dc.contributor.author | McWade, Stephen | |
dc.contributor.author | Flanagan, Mark | |
dc.contributor.author | Farhang, Arman | |
dc.date.accessioned | 2024-05-28T08:19:56Z | |
dc.date.available | 2024-05-28T08:19:56Z | |
dc.date.created | 28 May - 01 June | en |
dc.date.issued | 2023 | |
dc.date.submitted | 2023 | en |
dc.identifier.citation | Stephen McWade, Mark Flanagan, Arman Farhang, 'Low-Complexity Equalization and Detection for OTFS-NOMA', IEEE International Conference on Communications Workshops, 2023 | en |
dc.identifier.other | Y | |
dc.description.abstract | Orthogonal time frequency space (OTFS) modula-
tion has recently emerged as a potential 6G candidate waveform
which provides improved performance in high-mobility scenarios.
In this paper we investigate the combination of OTFS with non-
orthogonal multiple access (NOMA). Existing equalization and
detection methods for OTFS-NOMA, such as minimum-mean-
squared error with successive interference cancellation (MMSE-
SIC), suffer from poor performance and high complexity. Moti-
vated by this, in this paper we propose a low-complexity method
for equalization and detection for OTFS-NOMA. The proposed
method uses an equalizer based on the least-squares with QR
factorization (LSQR) algorithm and a novel reliability zone (RZ)
detection scheme which estimates the reliable symbols of the
users and then uses interference cancellation to remove multi-
user interference (MUI). We present numerical results which
demonstrate the superiority of our proposed method, in terms of
symbol error rate (SER), to the existing MMSE-SIC benchmark
scheme. Additionally, we present results which illustrate that a
judicious choice of RZ thresholds is important for optimizing the
performance of the proposed algorithm. | en |
dc.language.iso | en | en |
dc.rights | Y | en |
dc.title | Low-Complexity Equalization and Detection for OTFS-NOMA | en |
dc.title.alternative | IEEE International Conference on Communications | en |
dc.type | Conference Paper | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/afarhang | |
dc.identifier.rssinternalid | 256388 | |
dc.identifier.doi | http://dx.doi.org/10.48550/arXiv.2211.07388 | |
dc.rights.ecaccessrights | openAccess | |
dc.subject.TCDTheme | Telecommunications | en |
dc.subject.TCDTag | DIGITAL SIGNAL PROCESSING | en |
dc.subject.TCDTag | ELECTRONICS | en |
dc.identifier.orcid_id | 0000-0003-2083-1162 | |
dc.status.accessible | N | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | SFI/21/US/3757 | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 19/FFP/7005(T) | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 17/US/3445 | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 17/RC- PhD/3479 | en |
dc.identifier.uri | http://hdl.handle.net/2262/108516 | |