Bandwidth allocation of cognitive relay networks with. Toward energy harvesting using active materials and. Li q, naing v, hoffer j a, weber d j, kuo a d and donelan j m 2008 biomechanical energy harvesting. Though, replacing or recharging batteries can avoid energy harvesting, it incurs a high cost and can be inconvenient or hazardous e. Performance of a cooperative network with energy harvesting. In this paper, we investigate the performance of energy harvesting. In addition, simultaneous wireless information and power transfer, which aims to maximise energy efficiency, has received significant attention. The theoretical analysis and the closeform expression of outage probability are derived and compared with the monte carlo simulation.
If two energy transmitters have the same antenna gain i. Relaying protocols for wireless energy harvesting and information processing ali a. Energyharvestingpowered wsn is possible due to the convergence of new technologies. Cooperative spectrum sensing with energy harvesting. Nodes equipped with rf energy harvesting can harvest energy from ambient rf sources e. Energy harvesting is the ideal solution for indefinite longterm powering of wireless sensor nodes or networks wsn without maintenance.
Energy harvesting a practical reality for wireless sensing fast forward energy harvesting enables remote sensing at low cost. For onestage energy harvesting, expressions are derived to calculate the ef. On energy harvesting gain and diversity analysis in cooperative communications menglin ku, member, ieee, wei li, yan chen, senior member, ieee, and k. Nasir, student member, ieee, xiangyun zhou, member, ieee, salman durrani, senior member, ieee, and rodney a. Kennedy, fellow, ieee abstract an emerging solution for prolonging the lifetime of energy constrained relay nodes in wireless networks is. In this paper, we propose the use of hybrid energy harvesting heh utilizing multiple type energy sources and present the modeling of heh communication systems based on their probabilistic natures.
Modeling the residual energy and lifetime of energy. In contrast to conventional uplink wireless networks, the sensor nodes in the considered network have no embedded energy supply. The system is designed to monitor the structure vibration intensity, such as vibration amplitude and frequency, which provide useful information about the local stress intensity and the dynamic behaviors of the structure 6. Exact performance analysis of ambient rf energy harvesting wireless sensor networks with ginibre point process hanbae kong, member, ieee, ian flint, ping wang, senior member, ieee, dusit niyato, senior member, ieee, and nicolas privault abstractambient radio frequency rf energy harvesting. Closedform expressions are derived and tested through simulations. Wireless energy harvesting for the internet of things ieee. Energy harvesting ieee conferences, publications, and. In recent years, wearable devices have attracted attention because of their ability to enhance the quality of life. However, challenges remain in the widespread adoption of energy harvesting. In this paper, we provide the detection probability dp of the energy detector ed for wireless energy harvesting systems. The development of implanted devices is essential because of their direct effect on the lives and safety of humanity. Achieving the ageenergy tradeoff with a finitebattery energy harvesting source. Ieee sensors journal, 2017 intensive research on energy harvesting powered wireless sensor nodes wsns has been driven by the needs of reducing the power consumption by the wsns and increasing the power generated by energy harvesters. The source and relay are assumed to harvest energy from ambient sources.
This paper presents save, for stochastic analysis and availability of energy, an analytical framework providing closed form expressions for residual energy. We take into account the nonlinearities of the rf energy harvesting process and derive closedform analytical expressions for the average harvested energy for. Power enhancement for piezoelectric energy harvester. Murthy, senior member, ieee abstractin this work, we consider an energy harvesting eh node that periodically takes a measurement and conveys it to a. Energy aware approaches for energy harvesting powered wireless sensor nodes. Naehyuck chang, fellow, ieee, and massoud pedram, fellow, ieee abstract energy harvesting is a promising technique to overcome the limit on energy availability and increase the lifespan of batterypowered embedded systems. Electrostrictive polymers for mechanical energy harvesting. Cognitive radio networking with cooperative relaying and. Wireless energy harvesting in a cognitive relay network.
Cognitive radio networks with energy harvesting result in efficient use of both energy and spectrum. This paper presents the current issues and challenges related to all methods used to harvest energy for implantable biomedical devices. In this underlay cognitive radio scheme, secondary users are allowed to access. The area of energy harvesting has seen significant interest in academic circles over the past decade. In this paper, the application of simultaneous wireless information and power transfer swipt to nonorthogonal multiple access noma networks in which users are spatially randomly located is investigated. Introduction advances in energy harvesting technologies have led to the possibility of realizing energy harvesting wireless sensor networks ehwsn, making it possible to power wireless embedded devices by smallscale ambient energy 1. Relaying protocols for wireless energy harvesting and. Such a device can be very useful to charge mobile phone in jungles and in remote areas or where the electric utility is not available or not reliable. In various wireless networks, power allocation scheme promises significant benefits in energy harvesting eh wireless networks. The advantages, disadvantages, and future trends of each method are discussed. The first portion of time is used for energy harvesting at from the sources s1 and s2.
This paper presents the results of a project in rf energy harvesting for scavenging energy from the ubiquitous radiofrequency rf electromagnetic waves. Numerical results results are provided, and show the impact of the harvested power in improving the overall rate of the system. Optimizing joint data and power transfer in energy harvesting multiuser wireless networks bassem khal. A wellstudied nonlinear oscillator for vibration energy harvesting is shown in fig.
As vibration energy is ubiquitous, harvesting vibration energy to generate electrical power is well suited to power the lowpower electronic devices, wireless sensors, and their networks. Exact performance analysis of ambient rf energy harvesting. In this paper, we investigate an energy harvesting scheme in a smart grid based on the cognitive relay protocol, where a primary transmitter scavenges energy from the nature sources and then employs the harvested energy to forward the primary signal. The concept of energy harvesting generally relates to the process of using ambient energy, which is converted. However, these benefits depend on the knowledge of the channel state information csi, which is hardly perfect. Weighted tradeoff between spectral efficiency and energy. Performance analysis of relaying systems with fixed and energy. Vibration energy harvesting from random force and motion. There are three main transduction mechanisms employed to extract energy from vibrating environment. The internet of things iot is an emerging computing concept that describes a structure in which everyday physical objects, each provided with unique identifiers, are connected to the internet without requiring human interaction. Wireless sensor networks, energy harvesting, medium access control, ieee 802.
Pdf on secure wireless sensor networks with cooperative. Their paper was the first to formulate analytical expressions for the value of vopt and explore its dependence on circuit switching activity and process parameters. On secure wireless sensor networks with cooperative energy harvesting relaying article pdf available in ieee access pp99. Wireless sensor networks with rf energy harvesting. Relaying protocols for wireless energy harvesting and information processing abstract. Mems membrane based wide band low frequency resonator for energy harvesting application. In this paper, we consider a wireless energy harvesting network consisting of one hybrid access point hap having multiple antennas, and multiple sensor nodes each equipped with a single antenna.
This disruptive technology has helped healthcare professionals with intervening early in chronic diseases, especially amongst independently living patients, and has. The alltime interval for the energy harvesting and information processing is denoted by, which is divided into three intervals. Studying the feasibility of energy harvesting in a mobile. We characterize the problem of uneven energy consumption, suggest energy harvesting as a possible solution, and provide a simple analytical framework to evaluate energy consumption and our scheme. We define energy harvesting as the collection and storage of ambient energy for ondemand, offgrid use. Mobileedge computing mec and wireless power transfer are two promising techniques to enhance the computation capability and to prolong the operational time of lowpower wireless devices that are ubiquitous in internet of things. On this basis, the exact closedform secrecy outage probability sop expressions of the system with two eh protocols are derived, respectively. Modeling the residual energy and lifetime of energy harvesting sensor nodes m. Photographs of the three arrays discussed in this paper. Rabie, member, ieee, bamidele adebisi, senior member, ieee, mohamedslim alouini, fellow, ieee abstractenergyharvesting eh and wireless power transfer in cooperative relaying networks have recently attracted a considerable amount of research attention. Depending on the intensity of the energy harvesting from nature, a secondary user dynamically acts as a relay node to assist the. Modeling the residual energy and lifetime of energy harvesting. In this paper, an energy harvesting underlay cognitive radio relaying network is investigated.
An emerging solution for prolonging the lifetime of energy constrained relay nodes in wireless networks is to avail the ambient radiofrequency rf signal and to simultaneously harvest energy and process information. According to the rf wireless charging model, the amount of harvested power by the rf energy harvesting receiver would be. At vopt voltage, the energy per operation reaches a minimum, and further reduction of the supply voltage increases the leakage energy more quickly than the dynamic energy reduces. Energy harvesting is considered as a prominent technology, particularly for lowpower wireless nodes. Energy harvesting wireless sensor networks for indoors. For twostage energy harvesting circuits, theoretical ef. Harvesting techniques section, it can be seen that the electrostrictive coefficient m appears to be an important parameter to increase the scavenging abilities of the system. Longterm and selfsustainable operation are key components for realization of such a complex network, and entail energy aware devices that are potentially. Also investigation is done to analyze the effect of system parameters on the achievable tradeoff performance of the energy harvesting based system. Chowdhury department of electrical and computer engineering northeastern university, boston, ma 02115, u.
A new cooperative swipt noma protocol is proposed, in which near noma users that are close to the source act as energy harvesting relays to help far noma users. Ray liu, fellow, ieee abstractthe use of energy harvesting cooperative relays is a promising solution to batterylimited wireless networks. Joint relay selection and power allocation in energy. With the recent introduction of commercial ics geared for energy harvesting applications by multiple semiconductor companies, this area is poised to take the next step to commercial adoption. Recent studies 2, 3 have shown that rf energy harvesting is a feasible technique based on experimental measurements of various rf energy sources.
The source for harvesting at the transmitter is the solar energy, and at the. Halfduplex and fullduplex af and df relaying with energy. Introduction nergy harvesting techniques is a technology to generate electrical power from natural green energy sources. On energy harvesting gain and diversity analysis in. Optimizing joint data and power transfer in energy. Ali mousavifar, member, ieee, yansha deng, student member, ieee, cyril leung, member, ieee, and maged elkashlan, member, ieee abstractwireless energy harvesting is regarded as a. Adaptive energy harvesting relaying protocol for twoway. Signal processing energy cost is not considered and thus relaying transmission is the only energy operating cost for the system. However, the computation performance and the harvested energy are significantly impacted by the severe propagation loss. Mems energy harvester free download as powerpoint presentation. Energy harvesting for the implantable biomedical devices. Nonorthogonal multiple access noma, which is an effective solution to improve spectral efficiency, has been considered as an emerging candidate for the fifth generation multiple access. Index termsenergy harvesting, piezoelectric materials, resonance frequency, impedance matching. Ambient rf energy harvesting with nonlinearities in.
Ieee internet of things journal accepted to appear 2 protocols were proposed, namely the timeswitching ts and powersplitting ps protocols. We provide the expressions relating the threshold values on the age to the. The concept of harvesting energy from environmental sources and human body motion for implantable devices has gained a new relevance. Energy harvesting is considered as a prominent technology, particularly. Ieee power and energy magazine is devoted to all aspects of the electric power field involving planning, design, construction, operation, maintenance, and control of power systems. Simulation results are presented to validate the derived analytical expressions and bring out useful insights. Modeling of hybrid energy harvesting communication systems. Due to the base excitation on the root of the cantilever, the piezoceramic layer bends together with the cantilever beam, and therefore voltage output across the load can be achieved. Throughput maximization under temperature constraints omur ozel, member, ieee, sennur ulukus, fellow, ieee, and pulkit grover, member, ieee abstractmotivated by the damage due to heating in sensor. These two energy harvesting schemes are also compared. Security of relay wiretap networks with energy harvesting ieee. Naehyuck chang, fellow, ieee, and massoud pedram, fellow, ieee abstractenergy harvesting is a promising technique to overcome the limit on energy availability and increase the lifespan of batterypowered embedded systems. In cognitive radio networks, secondary nodes should sense the channel using spectrum sensing algorithms to detect primary activity. Wsn by integrating energy harvesting, data sensing, and wireless communication into a uni.
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