This paper considers simultaneous wireless information and power transfer (SWIPT) for a multiple-input multipleoutput (MIMO) relay system. The relay is powered by harvesting energy from the source via time switching (TS) and utilizes the harvested energy to forward the information signal. Our aim is to maximize the rate of the system subject to the power constraints at both the source and relay...

High-power and high-rate simultaneous wireless information power transfer (SWIPT) becomes more important with the development of Internet Things technologies. Optical SWIPT, also known as light (SLIPT), has unique advantages such abundant spectrum resources low propagation divergence, compared radio-frequency (RF) SWIPT. However, optical SWIPT faces many challenges in beam steering receiver pos...

We built a phased array system for high-power simultaneous wireless information and power transfer (SWIPT) using four 5.8-GHz injection-locked magnetrons. In the magnetron state, transmission efficiency was measured at different modulation rates. The fluctuation in not more than 0.5%. observed that dynamic beamforming does affect communication quality. Using system, SWIPT experiments revealed f...

This work studies the SWIPT-based half-duplex (HD) decode-and-forward (DF) relay network, wherein user can scavenge power from source’s radio-frequency (RF) signals and then utilize it to convey information destination. Specifically, two relaying schemes, termed static splitting- (SPS-) based (SPSR) optimal dynamic (DPS-) (ODPSR), are proposed investigate benefits of each one fully. Based on ab...

This paper investigates the outage probability of an energy harvesting (EH) relay-aided cooperative network, where a source node transmits information to its destination node with the help of an energy harvesting cooperative node. For such a system, we derive an explicit closed-form expression of outage probability over Nakagami-m fading channels for both amplify-and-forward (AF) and decode-and...

This paper investigates the simultaneous wireless information and power transfer (SWIPT) precoding scheme for K-user multiple-input-multiple-output (MIMO) interference channels (IC), which alignment (IA) schemes provide optimal precoders to achieve full degrees-of-freedom (DoF) gain. However, harvesting RF energy simultaneously reduces achievable DoFs. To study a trade-off between harvested sum...

In this paper, to maximize the energy efficiency (EE) in two-hop multi-relay cooperative decoding and forwarding (DF) system for simultaneous wireless information power transmission (SWIPT), an optimal allocation algorithm is proposed, which relay harvesting (EH) adopts a nonlinear model. Under constraints, including causality, minimum quality of total at relays, optimization problem constructe...

Device-to-device (D2D) communication is an emerging paradigm that can improve system capacity and spectral efficiency by using cooperative coexisting with cellular networks. In spite of these advantages, D2D suffers from unfair resource usage, security risks posed eavesdroppers, limited energy storage. To deal issues, in this paper, we propose a allocation algorithm to maximize the security-awa...

In this letter, the design of coded modulation for simultaneous wireless information and power transfer (SWIPT) block-fading channels is proposed, both power-splitting (PS) time-switching (TS) nonlinear energy harvesting (EH). With PS, although diversity-rate tradeoff not affected, EH requires asymmetric modulations which leads to an (IT) performance penalty. We thus circular quadrature amplitu...

—Simultaneous Wireless Information and Power Transfer (SWIPT) potentially offers great convenience to prolong the lifetime of energy-constrained nodes in wireless networks. This paper considers multiple-relay network that incorporates SWIPT where the Base Station (BS) communicates with the user through the help of multiple single-antenna relays. A relay beamforming and energy harvest design is...