Wirelessly-Powered Full-Duplex AF MIMO Relay Systems Based on Antenna Switching

Li, Chuanping; Wen, Wenkun; Wu, Peiran; Xia, Minghua

doi:10.1109/lcomm.2019.2924219

Cited by 5 publications

(2 citation statements)

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“…Therefore, fullduplex (FD) relaying, which utilizes the scarce frequency spectrum more efficiently by supporting simultaneous signal transmission and reception at the same frequency band, has been exploited. FD relaying SWIPT systems with a linear EH model are investigated in [13]- [23]. The throughput of the FD-AF and DF relaying system based on a TS receiver structure is investigated in [13].…”

Section: Introductionmentioning

confidence: 99%

“…[21] studies an FD-AF multiple relay system employing SWIPT receivers operating in interference channels under PS protocol and presents power allocation problem using game theory. [22] presents the problem of maximizing the energy efficiency of an FD-AF MIMO-OFDM system with self-energy recycling, whereas [23] analyzes an FD-AF MIMO relay system based on antenna switching with self energy recycling and presents the problem of maximizing the spectral efficiency. The above mentioned full-duplex systems are all based on the conventional linear EH model.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Full-Duplex Relaying System With Non-Linear Energy Harvester

Kazmi

Coleri

2020

IEEE Access

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Simultaneous wireless information and power transfer (SWIPT) is a promising technique to prolong the lifetime of energy constrained relay-based systems. Most of the existing literature on relaybased SWIPT systems incorporate linear energy harvesting (EH) model. This paper incorporates a nonlinear EH model into the full-duplex (FD) amplify-and-forward (AF) relay-based system for the first time in the literature. We consider a practical non-linear energy harvester model namely constant-linear-constant (CLC) EH model, which takes into account the sensitivity and saturation characteristics of the EH circuit. First, the end-to-end outage probability of the system is derived for the time-switching (TS) based relay protocol. To prevent the outage performance degradation, the outage throughput and energy efficiency (EE) of the system is maximized by optimizing the TS parameter. Since the formulated problems are convex in nature, the golden-section method is used to find the optimal TS solution. Numerical results reveal the significance of employing a non-linear EH model by demonstrating the difference of the proposed model from the traditional linear EH model system and importance of using full-duplex relay by showing large performance gain over half-duplex relay-based (HDR) system, in terms of outage probability, throughput, and EE.INDEX TERMS Amplify-and-forward (AF) relay, energy harvesting (EH), full-duplex (FD) system, outage probability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%