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- Publisher Website: 10.1109/MWC.015.2200559
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Article: NOMA for Integrating Sensing and Communications Toward 6G: A Multiple Access Perspective
Title | NOMA for Integrating Sensing and Communications Toward 6G: A Multiple Access Perspective |
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Authors | |
Issue Date | 2024 |
Citation | IEEE Wireless Communications, 2024, v. 31, n. 3, p. 316-323 How to Cite? |
Abstract | This article focuses on the development of integrated sensing and communications (ISAC) from a multiple access (MA) perspective, where the idea of non-orthogonal multiple access (NOMA) is exploited for harmoniously accommodating the sensing and communication functionalities. We first reveal that the developing trend of ISAC is from orthogonality to non-orthogonality, and introduce the fundamental models of the down-link and uplink ISAC while identifying the design challenges from the MA perspective. For the downlink ISAC, we propose two novel designs, namely NOMA-empowered downlink ISAC and NOMA-inspired downlink ISAC, to effectively coordinate the inter-user interference and the sensing-to-communication interference, respectively. For the uplink ISAC, we first propose a pure-NOMA-based uplink ISAC design, where a fixed communication-to-sensing successive interference cancellation order is employed for distinguishing the mixed sensing-communication signal received over the fully shared radio resources. Then, we propose a general semi-NOMA-based uplink ISAC design, which includes the conventional orthogonal multiple access-based and pure-NOMA-based uplink ISAC as special cases, thus being capable of providing flexible resource allocation strategies between sensing and communication. Along with each proposed NOMA-ISAC design, numerical results are provided for showing the superiority over conventional ISAC designs. |
Persistent Identifier | http://hdl.handle.net/10722/349861 |
ISSN | 2023 Impact Factor: 10.9 2023 SCImago Journal Rankings: 5.926 |
DC Field | Value | Language |
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dc.contributor.author | Mu, Xidong | - |
dc.contributor.author | Wang, Zhaolin | - |
dc.contributor.author | Liu, Yuanwei | - |
dc.date.accessioned | 2024-10-17T07:01:28Z | - |
dc.date.available | 2024-10-17T07:01:28Z | - |
dc.date.issued | 2024 | - |
dc.identifier.citation | IEEE Wireless Communications, 2024, v. 31, n. 3, p. 316-323 | - |
dc.identifier.issn | 1536-1284 | - |
dc.identifier.uri | http://hdl.handle.net/10722/349861 | - |
dc.description.abstract | This article focuses on the development of integrated sensing and communications (ISAC) from a multiple access (MA) perspective, where the idea of non-orthogonal multiple access (NOMA) is exploited for harmoniously accommodating the sensing and communication functionalities. We first reveal that the developing trend of ISAC is from orthogonality to non-orthogonality, and introduce the fundamental models of the down-link and uplink ISAC while identifying the design challenges from the MA perspective. For the downlink ISAC, we propose two novel designs, namely NOMA-empowered downlink ISAC and NOMA-inspired downlink ISAC, to effectively coordinate the inter-user interference and the sensing-to-communication interference, respectively. For the uplink ISAC, we first propose a pure-NOMA-based uplink ISAC design, where a fixed communication-to-sensing successive interference cancellation order is employed for distinguishing the mixed sensing-communication signal received over the fully shared radio resources. Then, we propose a general semi-NOMA-based uplink ISAC design, which includes the conventional orthogonal multiple access-based and pure-NOMA-based uplink ISAC as special cases, thus being capable of providing flexible resource allocation strategies between sensing and communication. Along with each proposed NOMA-ISAC design, numerical results are provided for showing the superiority over conventional ISAC designs. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Wireless Communications | - |
dc.title | NOMA for Integrating Sensing and Communications Toward 6G: A Multiple Access Perspective | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/MWC.015.2200559 | - |
dc.identifier.scopus | eid_2-s2.0-85147265128 | - |
dc.identifier.volume | 31 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | 316 | - |
dc.identifier.epage | 323 | - |
dc.identifier.eissn | 1558-0687 | - |