File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1109/TWC.2018.2803177
- Scopus: eid_2-s2.0-85044302307
- Find via
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Conference Paper: Optimal Throughput Fairness Tradeoffs for Downlink Non-Orthogonal Multiple Access over Fading Channels
Title | Optimal Throughput Fairness Tradeoffs for Downlink Non-Orthogonal Multiple Access over Fading Channels |
---|---|
Authors | |
Keywords | ergodic rate fading channel fairness Lagrangian dual decomposition Non-orthogonal multiple access orthogonal multiple access outage probability strong duality |
Issue Date | 2018 |
Citation | IEEE Transactions on Wireless Communications, 2018, v. 17, n. 6, p. 3556-3571 How to Cite? |
Abstract | Recently, non-orthogonal multiple access (NOMA) has attracted considerable interest as one of the 5G-enabling techniques. However, the users with better channel conditions in downlink communications intrinsically benefit more from NOMA than the users with worse channel conditions thanks to successive decoding, judicious designs are required to guarantee user fairness. In this paper, a two-user downlink NOMA system over fading channels is considered. For delay-tolerant transmission, the average sum rate is maximized subject to both average and peak-power constraints as well as a minimum average user rate constraint. The optimal resource allocation is obtained using the Lagrangian dual decomposition under full channel state information at the transmitter (CSIT), while an effective power allocation policy under partial CSIT is also developed based on analytical results. In parallel, for delay-limited transmission, the sum of delay-limited throughput (DLT) is maximized subject to a maximum allowable user outage constraint under full CSIT, and the analysis for the sum of DLT is also performed under partial CSIT. Furthermore, an optimal orthogonal multiple access (OMA) scheme is also studied as a benchmark to prove the superiority of NOMA over OMA under full CSIT. Finally, the theoretical analysis is verified by simulations via different tradeoffs for the average sum rate (sum-DLT) versus the minimum (maximum) average user rate (outage) requirement. |
Persistent Identifier | http://hdl.handle.net/10722/349240 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 5.371 |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Xing, Hong | - |
dc.contributor.author | Liu, Yuanawei | - |
dc.contributor.author | Nallanathan, Arumugam | - |
dc.contributor.author | Ding, Zhiguo | - |
dc.contributor.author | Poor, H. Vincent | - |
dc.date.accessioned | 2024-10-17T06:57:13Z | - |
dc.date.available | 2024-10-17T06:57:13Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | IEEE Transactions on Wireless Communications, 2018, v. 17, n. 6, p. 3556-3571 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | http://hdl.handle.net/10722/349240 | - |
dc.description.abstract | Recently, non-orthogonal multiple access (NOMA) has attracted considerable interest as one of the 5G-enabling techniques. However, the users with better channel conditions in downlink communications intrinsically benefit more from NOMA than the users with worse channel conditions thanks to successive decoding, judicious designs are required to guarantee user fairness. In this paper, a two-user downlink NOMA system over fading channels is considered. For delay-tolerant transmission, the average sum rate is maximized subject to both average and peak-power constraints as well as a minimum average user rate constraint. The optimal resource allocation is obtained using the Lagrangian dual decomposition under full channel state information at the transmitter (CSIT), while an effective power allocation policy under partial CSIT is also developed based on analytical results. In parallel, for delay-limited transmission, the sum of delay-limited throughput (DLT) is maximized subject to a maximum allowable user outage constraint under full CSIT, and the analysis for the sum of DLT is also performed under partial CSIT. Furthermore, an optimal orthogonal multiple access (OMA) scheme is also studied as a benchmark to prove the superiority of NOMA over OMA under full CSIT. Finally, the theoretical analysis is verified by simulations via different tradeoffs for the average sum rate (sum-DLT) versus the minimum (maximum) average user rate (outage) requirement. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Transactions on Wireless Communications | - |
dc.subject | ergodic rate | - |
dc.subject | fading channel | - |
dc.subject | fairness | - |
dc.subject | Lagrangian dual decomposition | - |
dc.subject | Non-orthogonal multiple access | - |
dc.subject | orthogonal multiple access | - |
dc.subject | outage probability | - |
dc.subject | strong duality | - |
dc.title | Optimal Throughput Fairness Tradeoffs for Downlink Non-Orthogonal Multiple Access over Fading Channels | - |
dc.type | Conference_Paper | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TWC.2018.2803177 | - |
dc.identifier.scopus | eid_2-s2.0-85044302307 | - |
dc.identifier.volume | 17 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 3556 | - |
dc.identifier.epage | 3571 | - |