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Quantifying the Impact of Guard Capacity on Session Continuity in 3GPP New Radio Systems

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Quantifying the Impact of Guard Capacity on Session Continuity in 3GPP New Radio Systems. / Begishev, Vyacheslav; Moltchanov, Dmitri; Sopin, Eduard; Samuylov, Andrey; Andreev, Sergey; Koucheryavy, Yevgeni; Samouylov, K.

In: IEEE Transactions on Vehicular Technology, 21.10.2019.

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Begishev, Vyacheslav ; Moltchanov, Dmitri ; Sopin, Eduard ; Samuylov, Andrey ; Andreev, Sergey ; Koucheryavy, Yevgeni ; Samouylov, K. / Quantifying the Impact of Guard Capacity on Session Continuity in 3GPP New Radio Systems. In: IEEE Transactions on Vehicular Technology. 2019.

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@article{9a597fe9c74d4a2c81734dd42d471678,
title = "Quantifying the Impact of Guard Capacity on Session Continuity in 3GPP New Radio Systems",
abstract = "Dynamic blockage of millimeter-wave (mmWave) radio propagation paths by dense moving crowds calls for advanced techniques to preserve session continuity in the emerging New Radio (NR) systems. To further improve user performance by balancing the new and ongoing session drop probabilities, we investigate the concept of guard capacity – reserving a fraction of radio resources at the NR base stations exclusively for the sessions already accepted for service. To this aim, we develop a detailed mathematical framework that takes into account the key effects in mmWave systems, including the heights of communicating entities, blocker geometry and mobility, modulation and coding schemes and antenna array geometry, as well as radio propagation and queuing specifics. Using our framework, which enables sessions to change their resource requirements during service, we demonstrate that reserving even a small fraction of bandwidth (less than 10{\%}) exclusively for the sessions already accepted by the system allows to enhance session continuity at the expense of a slight growth in the new session drop probability as well as a small decrease in the resource utilization (approximately 5–7{\%}). Furthermore, guard capacity is shown to perform better in overloaded conditions and with sessions having high data rate requirements, thus making it particularly useful for the NR systems. Our results indicate that guard capacity is a viable option for improving session continuity that can be used by the network operators in combination with other techniques, such as multi-connectivity, to maintain user experience.",
keywords = "3GPP, Antenna arrays, Geometry, Resource management, OFDM, Performance gain, Stochastic processes",
author = "Vyacheslav Begishev and Dmitri Moltchanov and Eduard Sopin and Andrey Samuylov and Sergey Andreev and Yevgeni Koucheryavy and K. Samouylov",
note = "EXT={"}Samuylov, Andrey{"}",
year = "2019",
month = "10",
day = "21",
doi = "10.1109/TVT.2019.2948702",
language = "English",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
publisher = "Institute of Electrical and Electronics Engineers",

}

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TY - JOUR

T1 - Quantifying the Impact of Guard Capacity on Session Continuity in 3GPP New Radio Systems

AU - Begishev, Vyacheslav

AU - Moltchanov, Dmitri

AU - Sopin, Eduard

AU - Samuylov, Andrey

AU - Andreev, Sergey

AU - Koucheryavy, Yevgeni

AU - Samouylov, K.

N1 - EXT="Samuylov, Andrey"

PY - 2019/10/21

Y1 - 2019/10/21

N2 - Dynamic blockage of millimeter-wave (mmWave) radio propagation paths by dense moving crowds calls for advanced techniques to preserve session continuity in the emerging New Radio (NR) systems. To further improve user performance by balancing the new and ongoing session drop probabilities, we investigate the concept of guard capacity – reserving a fraction of radio resources at the NR base stations exclusively for the sessions already accepted for service. To this aim, we develop a detailed mathematical framework that takes into account the key effects in mmWave systems, including the heights of communicating entities, blocker geometry and mobility, modulation and coding schemes and antenna array geometry, as well as radio propagation and queuing specifics. Using our framework, which enables sessions to change their resource requirements during service, we demonstrate that reserving even a small fraction of bandwidth (less than 10%) exclusively for the sessions already accepted by the system allows to enhance session continuity at the expense of a slight growth in the new session drop probability as well as a small decrease in the resource utilization (approximately 5–7%). Furthermore, guard capacity is shown to perform better in overloaded conditions and with sessions having high data rate requirements, thus making it particularly useful for the NR systems. Our results indicate that guard capacity is a viable option for improving session continuity that can be used by the network operators in combination with other techniques, such as multi-connectivity, to maintain user experience.

AB - Dynamic blockage of millimeter-wave (mmWave) radio propagation paths by dense moving crowds calls for advanced techniques to preserve session continuity in the emerging New Radio (NR) systems. To further improve user performance by balancing the new and ongoing session drop probabilities, we investigate the concept of guard capacity – reserving a fraction of radio resources at the NR base stations exclusively for the sessions already accepted for service. To this aim, we develop a detailed mathematical framework that takes into account the key effects in mmWave systems, including the heights of communicating entities, blocker geometry and mobility, modulation and coding schemes and antenna array geometry, as well as radio propagation and queuing specifics. Using our framework, which enables sessions to change their resource requirements during service, we demonstrate that reserving even a small fraction of bandwidth (less than 10%) exclusively for the sessions already accepted by the system allows to enhance session continuity at the expense of a slight growth in the new session drop probability as well as a small decrease in the resource utilization (approximately 5–7%). Furthermore, guard capacity is shown to perform better in overloaded conditions and with sessions having high data rate requirements, thus making it particularly useful for the NR systems. Our results indicate that guard capacity is a viable option for improving session continuity that can be used by the network operators in combination with other techniques, such as multi-connectivity, to maintain user experience.

KW - 3GPP

KW - Antenna arrays

KW - Geometry

KW - Resource management

KW - OFDM

KW - Performance gain

KW - Stochastic processes

U2 - 10.1109/TVT.2019.2948702

DO - 10.1109/TVT.2019.2948702

M3 - Article

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

ER -