BER Performance of Full-Duplex Cognitive Radio Network With Nonlinear Energy Harvesting

Babaei, Mohammadreza; Aygölü, Ümit; Başaran, Mehmet; Durak–Ata, Lütfiye

doi:10.1109/tgcn.2020.2990882

Cited by 29 publications

(32 citation statements)

References 31 publications

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“…Replacing ( 37), ( 38), (39), and ( 40) into (36), we obtain the ASER of the considered N-WIPT-FDR system as (31). The proof is complete.…”

Section: Average Symbol Error Ratementioning

confidence: 87%

“…Theorem 3: Under the impacts of nonlinear energy harvester and residual self-interference, the ASER of the considered N-WIPT-FDR system is expressed as (31), as shown at the bottom of the page, where M is the complexity-accuracy trade-off parameter for calculating ASER;…”

Section: Average Symbol Error Ratementioning

confidence: 99%

“…Therefore, the output power of energy harvester in practice is often a nonlinear function of the amount of harvested energy. Specifically, the recent reports in [30], [31] demonstrated that nonlinear energy harvester caused saturated floor even for half-duplex relay (HDR) systems. In addition, the spectral efficiency and energy efficiency of nonlinear energy harvesting systems could be improved by optimizing the time switching ratio [30] and the bit error probability could be reduced via cooperative communications [31].…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, the recent reports in [30], [31] demonstrated that nonlinear energy harvester caused saturated floor even for half-duplex relay (HDR) systems. In addition, the spectral efficiency and energy efficiency of nonlinear energy harvesting systems could be improved by optimizing the time switching ratio [30] and the bit error probability could be reduced via cooperative communications [31]. However, various scenarios using nonlinear energy harvester in wireless communication systems have not still been investigated, especially in terms of mathematical analysis.…”

Section: Introductionmentioning

confidence: 99%

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Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

et al. 2021

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In this paper, we investigate the usage of a nonlinear energy harvester at a full-duplex (FD) relay, which can harvest the energy from radio frequency (RF) signals transmitted from the source. We mathematically derive the exact closed-form expressions of outage probability (OP), throughput, and average symbol error rate (ASER) of the nonlinear energy harvester-wireless information and power transfer-FD relaying (N-WIPT-FDR) system over Rayleigh fading channels. Unlike linear energy harvester, nonlinear energy harvester results in more computational complexity. Furthermore, it makes the outage floor happen faster even when self-interference cancellation (SIC) techniques are effectively applied due to the saturation power threshold of the nonlinear energy harvester. The combination of nonlinear energy harvester characteristic and residual self-interference (RSI) has significant impacts on the OP, throughput, and ASER of the considered N-WIPT-FDR system. On the other hand, there is an optimal energy harvesting (EH) time duration, which minimizes the OP. This optimal value depends on the transmission power of the source and the saturation power threshold of the nonlinear energy harvester. Monte-Carlo simulations are conducted to validate the derived mathematical expressions.INDEX TERMS Nonlinear energy harvesting, full-duplex relay, self-interference cancellation, decode-andforward, outage probability, throughput, average symbol error rate.

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“…Replacing ( 37), ( 38), (39), and ( 40) into (36), we obtain the ASER of the considered N-WIPT-FDR system as (31). The proof is complete.…”

Section: Average Symbol Error Ratementioning

confidence: 87%

Section: Average Symbol Error Ratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

et al. 2021

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“…In the age of Industry 4.0, various new techniques have been fast developed to satisfy the requirements of capacity and energy consumption of the future wireless networks such as the fifth-generation (5G) and beyond (B5G) [1][2][3]. In addition, the emergence of trillions of Internet-of-Things (IoT) devices in the world requires devices to consume less energy and transmit data at a higher rate [3,4].…”

Section: Introductionmentioning

confidence: 99%

On the Capacity of Full‐Duplex AF/DF Relay System with Energy Harvesting for Vehicle‐to‐Vehicle Communications

Nguyen

2021

Wireless Communications and Mobile Computing

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This paper studies the ergodic capacity (EC) of full-duplex (FD) amplify-and-forward (AF) and decode-and-forward (DF) relay system with energy harvesting (EH) for vehicle-to-vehicle (V2V) communications. Unlike previous works on FD-EH systems, we consider the case that both relay and destination are mobile vehicles while the source is a static base station. We mathematically derive the exact closed-form expressions of ECs of both AF and DF protocols of the considered FD-EH-V2V relay system over cascade (double) Rayleigh fading. Our numerical results show that the ECs in the case of the V2V communication system are reduced compared to those in the case of stationary nodes. Also, with a specific value of residual self-interference (RSI), the ECs of the considered FD-EH-V2V relay system can be higher or lower than those of half-duplex- (HD-) EH-V2V system, depending on the average transmission power of the source. Furthermore, when the transmission power of the source and RSI are fixed, the ECs of the considered system can achieve peak values by using optimal EH time duration. On the other hand, the ECs of both AF and DF protocols reach the capacity floors in the high signal-to-noise ratio (SNR) regime due to the RSI impact. Also, the effect of RSI dominates the impact of cascade Rayleigh fading in the high SNR regime. Finally, we validate our analysis approach through Monte-Carlo simulations.

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Throughput performance of a non‐linear energy‐harvesting cognitive radio‐enabled device‐to‐device network

Kumar

Bhowmick

2022

Int J Communication

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Summary In cellular networks, device‐to‐device (D2D) communication is a new paradigm. In this paper, the performance of a non‐linear energy‐harvesting D2D communication network underlaying a cellular network is studied under a channel quality constraint. To make the study more realistic, spectrum sensing is incorporated with the D2D communication. Thus, the user equipments (UEs), that is, D2D devices, are enabled with cognitive radio (CR) technology. Since the UEs are battery powered, there exists an energy constraint. Thus, each UE is also equipped with an energy‐harvesting circuit and harvest energy from radio frequency (RF) signal of power transfer units (PTUs) and cellular users (CUs). Each UE uses its harvested energy for transmission. A D2D transmitter uses sensing information to decide its mode of transmission over a CU channel and is shared in hybrid mode. An algorithm is proposed based on threshold‐based censoring to maximize the throughput. In the proposed scheme, D2D users associated with the bad quality of channels are eliminated from the transmission process. Analytical expressions of throughput and improvement in spectrum utilization (ISU) are developed. The impact of the interference threshold to CU, the censoring threshold and the saturation level of the energy harvester on throughput is studied. The network performance is also investigated for several types of channels. It is found that the amount of fading has a significant impact on throughput performance. It is observed that the proposed scheme outperforms the conventional scheme.

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BER Performance of Full-Duplex Cognitive Radio Network With Nonlinear Energy Harvesting

Cited by 29 publications

References 31 publications

Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

Impacts of Nonlinear Energy Harvesting and Residual Self-Interference on the Performance of Full-Duplex Decode-and-Forward Relay System

On the Capacity of Full‐Duplex AF/DF Relay System with Energy Harvesting for Vehicle‐to‐Vehicle Communications

Throughput performance of a non‐linear energy‐harvesting cognitive radio‐enabled device‐to‐device network

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