Enriched HARQ Feedback for Link Adaptation in 6G: Optimizing Uplink Overhead for Enhanced Downlink Spectral Efficiency

Conventional hybrid automatic repeat request (HARQ) feedback uses a single-bit acknowledgment, ensuring reliability but lacking the detail required for effective link adaptation (LA) during retransmissions. To address this, we introduce an enriched HARQ feedback (EHF) framework that goes beyond reli...

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Bibliographic Details
Published in:	IEEE access Vol. 13; pp. 138215 - 138234
Main Authors:	Mazumdar, Aritra, Amiri, Abolfazl, Paris, Stefano, Pedersen, Klaus I., Adeogun, Ramoni
Format:	Journal Article
Language:	English
Published:	Piscataway IEEE 2025 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	6G mobile communication Adaptation adaptive quantization Automatic repeat request Decoding delta MCS dense urban-macro Downlinking Effectiveness Efficiency Encoding enriched HARQ Feedback Flexible feedback FTP3 learning-driven adaptive quantization link adaptation Measurement Modulation Quantization (signal) Reliability Signal to noise ratio Spectral efficiency system-level simulations Uplink Uplinking
ISSN:	2169-3536, 2169-3536
Online Access:	Get full text
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