Optimizing energy harvesting with diversity in cooperative simultaneous wireless information and power transfer systems

被引：0

作者：

Singh, Shweta ^{[1
]}

Kumar, Rahul ^{[2
]}

Priya, S. ^{[3
]}

Choudhury, Mridusmita Roy ^{[4
]}

Ravi, Vinayakumar ^{[5
]}

Gururaj, H. L. ^{[6
]}

机构：

[1] Manipal Acad Higher Educ, Manipal Inst Technol Bengaluru, Elect & Commun Engn, Manipal, India

[2] GLA Univ, Elect & Commun Engn, Mathura, India

[3] Manipal Acad Higher Educ, Manipal Inst Technol Bengaluru, Informat Technol, Manipal, India

[4] Manipal Acad Higher Educ, Manipal Inst Technol Bengaluru, Mech & Ind Engn, Manipal, India

[5] Prince Mohammad Bin Fahd Univ, Ctr Artificial Intelligence, Khobar, Saudi Arabia

[6] Manipal Acad Higher Educ, Manipal Inst Technol Bengaluru, Dept Informat Technol, Manipal, India

来源：

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2024年 / 37卷 / 15期

关键词：

amplify and forward (AF); decode and forward (DF); energy harvesting (EH); fluctuating two ray (FTR); maximal ratio combining (MRC); simultaneous wireless information and power transfer (SWIPT); DIGITAL-COMMUNICATION SYSTEMS; PERFORMANCE ANALYSIS; CHANNEL; DUPLEX; MODEL; AF;

D O I：

10.1002/dac.5890

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Radio frequency (RF) energy harvesting (EH) for wireless networks provides a green and sustainable solution and offers an energy-efficient system. It is most crucial for fulfilling the power requirement of the rising number of low-powered wireless devices and achieving sustainable development goals (SDG). It ensures the longevity of devices in the network even at inaccessible remote locations. Such RF-EH-based mechanisms are utilized in simultaneous wireless information and power transfer (SWIPT) systems. Most of the prevailing studies have analyzed the SWIPT system over conventional fading channels. However, due to the higher rate requirements, the current paradigm shift in frequency usage shifts towards the GHz band, which also offers better EH efficiency. Hence, SWIPT system analysis over the channel that is suitable for mm-wave signal propagation is dealt with in this study. This study evaluates SWIPT performance over fluctuating two-ray (FTR) fading channel that is crucial since it provides the best fit for characterizing GHz signal and also provides a generalized framework for most of the conventional fading channels. This study presents new analytical results assuming time switch relaying (TSR) protocol with (i) amplify and forward (AF) and (ii) decode and forward (DF) relaying. The results are also analyzed for H branches maximal ratio combining (MRC) diversity technique and evaluated the diversity gain for both AF and DF relays. The effectiveness of the system is measured in terms of system outage probability (SOP) to envisage the reliability of SWIPT based system. This work presents the simulation and modeling of such system and its obtained results are validated by Monte Carlo simulations for their accuracy. Radiofrequency energy harvesting for wireless networks offers a green, sustainable, and energy-efficient solution. It is essential for powering the growing number of low-powered wireless devices, aiding in sustainable development. It supports device longevity, even in remote locations, and is used in SWIPT systems. This paper analyzes SWIPT over GHz band channels suitable for mm-wave signals, presenting new analytical results with time switch relaying protocol using amplify and forward and decode and forward relays to compute system outage probability. image

引用

页数：20

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