Cooperative Wireless-Powered NOMA Relaying for B5G IoT Networks With Hardware Impairments and Channel Estimation Errors

Li, Xingwang; Wang, Qunshu; Li, Meng; Li, Jingjing; Peng, Hongxing; Piran, Md. Jalil; Li, Lihua

doi:10.1109/jiot.2020.3029754

Cited by 135 publications

(76 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, there are some future research directions. Orthogonal frequency division multiplexing (OFDM) technology supports higher data transmission rate [34][35][36][37]. Channel coding, especially low density parity check (LDPC) code, can effectively improve transmission reliability [38].…”

Section: Discussionmentioning

confidence: 99%

Reduced-Complexity Multiple-Symbol Detection of O-QPSK Signals in Smart Metering Utility Networks

Shi

Zhang

et al. 2020

Electronics

View full text Add to dashboard Cite

In this work, an implementation-friendly multiple-symbol detection (MSD) scheme is proposed for the IEEE 802.15.4g offset quadrature phase shift keying (O-QPSK) receivers over the slow fading channel. The full MSD scheme presents better detection performance than the symbol-by-symbol detection (SBSD) scheme, yet its complexity increases exponentially as the observation window length increases. We introduce a simplified MSD scheme based on two powerful strategies. We first seek the optimal and suboptimal decisions in each symbol position with the standard SBSD procedure. Then, the aforementioned optimal and suboptimal decisions instead of all candidates are jointly searched with the standard MSD procedure. That is, only the most and second most reliable candidates in each symbol position are selected to participate in the final detection. The simulation results demonstrate that the new MSD scheme can achieve more encouraging energy gain than the SBSD scheme, while the high complexity of full MSD is also effectively reduced. A more legitimate compromise between detection performance and complexity is thus accomplished, which enables smart metering utility networks (SUN) nodes to achieve energy saving and maximum service life.

show abstract

Section: Discussionmentioning

confidence: 99%

Reduced-Complexity Multiple-Symbol Detection of O-QPSK Signals in Smart Metering Utility Networks

Shi

Zhang

et al. 2020

Electronics

View full text Add to dashboard Cite

show abstract

“…However, nonlinearity in the hardware as well as imperfections in channel estimates must be accounted for in order to develop a close approximation of realistic environments. In [151], authors determined the performance of cooperative SWIPT IoT systems based on NOMA, in the presence of RHI and CEE. By employing PRS protocol, OP for Near User (NU) and Far User (FU) as well as diversity orders in high SNR region were studied.…”

Section: A Swipt Cor With Hi For B5g Iotmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

“…Consequently, the relays can play a role as a bridge for the source information to reach the destination. Instead of exploiting all available relays which either transmit simultaneously in one orthogonal channel or sequentially in several orthogonal channels, selecting one relay among them according to a certain criterion is considered as an efficient-and-economical solution in terms of complexity, power, and bandwidth [4][5][6][7][8][9][10][11]. However, as an assistant, the selected relay may be unwilling to consume its individual energy for assistant activity.…”

Section: Introductionmentioning

confidence: 99%

Relay Selection for Security Improvement in Cognitive Radio Networks with Energy Harvesting

Ho-Van

Do-Dac

2021

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

This paper selects an unlicensed relay among available self-powered relays to not only remain but also secure information transmission from an unlicensed source to an unlicensed destination. The relays harvest energy in signals of the unlicensed source and the licensed transmitter. Then, they spend the harvested energy for their relaying operation. Conditioned on the licensed outage restriction, the peak transmission power restriction, Rayleigh fading, and the licensed interference, the current paper proposes an exact closed-form formula of the secrecy outage probability to quickly evaluate the secrecy performance of the proposed relay selection method in cognitive radio networks with energy harvesting. The proposed formula is corroborated by computer simulations. Several results illustrate the effectiveness of the relay selection in securing information transmission. Additionally, the security capability is saturated at large peak transmission powers or large preset outage probabilities of licensed users. Furthermore, the security capability depends on many specifications among which the power splitting ratio, the relays’ positions, and the time switching ratio can be optimally selected to obtain the best security performance.

show abstract

Cooperative Wireless-Powered NOMA Relaying for B5G IoT Networks With Hardware Impairments and Channel Estimation Errors

Cited by 135 publications

References 60 publications

Reduced-Complexity Multiple-Symbol Detection of O-QPSK Signals in Smart Metering Utility Networks

Reduced-Complexity Multiple-Symbol Detection of O-QPSK Signals in Smart Metering Utility Networks

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

Relay Selection for Security Improvement in Cognitive Radio Networks with Energy Harvesting

Contact Info

Product

Resources

About