Energy-Harvesting-Relais

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Relay Selection For Energy-Harvesting Relays with Finite Data

This work studies buffer-aided relaying for relays that accumulate the energy harvested from source signal using finite-size energy buffers.

Power Splitting and Source-Relay Selection in Energy Harvesting

This paper investigates the performance of an energy-harvesting (EH) relay network, where multiple sources communicate with a destination via multiple EH decode-and

Resource allocation for NOMA-based multicast cognitive radio networks

Furthermore, energy-harvesting (EH) has emerged as an effective means to energize cellular networks, and reduce dependency on the electrical grid [6]. Undoubtedly, combining NOMA with cognitive radio, energy-harvesting, and cooperative relaying can further improve spectrum utilization, transmission reliability, and energy-efficiency; ultimately fulfilling

Relay Selection for Energy-Harvesting Relays with Short-Term

In this paper, we investigate the relay selection (RS) problem for EH relays with short-term energy storage. A relay selection scheme, called selective max-max relay selection (S-MMRS), is

Joint Power Splitting and Relay Selection in Energy-Harvesting

Abstract: In this article, we consider an energy-harvesting (EH) relay system consisting of a source, a destination, and multiple EH decode-and-forward (DF) relays that can harvest the

Voluntary energy harvesting relays and selection in cooperative

The use of energy harvesting (EH) nodes as cooperative relays is a promising and emerging solution in wireless systems such as wireless sensor networks. It harnesses the spatial diversity of a multi-relay network and addresses the vexing problem of a

Energy harvesting relay selection and power allocation in

In this paper, we consider the policy of the power allocation of the users and energy harvesting selected relay in a cooperative non-orthogonal multiple access (NOMA)

Transmit Power Minimization for Wireless Networks with Energy

Abstract—Energy harvesting (EH) has recently emerged as a key technology for green communications as it can power wireless networks with renewable energy sources. However, directly replacing the conventional non-EH transmitters by EH nodes will be a challenge. In this paper, we propose to deploy

Relay Selection for Energy-Harvesting Relays With Finite Data

Numerical results demonstrate that the proposed relay selection scheme can fully exploit the diversity gain of multiple relays when ignoring energy consumption of feedback, and still significant outperforms some existing buffer-aided relay selection schemes. Buffer-aided relaying can fully utilize the available selection gain of relay channels by allowing relays to

Double discrete-time-switch protocol for SWIPT at the energy harvesting

energy harvesting relaying node receives the energy and infor-mation fromthe source node and needsto serve a pair of users. They are energy harvesting destination node and information reception destination node, respectively. The channel gains between two conjoint nodes are all com-posed of two parts: the line-of-sight (LOS) part and the

Relay Selection for Energy-Harvesting Relays With Finite Data

This work studies buffer-aided relaying for relays that accumulate the energy harvested from source signal using finite-size energy buffers. A relay selection scheme considering both data

Transmit Power Minimization for Wireless Networks With Energy

Energy harvesting (EH) has recently emerged as a key technology for green communications as it can power wireless networks with renewable energy sources. However, directly replacing the conventional non-EH transmitters by EH nodes will be a challenge. In this paper, we propose to deploy extra EH nodes as relays over an existing non-EH network. Specifically, the considered

Cooperative communication with energy‐harvesting relays under

In this study, the authors propose a cooperative transmission scheme with energy-harvesting (EH) relays under wiretapping of an eavesdropper. In this scheme, the relays harvest energy from radio-frequency (RF) signals of a source through power-splitting receivers, and process arrived signals by amplify-and-forward (EH-AF protocol) and decode-and-forward

Relay Selection for Energy-Harvesting Relays With Finite Data

Buffer-aided relaying can fully utilize the available selection gain of relay channels by allowing relays to store the received packets in the data buffers when the first-hop and second-hop channels are mismatched in quality. For energy-constrained Internet-of-Things (IoT) networks, some relays may lack sufficient energy to forward the buffered packets even their relay-to

Secure communication in untrusted relay selection networks with

In this paper, we consider the secrecy performance of an energy-harvesting relaying system with Kth best partial relay selection where the communication of a multi-antenna source-destination pair is assisted via single-antenna untrusted relays. To protect confidential source messages from untrusted relays, transmit beamforming and destination jamming

Optimization of SWIPT with Battery-Assisted Energy Harvesting Full

Typically, the random nature of the harvested RF energy may result in poor QoS in networks with EH nodes [25]. To overcome this problem, some suggested solutions are 1) use of energy buffers that

Relay Selection for Energy Harvesting Relays With Energy

In Internet of Things (IoT) networks for carrying out environment monitoring tasks, maintaining low energy consumption of IoT devices can prolong the lifetime of IoT but the effective communication range may be restrictive. The two-hop transmission with relay selection has been shown to achieve a good trade-off between extended communication range and

Relay Selection For Energy-Harvesting Relays with Finite Data

By harvesting energy from ambiance, such as solar and radio frequency (RF), a relay node can charge itself whenever possible. Since the harvested energy is often weak, two strategies have

Voluntary Energy Harvesting Relays and Selection in Cooperative

The use of energy harvesting (EH) nodes as cooperative relays is a promising and emerging solution in wireless systems such as wireless sensor networks. It harnesses the spatial diversity of a multi-relay network and addresses the vexing problem of a relay''s batteries getting drained in forwarding information to the destination. We consider a cooperative system

Adaptive time-switching and power-Splitting protocols for energy

In such a scenario, energy harvesting (EH) from the environment can be a viable solution. In view of the fact that radio signal can carry information and energy at the same time, a fascinating new research direction, the so-called simultaneous wireless information and power transfer (SWIPT), has recently been pursued [2], [3], [4].

On Physical Layer Security of Two Way Energy Harvesting Relays

Using relay activation threshold as power constraint, the performance of two-way DF relay with energy harvesting capability is determined, and a closed-form expression of intercept probability in the presence of cluster of eavesdroppers is derived. Energy harvesting relays are gathering significant research interest due to their applications in large-scale

Selection cooperation using RF energy harvesting relays with

Energy harvesting (EH) is an effective method to reduce power consumption of wireless networks. In this paper, we investigate the use of EH relays that harvest energy via RF radiation from the

Battery-Aware Relay Selection for Energy Harvesting

the minimum harvested energy in the forwarding set, the ac-cumulated amount of harvested energy per source transmission is maximized because there are always at least N − 1 relays performing energy harvesting (it is possible that all the N relays will harvest energy if the forwarding set is empty).

Joint Resource Optimization for Multicell Networks with Wireless Energy

for energy harvesting and information processing at the self-sustaining relays of multiuser interference networks. However, [23] does not consider the important issue of allocating the transmit powers at the BSs and the relays. In this paper, we consider a multicell network in which the BS of each cell communicates with its

Analysis of the outage performance of energy-harvesting

Simultaneously, the energy harvesting has surfaced as a sustainable solution, converting ambient environmental energy into usable electrical power for operating communication nodes. This paper

Secrecy Outage of an Energy Harvesting Multi-relay Network with

Here, the proposed energy harvesting schemes are time splitting (TS) scheme, power splitting (PS) scheme, time-division-duplexing PS scheme and FD-PS scheme. In, multiple relays using the PS scheme of harvesting energy to harvest the energy. Sufficient harvesting energy is required to activate the relay for transmitting the signal.

Time-Switching Energy Harvesting Relay Optimizing

This paper formulates the information transferring and energy usage model for the energy harvesting relay considering the decoding cost and give the unique solution for

Cooperative communication with energy-harvesting relays under

Energy harvesting is an efficient technology for independent-action wireless devices with batteries that are impossible to replace and recharge in hazardous environments [14–16]. In energy harvesting, the wireless devices can collect radio-frequency (RF) signals from the surroundings to crop energy. An ideal energy-harvesting receiver would