Application of NOMA in Wireless System with Wireless Power Transfer Scheme: Outage and Ergodic Capacity Performance Analysis

Do, Dinh‐Thuan; Le, Chi‐Bao

doi:10.3390/s18103501

Cited by 57 publications

(69 citation statements)

References 27 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%

“…Compared to using traditional batteries in terms of batteries replacement and batteries external recharging, energy harvesting can exhibit essentially limitless energy. Therefore, to enhance spectrum efficiency and prolong the lifetime of the system, NOMA networks with energy-limited devices need to employ the efficient integration of energy harvesting with NOMA [19]- [21]. However, malicious energy harvesting receivers (EHRs) may exist and intercept the confidential transmitted information signals.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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%

Section: Introductionmentioning

confidence: 99%

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

Do¹,

Le²,

Le³

et al. 2019

ELEKTRON ELEKTROTECH

Self Cite

View full text Add to dashboard Cite

show abstract

“…Unlike the well-known water-filling scheme, NOMA intends to deliver higher power to the users who meet weaker channel conditions, and hence the user fairness is satisfied [1,2]. In the recent works regarding the NOMA system, the improved performance can be achieved as employing a relaying network [4][5][6][7][8][9][10] with NOMA to introduce cooperative NOMA [11].…”

Section: Introductionmentioning

confidence: 99%

On Performance Analysis of Underlay Cognitive Radio-Aware Hybrid OMA/NOMA Networks with Imperfect CSI

Lee

2019

Electronics

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This study considers the outage and throughput performance of downlink in the secondary network of cognitive radio assisted non-orthogonal multiple access (NOMA) systems. Both orthogonal multiple access (OMA) mode and NOMA mode are investigated with respect to status of decoding operation of each user. Depending on the transmit signal-to-noise ratio (SNR) at the primary source and interference constraint from the primary network, the closed-form expressions of the outage probability for two users are obtained and compared in terms of performance. To obtain further insights, an asymptotic analysis of the outage probability in the high SNR regime is presented. Optimal throughput also provides insight in the computation of the power allocation factor. Furthermore, power allocation factor, target rates, and transmit SNR are evaluated to obtain reasonable outage performance. Monte Carlo simulations are conducted to confirm the analytical results.

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“…In further considerations, novel multiple access (MA) techniques are deployed together with millimeter wave, massive multiple‐input multiple‐output (MIMO), and heterogeneous networks to significantly contribute to the implementation of 5G networks. To increase both user access and system capacity, nonorthogonal multiple access (NOMA) has been proposed as one of favorable technologies for MA scheme . By allocating radio resources (ie, time/frequency/code) under dissimilar power levels, NOMA exhibits new concept to superpose multiple 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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Application of NOMA in Wireless System with Wireless Power Transfer Scheme: Outage and Ergodic Capacity Performance Analysis

Cited by 57 publications

References 27 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

On Performance Analysis of Underlay Cognitive Radio-Aware Hybrid OMA/NOMA Networks with Imperfect CSI

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

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