Link Adaptation Algorithm for Optimal Modulation and Coding Selection in 5G and Beyond Systems

Link adaptation is fundamental in managing spectrum resources efficiently and is proven to be fundamental in the overall system operation and performance boost. The aim of this paper is to propose and characterize a novel algorithm based on the proportional-integral-derivative (PID) controller princ...

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Veröffentlicht in:IEEE International Conference on Communications (2003) S. 5279 - 5284
Hauptverfasser: Nicolini, Andrea, Icolari, Vincenzo, Dardari, Davide
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 28.05.2023
Schlagworte:
5G base stations
5G mobile communication
BLER
Downlink
Heuristic algorithms
Link adaptation
MCS
Modulation
PID controller
Spectral efficiency
Systems operation
Throughput
ISSN:1938-1883
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Zusammenfassung:Link adaptation is fundamental in managing spectrum resources efficiently and is proven to be fundamental in the overall system operation and performance boost. The aim of this paper is to propose and characterize a novel algorithm based on the proportional-integral-derivative (PID) controller principles and block error rate (BLER) target for modulation and coding scheme (MCS) selection applied to the latest mobile telecommunication standards. Tests were conducted in a laboratory-level 5G system where, by means of a channel emulator, downlink performance for a hotspot-like scenario is evaluated. We show how the proposed PID link adaptation algorithm reacts to the downlink channel variations, and hence ensures convergence to the target BLER and boosts the system throughput, in comparison with traditional MCS selection and reference adaptation algorithms.
ISSN:1938-1883
DOI:10.1109/ICC45041.2023.10279293