Integrated Access and Backhaul in Millimeter-Wave Cellular: Benefits and Challenges

Yekaterina Sadovaya; Dmitri Moltchanov; Wei Mao; Oner Orhan; Shu Ping Yeh; Hosein Nikopour; Shilpa Talwar; Sergey Andreev

doi:10.1109/MCOM.004.2101082

Integrated Access and Backhaul in Millimeter-Wave Cellular: Benefits and Challenges

Yekaterina Sadovaya, Dmitri Moltchanov, Wei Mao, Oner Orhan, Shu Ping Yeh, Hosein Nikopour, Shilpa Talwar, Sergey Andreev

Sähkötekniikka

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

28 Sitaatiot (Scopus)

76 Lataukset (Pure)

Abstrakti

The recently proposed NR-ready integrated access and backhaul (IAB) architecture promises to bring a cost-efficient deployment solution for both coverage extension and capacity boosting in the emerging 5G/5G+ systems. While its impact on the coverage extension was thoroughly addressed in the literature, the effect of advanced functionalities such as multihop, multi-connectivity, and multi-beam operations on the throughput remained unclear. We review and characterize the system-level impact of these capabilities on the performance of self-backhauled IAB systems operating in half-duplex mode and utilizing millimeter-wave (mmWave) technology across both access and backhaul. Our results indicate that the throughput gain of multihopping and multi-beaming is significant even without multi-connectivity operation. Another important lesson is that in all-mmWave systems with link blockage, multi-connectivity with link switching allows achieving self-load balancing. Finally, we outline future research directions.

Alkuperäiskieli	Englanti
Sivut	81-86
Sivumäärä	6
Julkaisu	IEEE Communications Magazine
Vuosikerta	60
Numero	9
DOI - pysyväislinkit	https://doi.org/10.1109/MCOM.004.2101082
Tila	Julkaistu - 1 syysk. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Julkaisufoorumi-taso

Jufo-taso 2

!!ASJC Scopus subject areas

Computer Science Applications
Computer Networks and Communications
Electrical and Electronic Engineering

Pääsy asiakirjaan

10.1109/MCOM.004.2101082

Integrated Access and Backhaul in Millimeter-Wave
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Accepted author manuscript, 1,1 MBLisenssi: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202212018803Lisenssi: Unspecified

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abstract = "The recently proposed NR-ready integrated access and backhaul (IAB) architecture promises to bring a cost-efficient deployment solution for both coverage extension and capacity boosting in the emerging 5G/5G+ systems. While its impact on the coverage extension was thoroughly addressed in the literature, the effect of advanced functionalities such as multihop, multi-connectivity, and multi-beam operations on the throughput remained unclear. We review and characterize the system-level impact of these capabilities on the performance of self-backhauled IAB systems operating in half-duplex mode and utilizing millimeter-wave (mmWave) technology across both access and backhaul. Our results indicate that the throughput gain of multihopping and multi-beaming is significant even without multi-connectivity operation. Another important lesson is that in all-mmWave systems with link blockage, multi-connectivity with link switching allows achieving self-load balancing. Finally, we outline future research directions.",

author = "Yekaterina Sadovaya and Dmitri Moltchanov and Wei Mao and Oner Orhan and Yeh, {Shu Ping} and Hosein Nikopour and Shilpa Talwar and Sergey Andreev",

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T2 - Benefits and Challenges

AU - Sadovaya, Yekaterina

AU - Moltchanov, Dmitri

AU - Mao, Wei

AU - Orhan, Oner

AU - Yeh, Shu Ping

AU - Nikopour, Hosein

AU - Talwar, Shilpa

AU - Andreev, Sergey

PY - 2022/9/1

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AB - The recently proposed NR-ready integrated access and backhaul (IAB) architecture promises to bring a cost-efficient deployment solution for both coverage extension and capacity boosting in the emerging 5G/5G+ systems. While its impact on the coverage extension was thoroughly addressed in the literature, the effect of advanced functionalities such as multihop, multi-connectivity, and multi-beam operations on the throughput remained unclear. We review and characterize the system-level impact of these capabilities on the performance of self-backhauled IAB systems operating in half-duplex mode and utilizing millimeter-wave (mmWave) technology across both access and backhaul. Our results indicate that the throughput gain of multihopping and multi-beaming is significant even without multi-connectivity operation. Another important lesson is that in all-mmWave systems with link blockage, multi-connectivity with link switching allows achieving self-load balancing. Finally, we outline future research directions.

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Integrated Access and Backhaul in Millimeter-Wave Cellular: Benefits and Challenges

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!!ASJC Scopus subject areas

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