A slotted pilot-based unsourced random access scheme with a multiple-antenna receiver
buir.contributor.author | Özateş, Mert | |
buir.contributor.author | Kazemi, Mohammad | |
buir.contributor.author | Duman, Tolga Mete | |
buir.contributor.orcid | Özateş, Mert|0000-0002-2709-4225 | |
buir.contributor.orcid | Kazemi, Mohammad|0000-0001-5177-1874 | |
buir.contributor.orcid | Duman, Tolga Mete|0000-0002-5187-8660 | |
dc.citation.epage | 13 | en_US |
dc.citation.spage | 1 | |
dc.contributor.author | Özateş, Mert | |
dc.contributor.author | Kazemi, Mohammad | |
dc.contributor.author | Duman, Tolga Mete | |
dc.date.accessioned | 2024-03-21T12:59:35Z | |
dc.date.available | 2024-03-21T12:59:35Z | |
dc.date.issued | 2023-08-30 | |
dc.department | Department of Electrical and Electronics Engineering | |
dc.description.abstract | We consider unsourced random access over fading channels with a massive number of antennas at the base station, and propose a simple, yet energy-efficient solution by dividing the transmission frame into slots. We utilize non-orthogonal pilot sequences followed by a polar codeword for transmission in each slot. At the receiver side, we first detect the transmitted pilot sequences by employing a generalized orthogonal matching pursuit algorithm and utilize a linear minimum mean square error solution to estimate the channel vectors. We then perform an iterative decoding based on maximal ratio combining, single-user polar decoding, and successive interference cancellation with re-estimation of the channel vectors to recover the data bits. We also analyze the performance of the proposed scheme using normal approximations and provide a detailed complexity analysis. Numerical examples demonstrate that the proposed scheme either outperforms the existing schemes in the literature or has a competitive performance with a lower complexity. Furthermore, it is suitable for fast-fading scenarios due to its excellent performance in the short blocklength regime. | |
dc.description.provenance | Made available in DSpace on 2024-03-21T12:59:35Z (GMT). No. of bitstreams: 1 A_Slotted_Pilot_Based_Unsourced_Random_Access_Scheme_with_a_Multiple_Antenna_Receiver.pdf: 1332271 bytes, checksum: 22ad75f0eb334a100754ac04d918ba04 (MD5) Previous issue date: 2023-08-30 | en |
dc.identifier.doi | 10.1109/TWC.2023.3308218 | |
dc.identifier.eissn | 1558-2248 | |
dc.identifier.issn | 1536-1276 | |
dc.identifier.uri | https://hdl.handle.net/11693/115046 | |
dc.language.iso | en_US | |
dc.publisher | Institute of Electrical and Electronics Engineers | |
dc.relation.isversionof | https://dx.doi.org/10.1109/TWC.2023.3308218 | |
dc.rights | CCBY-NC-ND 4.0 DEED (Attribution-NonCommercial-NoDerivs 4.0 International) | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source.title | IEEE Transactions on Wireless Communications | |
dc.subject | Unsourced random access | |
dc.subject | Massive MIMO | |
dc.subject | Polar codes | |
dc.subject | Generalized orthogonal matching pursuit | |
dc.title | A slotted pilot-based unsourced random access scheme with a multiple-antenna receiver | |
dc.type | Article |
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