Performance Analysis and Optimization of Bidirectional Overlay Cognitive Radio Networks With Hybrid-SWIPT

Prathima, Addanki; Gurjar, Devendra Singh; Nguyen, Ha H.; Bhardwaj, Ajay

doi:10.1109/tvt.2020.3029067

Cited by 34 publications

(19 citation statements)

References 44 publications

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“…However, it does not capture the non-linear behaviour of the rectifier circuit. To tackle the problem with the linear EH model, the practical EH model in [30] and [15], which uses a non-linear function to model the harvested power, is considered in this paper. By adopting this model, the non-linear harvested power of UN k can be expressed as (15) where…”

Section: ) Energy Receivermentioning

confidence: 99%

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Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks

Mahama

Asiedu

Harbi

et al. 2021

IEEE Open J. Commun. Soc.

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In order to address the shortcomings of orthogonal frequency division multiplexing (OFDM) and extend the lifetime of energyconstrained Internet-of-Things (IoT) devices, the combination of filter bank multi-carrier (FBMC) and simultaneous wireless information and power transfer (SWIPT) is investigated in this paper. Specifically, a multiuser FBMC-based SWIPT system is proposed in which user nodes (UNs) have the capability for both energy harvesting (EH) and information decoding (ID) with the aid of separate antennas. A practical non-linear EH model, which considers the saturation effects of the EH circuit, is considered. The information receiver at both the UNs and base station (BS) adopts an iterative interference cancellation (IIC) receiver to cancel the intrinsic interference in the demodulated FBMC signal. A sum-rate maximization problem is solved to jointly optimize parameters such as time, power, and weight allocations. Sub-optimal schemes are proposed for comparison. Numerical results show that the optimal solution significantly outperforms the sub-optimal methods in terms of achievable sum-rate and amount of harvested energy. Moreover, the results show that the proposed algorithm converges within a few iterations. Index Terms-Filter bank multi-carrier (FBMC), simultaneous wireless information and power transfer (SWIPT), time division multiple access (TDMA), sum-rate maximization, Internet-of-Things (IoT) networks.

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Section: ) Energy Receivermentioning

confidence: 99%

“…However, practical EH devices consist of a rectifier circuit with diodes and transistors which imposes a non-linear behaviour on the EH circuit. Thus, non-linear EH models have been implemented for SWIPT recently [13], [15].…”

Section: Introductionmentioning

confidence: 99%

Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks

Mahama

Asiedu

Harbi

et al. 2021

IEEE Open J. Commun. Soc.

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“…Despite the extensive study of either the CCRNs or the SWIPT-aided networks, the performance of SWIPT-enabled underlay CCRNs is still in the infancy stage. In particular, there only a few works addressing this combination [30][31][32][33]. Specifically, Prathima et al in [30] studied the performance of the primary networks with the help of the secondary users that also act as the relay of primary users.…”

Section: Introductionmentioning

confidence: 99%

Outage Analysis of the Power Splitting Based Underlay Cooperative Cognitive Radio Networks

Tin

Phan

Nguyen

et al. 2021

Sensors

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In the present paper, we investigate the performance of the simultaneous wireless information and power transfer (SWIPT) based cooperative cognitive radio networks (CCRNs). In particular, the outage probability is derived in the closed-form expressions under the opportunistic partial relay selection. Different from the conventional CRNs in which the transmit power of the secondary transmitters count merely on the aggregate interference measured on the primary networks, the transmit power of the SWIPT-enabled transmitters is also constrained by the harvested energy. As a result, the mathematical framework involves more correlated random variables and, thus, is of higher complexity. Monte Carlo simulations are given to corroborate the accuracy of the mathematical analysis and to shed light on the behavior of the OP with respect to several important parameters, e.g., the transmit power and the number of relays. Our findings illustrate that increasing the transmit power and/or the number of relays is beneficial for the outage probability.

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“…EHONs can exploit simultaneously advantages of both feasible (cognitive radio and energy harvesting) technologies to meet several standards of advanced wireless networks requiring high energy-and-spectral efficiencies [14]. Nevertheless, that both licensed and unlicensed users in these networks are permitted to utilize the licensed spectrum simultaneously may enable eavesdroppers to emulate legitimate users to steal secret information, seriously warning security issues.…”

Section: Introductionmentioning

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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Performance Analysis and Optimization of Bidirectional Overlay Cognitive Radio Networks With Hybrid-SWIPT

Cited by 34 publications

References 44 publications

Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks

Multi-User Wireless Information and Power Transfer in FBMC-Based IoT Networks

Outage Analysis of the Power Splitting Based Underlay Cooperative Cognitive Radio Networks

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

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