Power splitting protocol design for the cooperative NOMA with SWIPT

Ye, Yinghui; Li, Yongzhao; Wang, Dan; Lu, Guangyue

doi:10.1109/icc.2017.7996751

Cited by 48 publications

(54 citation statements)

References 12 publications

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“…Recently, cooperative NOMA and SWIPT are linked together (referred to as CNOMA‐SWIPT hereafter) to explore wireless networks, which are considered as both spectral and energy efficient . The existing CNOMA‐SWIPT protocols can be broadly categorized into two different types.…”

Section: Introductionmentioning

confidence: 99%

“…The existing CNOMA‐SWIPT protocols can be broadly categorized into two different types. In the first type, near users, considered as energy‐constrained nodes, act as EH relays for far users . In the second type, EH dedicated relays are used to assist the NOMA users, which is the main focus of this paper.…”

Section: Introductionmentioning

confidence: 99%

“…17 Recently, cooperative NOMA and SWIPT are linked together (referred to as CNOMA-SWIPT hereafter) to explore wireless networks, which are considered as both spectral and energy efficient. [18][19][20][21][22][23] The existing CNOMA-SWIPT protocols can be broadly categorized into two different types. In the first type, near users, considered as energy-constrained nodes, act as EH relays for far users.…”

mentioning

confidence: 99%

“…[18][19][20][21] In the second type, EH dedicated relays are used to assist the NOMA users, 22,23 which is the main focus of this paper. The CNOMA-SWIPT protocols presented in other works [18][19][20]23 employ PS receiver architecture, whereas the works of Do et al 21 and Kader et al 22 employ PS/TS receiver architecture. Outage probability (OP) of a CNOMA-SWIPT downlink transmission protocol was investigated in the work of Do et al, 21 where a near or cell-center user acts as a TS/PS-based EH relay for the cell-edge or far user.…”

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confidence: 99%

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Cooperative non‐orthogonal multiple access with SWIPT over Nakagami‐m fading channels

Kader

Uddin

Islam

et al. 2019

Trans Emerging Tel Tech

128

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To meet with both the energy and spectral efficiency, cooperative non‐orthogonal multiple access (NOMA) (termed as CNOMA) and simultaneous wireless information and power transfer (SWIPT) are integrated in this paper. Two different protocols such as CNOMA‐SWIPT‐PS and CNOMA‐SWIPT‐TS are proposed, by employing power‐splitting (PS) and time‐switching (TS) energy harvesting (EH) techniques, respectively. In the proposed protocols, a base station (BS) directly communicates with a NOMA near user, whereas the communication with a NOMA far user is performed with the assistance of an energy‐constrained relay node. The relay node harvests energy from the transmitted signal by the BS, employing PS or TS EH technique. We investigate ergodic sum capacity and outage probability of the proposed protocols along with analytical derivations over Nakagami‐m fading channels. Finally, the effectiveness of the proposed schemes over existing strategy and conventional multiple access is demonstrated through analysis and simulation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Cooperative non‐orthogonal multiple access with SWIPT over Nakagami‐m fading channels

Kader

Uddin

Islam

et al. 2019

Trans Emerging Tel Tech

128

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“…Combining NOMA with SWIPT, the work in [16] investigated a NOMA downlink scenario where SWIPT is invoked between the BS and cell-center users (relays) to assist the cell-edge users without additional energy consumption at the cell-center users, which dramatically improves the outage performance at the cell-edge users. For the same scenario, an enhanced PS protocol was proposed in [17], in which the cell-center users help the cell-edge users on the premise of successful ID of their own information. Based on the gradient decent method, the authors in [18] further developed an algorithm to find the optimal PS coefficients at the cell-center users to maximize the sum-throughput.…”

Section: Introductionmentioning

confidence: 99%

Impartial SWIPT-Assisted User Cooperation Schemes

Chen

Ding

Wang

et al. 2020

IEEE Trans. Wireless Commun.

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In this paper, we propose an impartial simultaneous wireless information and power transfer (SWIPT)assisted cooperation mechanism for a non-orthogonal multiple access (NOMA) downlink scenario.Specifically, both a cell-center user and a cell-edge user apply the power-splitting technique and utilize the harvested energy to forward the other user's information on the premise of successful decoding of their own information. Both analytical and numerical results show that the proposed impartial user cooperation mechanism (IUCM) outperforms the traditional partial cooperation mechanism in terms of outage probability, diversity order and diversity-multiplexing trade-off (DMT). For comparison, we further incorporate the IUCM into an orthogonal frequency-division multiple access (OFDMA) framework, which is shown to preserve the same diversity order, while has a worse but more flexible DMT performance in comparison with the IUCM in the NOMA framework. Although the IUCM in OFDMA has a worse outage performance, it is proved that it has the same optimal system outage probability with the IUCM in NOMA when the relaying channel between the two users is error-free.

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On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

Zhang

Serpedin

et al. 2018

Trans Emerging Tel Tech

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Nonorthogonal multiple access (NOMA), which is an effective technique to achieve high spectral efficiency, has been emerging as a candidate for the fifth‐generation multiple access. In addition, NOMA reflects a transition on the forms of power allocation comparing with the orthogonal multiple access (OMA). In this paper, two relay selection schemes are considered to evaluate the achieved performance of a NOMA‐based relaying network, ie, the max‐min relay selection (MMRS) and the two‐stage relay selection (TSRS) schemes. Exact expression analyses for the system outage probability using the MMRS and TSRS schemes are derived to evaluate the system performance under Nakagami‐m fading. The existence of the error floor, caused by the estimation error, is confirmed by the detailed analysis of the asymptotic result. By comparing NOMA with OMA, and comparing the MMRS scheme with the TSRS scheme, one can reveal that cooperative NOMA under Nakagami‐m fading and imperfect channel estimation can maintain superior performance gain than OMA.

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Power splitting protocol design for the cooperative NOMA with SWIPT

Cited by 48 publications

References 12 publications

Cooperative non‐orthogonal multiple access with SWIPT over Nakagami‐m fading channels

Cooperative non‐orthogonal multiple access with SWIPT over Nakagami‐m fading channels

Impartial SWIPT-Assisted User Cooperation Schemes

On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

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