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.
| Original language | English |
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| Title of host publication | 2022 IEEE Globecom Workshops (GC Wkshps) |
| Number of pages | 6 |
| Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
| Publication date | 8 Dec 2022 |
| Pages | 711-716 |
| Article number | 10008622 |
| ISBN (Print) | 978-1-6654-5976-1 |
| ISBN (Electronic) | :978-1-6654-5975-4 |
| DOIs | |
| Publication status | Published - 8 Dec 2022 |
| Event | 2022 IEEE Globecom Workshops (GC Wkshps) - Rio de Janeiro, Brazil Duration: 4 Dec 2022 → 8 Dec 2022 |
Conference
| Conference | 2022 IEEE Globecom Workshops (GC Wkshps) |
|---|---|
| Location | Rio de Janeiro, Brazil |
| Period | 04/12/2022 → 08/12/2022 |
Keywords
- Wireless communication
- Codes
- Extended reality
- Error analysis
- Heuristic algorithms
- Simulation
- Media