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

2 Citationer (Scopus)


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.
Titel2022 IEEE Globecom Workshops (GC Wkshps)
Antal sider6
Publikationsdato8 dec. 2022
ISBN (Trykt)978-1-6654-5976-1
ISBN (Elektronisk):978-1-6654-5975-4
StatusUdgivet - 8 dec. 2022
Begivenhed2022 IEEE Globecom Workshops (GC Wkshps) - Rio de Janeiro, Brazil
Varighed: 4 dec. 20228 dec. 2022


Konference2022 IEEE Globecom Workshops (GC Wkshps)
LokationRio de Janeiro, Brazil


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