SWIPT in mMIMO system with non-linear energy-harvesting terminals: protocol design and performance optimization

Xu, Kui; Zhang, Ming; Liu, Jie; Sha, Nan; Xie, Weixin; Chen, Lihua

doi:10.1186/s13638-019-1378-4

Cited by 15 publications

(11 citation statements)

References 47 publications

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“…By considering best relay selection beamforming criterion giving best performance in terms of OP considering relay, source and destination, analytical expression of OP was calculated and validated through simulations. In [130], authors developed a SWIPT based protocol by considering non-linear energy harvesting model in massive MIMO systems. Here a more realistic power consumption scheme was suggested.…”

Section: E Mimo With Nonlinear Eh and Imperfect Csimentioning

confidence: 99%

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

et al. 2021

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Wireless Power Transfer (WPT) is an innovative technology employed for enhancing the energy sustainability of wireless devices with a limited life span. The idea of integrating WPT in wireless communication leads to the idea of Simultaneous Wireless Information and Power Transfer (SWIPT) that transfers information and power to wireless devices simultaneously, thereby resulting in a drastic increase in spectral efficiency of the network. SWIPT aided Cooperative Relaying (CoR) has emerged as a new trend for Fifth Generation (5G) and Beyond 5G (B5G) systems owing to the rapidly increasing challenges faced by these networks. Cooperative relaying combined with SWIPT can be helpful in overcoming the rising demands of next generation wireless networks by providing an enhanced date rate, low latency, shorter coverage, wide spread connectivity of massive number of devices along with energy-efficiency. This article provides a comprehensive review of SWIPT technology that enables the use of CoR networks for 5G and B5G mobile networks including the significance, technologies, and protocols which can be applied. This article also examines the deployment of cooperative SWIPT involving a single relay, multiple relays and optimal relay selection, multi antenna systems and optimal beamforming .SWIPT under the influence of Hardware Impairments (HI), imperfect Channel State Information (CSI), non-linear energy harvesting models, Intelligent Reconfigurable Surface (IRS), massive MIMO, massive access for the Internet of Things (IoT) has been discussed in detail. Meanwhile, this study discusses key challenges being faced in the implementation of SWIPT for future wireless networks that need to be addressed efficiently.

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Section: E Mimo With Nonlinear Eh and Imperfect Csimentioning

confidence: 99%

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

et al. 2021

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“…An optimization problem and solution is developed in [12] to maximize the sum throughput of a wireless powered communication network. A non-linear Energy extraction model is well suitable for MIMO networks rather than the idealistic linear EH model [13]. Authors in [14] focused on imposing energy constraints while the current energy always is ensured to be greater than a predefined threshold.…”

Section: A Related Workmentioning

confidence: 99%

“…In the above schedule, W k is determined by B k−1 with known values of E k . It is assumed that B 0 = 0, W k can be obtained by computing (17), (16) and (13) for k = 1, 2, . .…”

Section: Energy Optimization Using Greedy Policymentioning

confidence: 99%

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Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

Ashok

Sudha

2020

IEEE Access

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The use of MIMO networks in wireless communication results in increased data rate but leads to severe interference issues and power losses. Promising beamforming (BF) architecture with Conditional Time split-Energy Extraction (CT-EE) is proposed to maximize the Energy Efficiency while optimizing the Mean Square Error (MSE) and Achievable Sum Rate (ASR). A distributed BF system using Minimum Mean Square Error algorithm is jointly implemented at all cooperating nodes. Energy Extraction (EE) from RF signal at the relay nodes facilitates full connectivity among the users. The signal transmission and EE phases are jointly implemented using time-split architecture, without using fixed pre-assigned time slots. Time split from information decoding to EE phase is done only if the battery life is found to be critical. The paper investigates the scope of bypassing the EE phase after ensuring the required power level. The performance of the proposed architecture is compared with the conventional BF and existing EE methods in terms of MSE, ASR and energy efficiency. The proposed architecture is well suitable to establish uninterrupted connectivity between user nodes which are frequently used and have severe power drain-off issues as they can be a part of natural disaster like flood affected wireless networks.

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“…As discussed above, there have been many works investigating the benefits of both EH and FD techniques in WIPT-FDR systems through mathematical analyses or simulations. Although linear energy harvester has been widely used in the literature, recent reports such as [26]- [29] demonstrated that it might be impractical. In fact, there are various factors causing the nonlinear characteristic of energy harvester such as diode and saturation nonlinearities.…”

Section: Introductionmentioning

confidence: 99%

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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SWIPT in mMIMO system with non-linear energy-harvesting terminals: protocol design and performance optimization

Cited by 15 publications

References 47 publications

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

Simultaneous Wireless Information and Power Transfer With Cooperative Relaying for Next-Generation Wireless Networks: A Review

Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

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

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