Grant-free access schemes, capable to reduce control signaling and device complexity, are good candidates to support future massive multiple access applications. In the same direction, cell-free architectures promise to pave the way to fairness in power consumption and performance among the users. The combination of these two ingredients has the potential to interconnect a large number of low-power devices to the network. In this letter, a theoretical analysis tool for grant-free coded random access, based on stochastic geometry and density evolution, is developed in the context of cell-free architectures. In sharp contrast with the cell-based scenario, we found out that temporally repeating less packets is a valid option due to the exploitation of spatial repetitions given by the cell-free topology.
Valentini, L., Chiani, M., Paolini, E. (2024). Stochastic Geometry Design for Cell-Free Coded Random Access. IEEE COMMUNICATIONS LETTERS, 28(8), 1964-1968 [10.1109/LCOMM.2024.3420110].
Stochastic Geometry Design for Cell-Free Coded Random Access
Valentini L.;Chiani M.;Paolini E.
2024
Abstract
Grant-free access schemes, capable to reduce control signaling and device complexity, are good candidates to support future massive multiple access applications. In the same direction, cell-free architectures promise to pave the way to fairness in power consumption and performance among the users. The combination of these two ingredients has the potential to interconnect a large number of low-power devices to the network. In this letter, a theoretical analysis tool for grant-free coded random access, based on stochastic geometry and density evolution, is developed in the context of cell-free architectures. In sharp contrast with the cell-based scenario, we found out that temporally repeating less packets is a valid option due to the exploitation of spatial repetitions given by the cell-free topology.File | Dimensione | Formato | |
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Stochastic_Geometry_Design_for_Cell-Free_Coded_Random_Access.pdf
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