An efficient hybrid energy harvesting protocol for cooperative NOMA systems: Error and outage performance

Khennoufa, Faical; Khelil, Abdellatif; Rabie, Khaled M.; Kaya, Hakan; Li, Xingwang

doi:10.1016/j.phycom.2023.102061

Cited by 8 publications

(1 citation statement)

References 65 publications

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“…Notably, 5G/6G users are already equipped with affordable energy harvesting (EH) circuits [5, 6]. Interestingly, the literature has focused only on the linear EH (lEH) characteristics needed to analyze basic system performance [7–12]. However, EH circuits comprise non‐linear components, such as capacitors, diodes, and inductors.…”

Section: Introductionmentioning

confidence: 99%

Nonorthogonal multiple access multiple input multiple output communications with harvested energy: Performance evaluation

Le‐Thanh,

Ho‐Van

2023

ETRI Journal

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This paper demonstrates improved throughput and energy efficiency of wireless communications by exploiting nonorthogonal multiple access (NOMA), multiple input–multiple output (MIMO), and radio frequency energy harvesting (EH) technologies. To assess the performance of NOMA MIMO communications with EH (MMe), we consider the nonlinear characteristics of EH devices and propose explicit expressions for throughput and outage probability. Based on our results, the system performance is significantly mitigated by EH nonlinearity and is considerably improved by increasing the number of antennas. Additionally, by appropriately adjusting the system parameters, our NOMA MMe innovation can avert complete outages while optimizing system performance. Moreover, the results demonstrate the superiority of the NOMA MMe over its orthogonal multiple access MMe counterparts.

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Section: Introductionmentioning

confidence: 99%

Nonorthogonal multiple access multiple input multiple output communications with harvested energy: Performance evaluation

Le‐Thanh,

Ho‐Van

2023

ETRI Journal

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Performance of SWIPT‐Assisted CNOMA System With P‐CSI User Selection Under Nakagami‐m Fading

Parida,

Kumar,

Das

2024

Trans Emerging Tel Tech

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This paper focuses on the performance investigation of a cooperative non‐orthogonal multiple access (CNOMA) system consisting of a single base station (BS), multiple near users, and a single far user. The near users are energy‐constrained and harvest energy using the simultaneous wireless information and power transfer (SWIPT) technique. The BS uses a partial‐channel state information (P‐CSI) scheme to select a near user. The BS broadcasts the superimposed near users' and far user's signals. The selected near user performs successive interference cancellation (SIC) to detect the data. It uses the harvested energy to forward the far user data using the decode‐and‐forward protocol. The Nakagami‐m fading environment is considered for the analysis of the system in terms of outage probability, throughput, and energy efficiency. We derive closed‐form expressions for the far and the selected near users. We validate the results obtained using these expressions with simulation results. Also, we compare different user selection schemes existing in the literature with P‐CSI. P‐CSI is observed to outperform some of these schemes.

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Sum-rate maximization for a distributed space-time block code-aided cooperative NOMA with energy harvesting

Alamu,

Olwal,

Djouani

2024

Wireless Netw

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In this paper, we exploit the spatial and transmission diversities in cooperative non-orthogonal multiple access (C-NOMA) networks to improve the system sum-rate. To achieve this, we propose a user-pairing scheme where near-field user pairs serve as relays for user pairs in the far-field region. Based on this pairing scheme, we incorporate a space-time block code transmission technique at the near-field user pairs to maximize the transmission diversity in the cooperative phase. Moreover, we consider a non-linear energy harvesting model at the near-field user pair to alleviate the problem of energy consumption during the cooperative transmission phase. Further to this, we formulate a sum-rate maximization problem that is addressed from the viewpoint of joint power allocation factor and power splitting ratio optimization. We develop a low-computational iterative algorithm based on the concepts of the Stackelberg game and the Nash bargaining solution. We benchmark our findings with different scenarios, such as energy harvesting C-NOMA with a fixed power allocation factor and power splitting ratio, energy harvesting C-NOMA without STBC, non-cooperative NOMA, and orthogonal multiple access. The results obtained via simulations outperform the benchmark schemes.

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An efficient hybrid energy harvesting protocol for cooperative NOMA systems: Error and outage performance

Cited by 8 publications

References 65 publications

Nonorthogonal multiple access multiple input multiple output communications with harvested energy: Performance evaluation

Nonorthogonal multiple access multiple input multiple output communications with harvested energy: Performance evaluation

Performance of SWIPT‐Assisted CNOMA System With P‐CSI User Selection Under Nakagami‐m Fading

Sum-rate maximization for a distributed space-time block code-aided cooperative NOMA with energy harvesting

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