Hybrid Precoding with Time-Modulated Arrays for mmWave MIMO Systems

dc.contributor.authorGONZÁLEZ-COMA, José P.; MANEIRO-CATOIRA, Roberto; CASTEDO, Luis
dc.date.accessioned2024-01-22T09:15:08Z
dc.date.available2024-01-22T09:15:08Z
dc.date.issued2018
dc.description.abstractWe consider the utilization of Time-Modulated Arrays (TMAs) as a simple and cost-effective approach to hybrid digital-analog precoding in millimeter wave (mmWave) Multiple-Input Multiple-Output (MIMO) systems. Instead of conventional Variable Phase Shifters (VPSs), our proposed TMA hybrid precoders use Radio Frequency (RF) switches followed by 1-bit VPSs in the analog part. We study the insertion losses at mmWave of a TMA Analog Precoding Network (APN) in terms of Sideband Radiation (SR) and hardware efficiency. In addition, we present different algorithms for the design of both the baseband and RF parts of a TMA hybrid precoder. The proposed methods exhibit different trade-offs between performance, complexity, and power efficiency. Finally, TMA precoders are compared to those implemented with conventional VPSs in terms of insertion losses, chip area and cost, concluding that precoding with TMAs is a competitive solution for mmWave MIMO systems.
dc.identifier.issn2169-3536
dc.identifier.urihttp://calderon.cud.uvigo.es/handle/123456789/733
dc.language.isoen
dc.publisherIEEE
dc.relation.ispartofseriesIEEE Access; 6
dc.titleHybrid Precoding with Time-Modulated Arrays for mmWave MIMO Systems
dc.typeArticle
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