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Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth

Tutkimustuotosvertaisarvioitu

Standard

Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth. / Kovalchukov, Roman; Moltchanov, Dmitri; Begishev, Vyacheslav; Samuylov, Andrey; Andreev, Sergey; Koucheryavy, Yevgeni; Samouylov, Konstantin.

2018 IEEE Global Communications Conference, GLOBECOM 2018. IEEE, 2019.

Tutkimustuotosvertaisarvioitu

Harvard

Kovalchukov, R, Moltchanov, D, Begishev, V, Samuylov, A, Andreev, S, Koucheryavy, Y & Samouylov, K 2019, Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth. julkaisussa 2018 IEEE Global Communications Conference, GLOBECOM 2018. IEEE, Abu Dhabi, Yhdistyneet arabiemiirikunnat, 9/12/18. https://doi.org/10.1109/GLOCOM.2018.8647608

APA

Vancouver

Author

Kovalchukov, Roman ; Moltchanov, Dmitri ; Begishev, Vyacheslav ; Samuylov, Andrey ; Andreev, Sergey ; Koucheryavy, Yevgeni ; Samouylov, Konstantin. / Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth. 2018 IEEE Global Communications Conference, GLOBECOM 2018. IEEE, 2019.

Bibtex - Lataa

@inproceedings{6ba37d3b63bd4165a39c5666328b808a,
title = "Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth",
abstract = "The intermittent millimeter-wave radio links as a result of human-body blockage are an inherent feature of the 5G New Radio (NR) technology by 3GPP. To improve session continuity in these emerging systems, two mechanisms have recently been proposed, namely, multi-connectivity and guard bandwidth. The former allows to establish multiple spatially-diverse connections and switch between them dynamically, while the latter reserves a fraction of system bandwidth for sessions changing their state from non-blocked to blocked, which ensures that the ongoing sessions have priority over the new ones. In this paper, we assess the joint performance of these two schemes for the user- and system-centric metrics of interest. Our numerical results reveal that the multi-connectivity operation alone may not suffice to increase the ongoing session drop probability considerably. On the other hand, the use of guard bandwidth significantly improves session continuity by somewhat compromising new session drop probability and system resource utilization. Surprisingly, the 5G NR system implementing both these techniques inherits their drawbacks. However, complementing it with an initial AP selection procedure effectively alleviates these limitations by maximizing the system resource utilization, while still providing sufficient flexibility to enable the desired trade-off between new and ongoing session drop probabilities.",
author = "Roman Kovalchukov and Dmitri Moltchanov and Vyacheslav Begishev and Andrey Samuylov and Sergey Andreev and Yevgeni Koucheryavy and Konstantin Samouylov",
year = "2019",
month = "2",
day = "20",
doi = "10.1109/GLOCOM.2018.8647608",
language = "English",
booktitle = "2018 IEEE Global Communications Conference, GLOBECOM 2018",
publisher = "IEEE",

}

RIS (suitable for import to EndNote) - Lataa

TY - GEN

T1 - Improved Session Continuity in 5G NR with Joint Use of Multi-Connectivity and Guard Bandwidth

AU - Kovalchukov, Roman

AU - Moltchanov, Dmitri

AU - Begishev, Vyacheslav

AU - Samuylov, Andrey

AU - Andreev, Sergey

AU - Koucheryavy, Yevgeni

AU - Samouylov, Konstantin

PY - 2019/2/20

Y1 - 2019/2/20

N2 - The intermittent millimeter-wave radio links as a result of human-body blockage are an inherent feature of the 5G New Radio (NR) technology by 3GPP. To improve session continuity in these emerging systems, two mechanisms have recently been proposed, namely, multi-connectivity and guard bandwidth. The former allows to establish multiple spatially-diverse connections and switch between them dynamically, while the latter reserves a fraction of system bandwidth for sessions changing their state from non-blocked to blocked, which ensures that the ongoing sessions have priority over the new ones. In this paper, we assess the joint performance of these two schemes for the user- and system-centric metrics of interest. Our numerical results reveal that the multi-connectivity operation alone may not suffice to increase the ongoing session drop probability considerably. On the other hand, the use of guard bandwidth significantly improves session continuity by somewhat compromising new session drop probability and system resource utilization. Surprisingly, the 5G NR system implementing both these techniques inherits their drawbacks. However, complementing it with an initial AP selection procedure effectively alleviates these limitations by maximizing the system resource utilization, while still providing sufficient flexibility to enable the desired trade-off between new and ongoing session drop probabilities.

AB - The intermittent millimeter-wave radio links as a result of human-body blockage are an inherent feature of the 5G New Radio (NR) technology by 3GPP. To improve session continuity in these emerging systems, two mechanisms have recently been proposed, namely, multi-connectivity and guard bandwidth. The former allows to establish multiple spatially-diverse connections and switch between them dynamically, while the latter reserves a fraction of system bandwidth for sessions changing their state from non-blocked to blocked, which ensures that the ongoing sessions have priority over the new ones. In this paper, we assess the joint performance of these two schemes for the user- and system-centric metrics of interest. Our numerical results reveal that the multi-connectivity operation alone may not suffice to increase the ongoing session drop probability considerably. On the other hand, the use of guard bandwidth significantly improves session continuity by somewhat compromising new session drop probability and system resource utilization. Surprisingly, the 5G NR system implementing both these techniques inherits their drawbacks. However, complementing it with an initial AP selection procedure effectively alleviates these limitations by maximizing the system resource utilization, while still providing sufficient flexibility to enable the desired trade-off between new and ongoing session drop probabilities.

U2 - 10.1109/GLOCOM.2018.8647608

DO - 10.1109/GLOCOM.2018.8647608

M3 - Conference contribution

BT - 2018 IEEE Global Communications Conference, GLOBECOM 2018

PB - IEEE

ER -