Maximum harvested energy policy in full‐duplex relaying networks with SWIPT

Nguyen, Xuan-Xinh; Do, Dinh‐Thuan

doi:10.1002/dac.3359

Cited by 39 publications

(39 citation statements)

References 29 publications

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“…Following the principle of energy harvesting [14][15][16][17][18][19], the harvested power is given by…”

Section: A First Phase: Energy Harvestingmentioning

confidence: 99%

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Outage Performance Analysis of Cell-Center/Edge Users Under Two Policies of Energy Harvesting

Do¹,

Le²,

Le³

et al. 2019

ELEKTRON ELEKTROTECH

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In this paper, two energy harvesting policies deploying in cooperative non-orthogonal multiple access (NOMA) systems are considered. After period of wireless power transfer, the NOMA users including cell-edge and cell-center users simultaneously transmit the superposition coded symbols to the base station (BS). In the last time slot, the BS decodes to achieve its signal based on superposition coded symbol with corresponding power allocation factors. This paper provides exact expressions of outage probability in two schemes. Performance gap of two NOMA users can be raised by providing different power allocation factors. It is confirmed by numerical result. Distance and data rate are main factors affecting outage performance. Scheme I exhibit scenario where power beacon transmits energy signal to NOMA user while the BS feeds energy to NOMA user in Scheme II. It is shown that outage performance of Scheme I is better than that of Scheme II.

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“…Following the principle of energy harvesting [14][15][16][17][18][19], the harvested power is given by…”

Section: A First Phase: Energy Harvestingmentioning

confidence: 99%

“…In this section, the outage probability is main metric considered in our proposed model. The outage performance is defined in many works [14][15][16][17]. We now consider outage probability for such NOMA transmission as below.…”

Section: Outage Performance Analysis In Scheme Imentioning

confidence: 99%

Outage Performance Analysis of Cell-Center/Edge Users Under Two Policies of Energy Harvesting

Do¹,

Le²,

Le³

et al. 2019

ELEKTRON ELEKTROTECH

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“…Additionally, advantages of relaying networks can be implemented together with NOMA to reform hybrid scheme, namely, cooperative NOMA, in which relay serves far user with improved performance by assigning signal processing techniques including decode and forward or amplify and forward modes. In particular, a dedicated half‐duplex relay in the traditional dual‐hop cooperative relaying system to serve NOMA users .…”

Section: Introductionmentioning

confidence: 99%

Exploiting secure performance in power domain–based multiple access: Impacts of relay link/direct link and secure analysis

Nguyen

Hoang

2019

Int J Communication

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Summary A new design of secure nonorthogonal multiple access (NOMA) deployed together with cooperative relaying network is investigated in two modes including direct link and relay link. This paper proposes a mathematical analysis under secrecy considerations of a downlink two‐user NOMA systems. In particular, physical layer security of NOMA is studied in two specific metrics to achieve secure performance analysis such as the secrecy outage probability (SOP) and probability of strictly positive secrecy capacity (SPSC). It should be further explored the situation as the illegal user which is assumed to be eavesdropper at the information level, it attempts to decode the information intended to legal users while NOMA scheme is employed for legal users. The transmission techniques of NOMA equipping relaying architecture (dual‐hop transmission) have proposed due to improving the spectrum efficiency greatly compared with the traditional single‐hop networks. Finally, this study shows the advantages of NOMA over the traditional orthogonal multiple access in the studied problems analytically and numerical analysis is further provided. As important achievement, new exact and closed‐form expressions of the SOP and SPSC are derived, and they will be confirmed by simulation, ie, Monte Carlo simulations are performed to verify the proposed analytical results. Ultimately, the effects of some critical factors are studied on secure performance through these simulation results.

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“…The key idea in NOMA showed that multiple users are served in the same time slot/subcarrier/spreading code. It is shown that both energy and information can be transmitted by RF signals together, from the same received RF signals; Nguyen and Do 10 have put forward the simultaneous wireless information and power transfer (SWIPT). 2 Several parameters such as user pairing and power allocation algorithms are presented in downlink of NOMA.…”

Section: Introductionmentioning

confidence: 99%

“…The radio frequency (RF) signals in the ambient wireless have emerge as a reliable energy source apart from natural ones like vibration, wave, and solar. It is shown that both energy and information can be transmitted by RF signals together, from the same received RF signals; Nguyen and Do 10 have put forward the simultaneous wireless information and power transfer (SWIPT). A wireless power transfer is proposed as a promising EH technology in which users harvest energy from electromagnetic radiation.…”

Section: Introductionmentioning

confidence: 99%

Power allocation schemes for wireless powered NOMA systems with imperfect CSI: An application in multiple antenna–based relay

Nguyen

2018

Int J Communication

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The simultaneous wireless information and power transfer or energy harvesting (EH) can be combined in nonorthogonal multiple access (NOMA) as green applications towards 5G. This paper investigates a new cooperative EH-NOMA protocol, where the intermediate relay has not equipped the fixed power source and acts as a wireless powered relay to help signal transmission to representative weak user and strong user in NOMA. However, impacts of imperfect channel estimation contribute to outage system performance evaluations. We formulate the power resource assignment paradigms as two schemes, namely, fixed power allocation and dynamic power allocation, by considering imperfect channel state information (CSI). To solve this problem, we derive the closed-form expressions of outage probability under imperfect CSI and the power allocation constraints. The expected numerical results related to the derived expressions for the outage probability are examined that numerical and the Monte Carlo simulations are strictly matching lines. KEYWORDS energy harvesting, imperfect channel state information, NOMA, outage probability Int J Commun Syst. 2018;31:e3789.wileyonlinelibrary.com/journal/dac

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Maximum harvested energy policy in full‐duplex relaying networks with SWIPT

Cited by 39 publications

References 29 publications

Outage Performance Analysis of Cell-Center/Edge Users Under Two Policies of Energy Harvesting

Outage Performance Analysis of Cell-Center/Edge Users Under Two Policies of Energy Harvesting

Exploiting secure performance in power domain–based multiple access: Impacts of relay link/direct link and secure analysis

Power allocation schemes for wireless powered NOMA systems with imperfect CSI: An application in multiple antenna–based relay

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