Abstract | ||
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In this paper, we propose a novel soft-output multi-user detector for non-coherent multiple access with Grassmannian signaling under Rayleigh block fading. Our detector is based on expectation propagation (EP) approximate inference and has polynomial complexity in the number of users. A simplified version of this scheme coincides with a scheme based on soft minimum-mean-square-error (MMSE) estimation and successive interference cancellation (SIC). Both schemes, especially EP, produce accurate approximates of the true posterior. They outperform a baseline decoder based on projecting the received signal onto the subspace orthogonal to the interference in terms of both hard-detected symbol error rate and coded bit error rate. |
Year | DOI | Venue |
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2019 | 10.1109/IEEECONF44664.2019.9049073 | CONFERENCE RECORD OF THE 2019 FIFTY-THIRD ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS |
Keywords | DocType | ISSN |
non-coherent communications, multiple access, expectation propagation, Grassmannian constellations | Conference | 1058-6393 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Khac-Hoang Ngo | 1 | 13 | 1.79 |
Maxime Guillaud | 2 | 315 | 30.64 |
Alexis Decurninge | 3 | 31 | 7.78 |
Sheng Yang | 4 | 286 | 33.29 |
Subrata Sarkar | 5 | 7 | 2.78 |
Philip Schniter | 6 | 1620 | 93.74 |