]

Multi-connectivity and network densification are two solutions intended to enhance user throughput and reliability. These solutions are critical since 5G NR uses a wide range of frequency bands, which exhibit different varying radio coverage characteristics. This work studies the user equipment (UE) performance using multi-connectivity within an ultra-dense network (UDN) deployed in an urban city environment. By being connected to more than one access node simultaneously, the UE should benefit from increased reliability and data rates at the expense of a potentially increased power consumption. In this letter, we have constructed an urban city environment and a context-aware UE power consumption model. The performance of the UE is assessed with an uplink power control scheme for multi-connectivity and a novel multi-connectivity scheme is proposed. Our simulation results show that dual-connectivity increases performance by up to 44% and 27% in average downlink and uplink throughput, respectively. Similarly, tri-connectivity does the same by up to 45% and 25%. At mid load (forty-five users), the average increase in UE power consumption compared to single-connectivity is 25% and 60% for dual-connectivity and tri-connectivity, respectively. Dual-connectivity increases global UE energy efficiency by up to 30%. Within an urban environment, dual-connectivity decreases the RLF rate by 20% compared to single-connectivity for high speed users.

Place, publisher, year, edition, pages
2019. , p. 84
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:ltu:diva-75994OAI: oai:DiVA.org:ltu-75994DiVA, id: diva2:1351287
External cooperation
Ericsson
Subject / course
Student thesis, at least 30 credits
Educational program
Computer Science and Engineering, master's level (120 credits)
Presentation
2019-06-19, Forum, Laboratorgränd, Skellefteå, 16:29 (English)
Supervisors
Examiners
Projects
European Erasmus Mundus programme PERCCOM - PERvasive Computing & COMmunications
Note

Presentation done within the 5th PERCCOM Summer School that took place in Skellefteå. 

Available from: 2019-09-17 Created: 2019-09-13 Last updated: 2019-09-17Bibliographically approved

Open Access in DiVA

fulltext(4041 kB)14 downloads
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File name FULLTEXT02.pdfFile size 4041 kBChecksum SHA-512
6412db1805815a45aac22740ed6a2f8f4ea7a33b976f93c389a3cfc9aebd9b3cb73aa75bec0a7ad8f20bec4ae177068b1759c7848f7a09b19c2688eaeb2f5ba1
Type fulltextMimetype application/pdf

Other links

https://lutpub.lut.fi/handle/10024/159918

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
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Output format
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