Performance-Complexity Trade-Off for Low-Complexity MIMO Detection: simplified BP vs. EP Receivers

In this study, we intend to make an in-depth investigation of the performance-complexity trade-off of low complexity Multiple-Input Multiple-Output (MIMO) signal detection based on message passing algorithms. Several detection algorithms such as Belief Propagation (BP) and Expectation Propagation (E...

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Veröffentlicht in:IEEE Vehicular Technology Conference S. 1 - 7
Hauptverfasser: Mekhiche, Adam, Cipriano, Antonio Maria, Poulliat, Charly
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.06.2022
Schlagworte:
Approximation algorithms
Belief Propagation
Complexity theory
Expectation Propagation
Interference cancellation
Maximum A Posteriori
Multiple-Input Multiple-Output
Parallel Interference Cancellation
Precoding
QR factorisation
Receivers
Symbols
Vehicular and wireless technologies
ISSN:2577-2465
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Beschreibung
Zusammenfassung:In this study, we intend to make an in-depth investigation of the performance-complexity trade-off of low complexity Multiple-Input Multiple-Output (MIMO) signal detection based on message passing algorithms. Several detection algorithms such as Belief Propagation (BP) and Expectation Propagation (EP) have been proposed to approximate symbol Maximum A Posteriori (MAP) for high dimensional signaling. We propose a thorough examination of those algorithms and some of their low-complexity versions, through a complexity/performance trade-off analysis to identify modes of operation depending on the number of antennas and constellation order. Finally, we propose a new simplified BP detection scheme, which combines the advantages of QR precoding and Interference Cancellation (IC).
ISSN:2577-2465
DOI:10.1109/VTC2022-Spring54318.2022.9860352