Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems
Article
Tran, H., Phan, C. and Vien, Q. 2021. Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems. EURASIP Journal on Wireless Communications and Networking. 2021 (110), pp. 1-26. https://doi.org/10.1186/s13638-021-01981-9
Type | Article |
---|---|
Title | Performance analysis of power-splitting relaying protocol in SWIPT based cooperative NOMA systems |
Authors | Tran, H., Phan, C. and Vien, Q. |
Abstract | This paper investigates a relay assisted simultaneous wireless information and power transfer (SWIPT) for downlink in cellular systems. Cooperative non-orthogonal multiple access (C-NOMA) is employed along with power splitting protocol to enable both energy harvesting (EH) and information processing (IP). A downlink model consists of a base station (BS) and two users is considered, in which the near user (NU) is selected as a relay to forward the received signal from the BS to the far user (FU). Maximum ratio combining is then employed at the FU to combine both the signals received from the BS and NU. Closed form expressions of outage probability, throughput, ergodic rate and energy efficiency (EE) are firstly derived for the SWIPT based C-NOMA considering both scenarios of with and without direct link between the BS and FU. The impacts of EH time, EH efficiency, power-splitting ratio, source data rate and distance between different nodes on the performance are then investigated. The simulation results show that the C-NOMA with direct link achieves an outperformed performance over C-NOMA without direct link. Moreover, the performance of C-NOMA with direct link is also higher than that for OMA. Specifically, (1) the outage probability for C-NOMA in both direct and relaying link cases is always lower than that for OMA. (2) the outage probability, throughput and ergodic rate vary according to β, (3) the EE of both users can obtain in SNR range of from -10 to 5 dB and it decreases linearly as SNR increases. Numerical results are provided to verify the findings. |
Keywords | Research, Non-orthogonal multiple access (NOMA), Energy harvesting (EH), Information processing (IP), Radio-frequency (RF), Power-splitting relaying (PSR), Decode-and-forward (DF) |
Publisher | Springer International Publishing |
Journal | EURASIP Journal on Wireless Communications and Networking |
ISSN | 1687-1499 |
Publication dates | |
Online | 29 Apr 2021 |
Dec 2021 | |
Publication process dates | |
Deposited | 30 Apr 2021 |
Accepted | 06 Apr 2021 |
Output status | Published |
Publisher's version | License |
Copyright Statement | © The Author(s), 2021. Open Access |
Digital Object Identifier (DOI) | https://doi.org/10.1186/s13638-021-01981-9 |
Language | English |
https://repository.mdx.ac.uk/item/89599
Download files
64
total views22
total downloads0
views this month0
downloads this month