Improving the Performance of Cell-Edge Users in MISO-NOMA Systems Using TAS and SWIPT-Based Cooperative Transmissions

Nhu, Tri; Costa, Daniel Benevides da; Duong, Trung Q.; An, Beongku

doi:10.1109/tgcn.2017.2777510

Cited by 108 publications

(225 citation statements)

References 32 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%

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

Section: Introductionmentioning

confidence: 99%

“…The CNOMA‐SWIPT protocols presented in other works employ PS receiver architecture, whereas the works of Do et al and Kader et al employ PS/TS receiver architecture. Outage probability (OP) of a CNOMA‐SWIPT downlink transmission protocol was investigated in the work of Do et al, where a near or cell‐center user acts as a TS/PS‐based EH relay for the cell‐edge or far user. In the work of Kader et al, two novel cooperative spectrum sharing protocols by using TS‐ and PS‐based EH, respectively, were proposed, where secondary users act as EH relays for the primary user.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Kader

Uddin

Islam

et al. 2019

Trans Emerging Tel Tech

128

View full text Add to dashboard Cite

show abstract

“…Indeed, since SU has markedly more adequate channel condition, consequently, it is allowed to have a less transmit power. In contrast, WU is allowed to correspondingly have a higher transmit power, hence, its information can be conveniently decoded . It is consequently revealed that in SIC, WUs have an open nature.…”

Section: Introductionmentioning

confidence: 99%

PHY‐layer Security of MIMO‐NOMA with SWIPT

Zamanipour

2019

Internet Technology Letters

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A flexible and secure artificial noise (AN)‐aided framework is proposed for multi‐input multioutput (MIMO) nonorthogonal multiple‐access (NOMA) systems. We guarantee resource allocation in a multicluster paradigm with simultaneous wireless power and information transfer (SWIPT) exploiting the power‐splitting technique. This recourse allocation is fulfilled where: (a) the energy‐harvesting receivers do not intercept the nonrelative data; while (b) decoding the relative cell‐edge user in the same cluster. We provide closed‐form solutions, as well as proposition of the controller π ∈{πα − πκ} for the case of imperfect channel estate information (CSI). Simulation results show that our proposed framework is superior to the existing work in terms of rate enhancement and energy efficiency maximization, experiencing the acceptable complexity ≈Onitalicit()italiciN24.5.

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Two policies for wireless non‐orthogonal multiple access systems: System model and performance enhancement of far user

2020

Int J Communication

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SummaryDevice‐to‐device (D2D)‐enabled non‐orthogonal multiple access (NOMA) network is introduced as promising candidate to support massive connectivity and satisfy the high‐throughput demand. In this paper, two schemes are investigated for situations associated with D2D users and interference from traditional cellular users. The base station equipped multiple antennas is designed to exploit higher diversity gain and make full use of spectrum resources with NOMA technique. Especially, performance improvement can be achieved as enabling D2D link and signal reception of the far user (FU) on cell‐edge area. We study two policies related to downlink and uplink of such D2D NOMA system. The simulation results indicate that the improved ergodic capacity and outage performance can be achieved at FU with more antennas at the base station and higher allocated power factor. In addition, the D2D‐enabled NOMA can significantly improve the spectral efficiency.

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Improving the Performance of Cell-Edge Users in MISO-NOMA Systems Using TAS and SWIPT-Based Cooperative Transmissions

Cited by 108 publications

References 32 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

PHY‐layer Security of MIMO‐NOMA with SWIPT

Two policies for wireless non‐orthogonal multiple access systems: System model and performance enhancement of far user

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