Performance Analysis of Piece-Wise Linear Model of Energy Harvesting-Based Multiuser Overlay Spectrum Sharing Networks

Solanki, Sourabh; Upadhyay, Prabhat K.; Costa, Daniel Benevides da; Ding, Haiyang; Moualeu, Jules M.

doi:10.1109/ojcoms.2020.3038012

Cited by 29 publications

(64 citation statements)

References 46 publications

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“…Before proving (40), one needs to prepare the PDFs of X in (33) and Y in (34). It is seen that both X and Y have a common form of…”

Section: Discussionmentioning

confidence: 99%

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks

Ho-Van

Do-Dac

2021

Preprint

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EHONs (Energy Harvesting Overlay Networks) satisfy stringent design requirements such as high energy-and-spectrum utilization efficiencies. However, due to open access nature of these networks, eavesdroppers can emulate cognitive radios to wire-tap legitimate information, inducing information security to become a great concern. In order to protect legitimate information against eavesdroppers, this paper generates artificial noise transmitted simultaneously with legitimate information to interfere eavesdroppers. Nonetheless, artificial noise cannot be perfectly suppressed at legitimate receivers as for its primary purpose of interfering only eavesdroppers. Moreover, channel information used for signal detection is hardly estimated at receivers with absolute accuracy. As such, to quickly evaluate impact of channel estimation-and-artificial noise cancellation imperfection on secrecy performance of secondary/primary communication in ANaEHONs (Artificial Noise-aided EHONs), this paper firstly proposes precise closed-form formulas of primary/secondary SOP (Secrecy Outage Probability). Then, computer simulations are provided to corroborate these formulas. Finally, various results are illustrated to shed insights into secrecy performance of ANaEHON with key system parameters from which optimum parameters are recognized. Notably, secondary/primary communication can be secured at different levels by flexibly adjusting various parameters of the proposed system model

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“…Before proving (40), one needs to prepare the PDFs of X in (33) and Y in (34). It is seen that both X and Y have a common form of…”

Section: Discussionmentioning

confidence: 99%

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks

Ho-Van

Do-Dac

2021

Preprint

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“…Pp|hps| 2 +No , which can be further approximated as G ≈ 1 Pp|hps| 2 for analytical simplicity [31], [47]. Such approximation yields very accurate results over the entire region of operating SNR.…”

Section: ) Af Relayingmentioning

confidence: 99%

“…Moreover, RF-based EH systems can be built cheaply in small dimensions, which could be a remarkable advantage in the manufacturing of small and low cost devices such as the SU nodes. A SWIPT-enhanced overlay spectrum sharing system has been recently studied in [31] by considering a piece-wise linear EH model which relies on a TS-based receiver architecture.…”

Section: A Literature Reviewmentioning

confidence: 99%

Performance Analysis of Energy Harvesting-Assisted Overlay Cognitive NOMA Systems With Incremental Relaying

Shukla

Singh

Upadhyay

et al. 2021

IEEE Open J. Commun. Soc.

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In this paper, we analyze the performance of an energy harvesting (EH)-assisted overlay cognitive non-orthogonal multiple access (NOMA) system. The underlying system consists of a primary transmitter-receiver pair accompanied by an energy-constrained secondary transmitter (ST) with its intended receiver. Accordingly, ST employs a time switching (TS) based receiver architecture to harvest energy from radio-frequency signals of the primary transmissions, and thereby uses this energy to relay the primary information and to transmit its own information simultaneously using the NOMA principle. For this, we propose two cooperative spectrum sharing (CSS) schemes based on incremental relaying (IR) protocol using amplify-and-forward (AF) and decode-and-forward (DF) strategies, viz., CSS-IAF and CSS-IDF, and compare their performance with the competitive fixed relaying based schemes. The proposed IR-based schemes adeptly avail the degrees-of-freedom to boost the system performance. Thereby, considering the realistic assumption of the NOMA-based imperfect successive interference cancellation, we derive the expressions of outage probability for the primary and secondary networks under both CSS-IAF and CSS-IDF schemes subject to the Nakagami-m fading. In addition, we quantify the throughput and energy efficiency for the considered system. The obtained theoretical findings are finally validated through numerous analytical and simulation results to reveal the advantages of the proposed CSS schemes over the baseline direct link transmission and orthogonal multiple access schemes.Index Terms-Amplify-and-forward, cognitive radio, decode-and-forward, energy harvesting, incremental relaying, non-orthogonal multiple access (NOMA), overlay spectrum sharing, simultaneous wireless information and power transfer (SWIPT).Recently, the NOMA technique has been commonly debated in the context of cognitive radio (CR), which is another potential This work is carried out under BRICS Multilateral R&D Project with No.

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“…Because Ψðg ps Þ is a function of random variables (G, H, J, U) which are also functions of the random variable g ps according to ( 14), ( 15), (16), and (24), O p ðC 0 Þ in ( 33) is computed through the single-variable integral as…”

Section: Sop For the Primary Message X Pmentioning

confidence: 99%

“…Energy harvesting overlay networks (EHONs) can exploit concurrently advantages of both applicable (energy harvesting and cognitive radio) technologies to satisfy various design metrics of advanced networks including highenergy and spectral efficiencies [15,16]. Nonetheless, both cognitive and primary users in these networks are allowed to transmit on the LFB concomitantly that may facilitate eavesdroppers in emulating legal users to overhear privacy messages, seriously alerting security problems.…”

Section: Introductionmentioning

confidence: 99%

Impact of Artificial Noise on Security Capability of Energy Harvesting Overlay Networks

Ho-Van

Do-Dac

2021

Wireless Communications and Mobile Computing

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Artificial noise, energy harvesting, and overlay communications can assure design metrics of modern wireless networks such as data security, energy efficiency, and spectrum utilization efficiency. This paper studies impact of artificial noise on security capability of energy harvesting overlay networks in which the cognitive transmitter capable of self-powering its operation by harvesting radio frequency energy and self-securing its communications against eavesdroppers by generating artificial noise amplifies and forwards the signal of the primary transmitter as well as transmits its individual signal concurrently. To quantify this impact, the current paper firstly suggests accurate expressions of crucial security performance indicators. Then, computer simulations are supplied to corroborate these expressions. Finally, numerous results are demonstrated to expose insights into this impact from which optimum specifications are determined. Notably, primary/cognitive communications can be secured at distinct degrees by flexibly controlling multiple specifications of the suggested system model.

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Performance Analysis of Piece-Wise Linear Model of Energy Harvesting-Based Multiuser Overlay Spectrum Sharing Networks

Cited by 29 publications

References 46 publications

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks

Performance Analysis of Energy Harvesting-Assisted Overlay Cognitive NOMA Systems With Incremental Relaying

Impact of Artificial Noise on Security Capability of Energy Harvesting Overlay Networks

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