An ODMA-based unsourced random access scheme with a multiple antenna receiver
File(s)
Author(s)
Ozates, Mert
Kazemi, Mohammad
Duman, Tolga M
Type
Conference Paper
Abstract
We investigate the unsourced random access scheme assuming that the base station is equipped with multiple antennas, and propose a high-performing solution utilizing on-off-division multiple access. We assume that each user spreads its pilot sequence and polar codeword to the pilot and data parts of the transmission frame, respectively, based on a transmission pattern. The iterative receiver operation consists of pilot and pattern detection followed by channel vector and symbol estimation, polar decoding, and successive interference cancellation. Numerical findings demonstrate that the proposed scheme has superior performance compared to the state-of-the-art in various antenna settings.
Date Issued
2025-03-11
Date Acceptance
2024-12-01
Citation
GLOBECOM 2024 - 2024 IEEE Global Communications Conference, 2025, pp.1857-1862
ISSN
2334-0983
Publisher
IEEE
Start Page
1857
End Page
1862
Journal / Book Title
GLOBECOM 2024 - 2024 IEEE Global Communications Conference
Copyright Statement
© 2024, IEEE. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
License URL
Source
GLOBECOM 2024 - 2024 IEEE Global Communications Conference
Publication Status
Published
Start Date
2024-12-08
Finish Date
2024-12-12
Coverage Spatial
Cape Town, South Africa