Enhanced Link Adaptation for Extended Reality Code Block Group based HARQ Transmissions

Pouria Paymard, Abolfazl Amiri, Troels E. Kolding, Klaus I. Pedersen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

11 Citationer (Scopus)

Abstract

Extended Reality (XR) is one of the most important media applications in $5^{\mathrm{t}\mathrm{h}}$ Generation (5G) and 5G-Advanced. XR traffic is characterized by high data rates with bounded latency constraints, which is challenging for bandwidth-constrained wireless systems. In this paper, we propose two new low-complexity enhanced Outer Loop Link Adaptation (eOLLA) algorithms that significantly improve the downlink system capacity in terms of satisfied XR users. The algorithms exploit the Code Block Group (CBG)-based Hybrid Automatic Repeat reQuest (HARQ) multi-bit feedback for minimizing the radio resource utilization in retransmissions by controlling the first and second block error operation points. Evaluation by means of both analytical assessment and realistic system-level simulations verifies that the proposed eOLLA algorithms increase system capacity by up to 67% compared to known OLLA algorithms with traditional transport block based HARQ.
OriginalsprogEngelsk
Titel2022 IEEE Globecom Workshops (GC Wkshps)
Antal sider6
ForlagIEEE (Institute of Electrical and Electronics Engineers)
Publikationsdato8 dec. 2022
Sider711-716
Artikelnummer10008622
ISBN (Trykt)978-1-6654-5976-1
ISBN (Elektronisk):978-1-6654-5975-4
DOI
StatusUdgivet - 8 dec. 2022
Begivenhed2022 IEEE Globecom Workshops (GC Wkshps) - Rio de Janeiro, Brazil
Varighed: 4 dec. 20228 dec. 2022

Konference

Konference2022 IEEE Globecom Workshops (GC Wkshps)
LokationRio de Janeiro, Brazil
Periode04/12/202208/12/2022

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