eprintid: 10061125
rev_number: 17
eprint_status: archive
userid: 608
dir: disk0/10/06/11/25
datestamp: 2018-11-09 10:52:24
lastmod: 2021-10-10 22:36:20
status_changed: 2018-11-09 10:52:24
type: article
metadata_visibility: show
creators_name: Wei, Z
creators_name: Zhu, X
creators_name: Sun, S
creators_name: Wang, J
creators_name: Hanzo, L
title: Energy-efficient full-duplex cooperative nonorthogonal multiple access
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: NOMA,Interference,Throughput,Signal to noise ratio,Silicon carbide,Power demand,Relays
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The full-duplex (FD) cooperative nonorthogonal multiple access (NOMA) achieves a superior throughput over the conventional half-duplex (HD) cooperative NOMA, wherein the strong users (SUs) with good channel conditions can act as an FD relay node for the weak users with poor channel conditions. However, the energy efficiency (EE) of a cooperative NOMA may be degraded due to the additional power consumption incurred at the SUs. We are, therefore, motivated to investigate the EE maximization problem of an FD cooperative NOMA system. More importantly, we investigate the 'signal-to-inference-noise ratio gap reversal' problem of cooperative NOMA systems, which imposes successive interference cancellation (SIC) performance degradation at the SUs. This problem has not been documented in the existing cooperative NOMA literature. A low-complexity algorithm is proposed for maximizing the system's EE while guaranteeing a successful SIC operation. Our numerical results show that the proposed algorithm achieves both a higher EE and throughput over the existing HD cooperative NOMA and nonadaptive FD cooperative NOMA. More importantly, the proposed scheme guarantees a successful SIC operation at the SUs.
date: 2018-10-01
date_type: published
official_url: http://doi.org/10.1109/TVT.2018.2864545
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1600113
doi: 10.1109/TVT.2018.2864545
lyricists_name: Wei, Zhongxiang
lyricists_id: ZWEIX99
actors_name: Bracey, Alan
actors_id: ABBRA90
actors_role: owner
full_text_status: public
publication: IEEE Transactions on Vehicular Technology
volume: 67
number: 10
pagerange: 10123-10128
issn: 0018-9545
citation:        Wei, Z;    Zhu, X;    Sun, S;    Wang, J;    Hanzo, L;      (2018)    Energy-efficient full-duplex cooperative nonorthogonal multiple access.                   IEEE Transactions on Vehicular Technology , 67  (10)   pp. 10123-10128.    10.1109/TVT.2018.2864545 <https://doi.org/10.1109/TVT.2018.2864545>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10061125/1/NOMA_10_double.pdf