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dc.contributor.authorRamírez Espinosa, Pablo
dc.contributor.authorMorales-Jimenez, David
dc.contributor.authorWong, Kai Kit
dc.date.accessioned2024-10-18T10:16:41Z
dc.date.available2024-10-18T10:16:41Z
dc.date.issued2024-08-05
dc.identifier.citationP. Ramírez-Espinosa, D. Morales-Jimenez and K. -K. Wong, "A New Spatial Block-Correlation Model for Fluid Antenna Systems," in IEEE Transactions on Wireless Communications, doi: 10.1109/TWC.2024.3434509es_ES
dc.identifier.urihttps://hdl.handle.net/10481/96099
dc.description.abstractPowered by position-flexible antennas, the emerging fluid antenna system (FAS) technology is postulated as a key enabler for massive connectivity in 6G networks. The free movement of antenna elements enables the opportunistic minimization of interference, allowing several users to share the same radio channel without the need of precoding. However, the true potential of FAS is still unknown due to the extremely high spatial correlation of the wireless channel between very close-by antenna positions. To unveil the multiplexing capabilities of FAS, proper (simple yet accurate) modeling of the spatial correlation is prominently needed. Realistic classical models such as Jakes’s are prohibitively complex, rendering intractable analyses, while state-of-the-art approximations often are too simplistic and poorly accurate. Aiming to fill this gap, we here propose a general framework to approximate spatial correlation by block-diagonal matrices, motivated by the well-known block fading assumption and by statistical results on large correlation matrices. The proposed block-correlation model makes the performance analysis possible, and tightly approximates the results obtained with realistic models (Jakes’s and Clarke’s). Our framework is leveraged to analyze fluid antenna multiple access (FAMA) systems, evaluating their performance for both one- and two-dimensional fluid antennas.es_ES
dc.description.sponsorshipState Research Agency (AEI) of Spain under grant PID2020-118139RB-I0/AEI/10.13039/501100011033es_ES
dc.description.sponsorship“María Zambrano” Fellowship funded by the European Union – Next Generation EU via the Ministry of Universities of the Spanish Governmentes_ES
dc.description.sponsorshipAEI and the European Social Fund under grant RYC2020-030536-Ies_ES
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC) under Grant EP/W026813/1es_ES
dc.language.isoenges_ES
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)es_ES
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleA New Spatial Block-Correlation Model for Fluid Antenna Systemses_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1109/TWC.2024.3434509
dc.type.hasVersionVoRes_ES


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