Optimization of Cognitive Two-Way Networks With Energy Harvesting Relays

Singh, Supreet; Modem, Sudhakar; Prakriya, Shankar

doi:10.1109/lcomm.2017.2666152

Cited by 26 publications

(14 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It aims to solve spectrum scarcity [82]. SWIPT-based cognitive network [83][84][85] can increase the spectrum sharing and EH efficiency. Extra energy from SUs can be utilized to transfer energy between PUs.…”

Section: Swipt-enabled Wireless Systemsmentioning

confidence: 99%

On-Site and External Energy Harvesting in Underground Wireless

Raza

Salam

2020

Electronics

View full text Add to dashboard Cite

Energy efficiency is vital for uninterrupted long-term operation of wireless underground communication nodes in the field of decision agriculture. In this paper, energy harvesting and wireless power transfer techniques are discussed with applications in underground wireless communications (UWC). Various external wireless power transfer techniques are explored. Moreover, key energy harvesting technologies are presented that utilize available energy sources in the field such as vibration, solar, and wind. In this regard, the Electromagnetic (EM)- and Magnetic Induction (MI)-based approaches are explained. Furthermore, the vibration-based energy harvesting models are reviewed as well. These energy harvesting approaches lead to design of an efficient wireless underground communication system to power underground nodes for prolonged field operation in decision agriculture.

show abstract

Section: Swipt-enabled Wireless Systemsmentioning

confidence: 99%

On-Site and External Energy Harvesting in Underground Wireless

Raza

Salam

2020

Electronics

View full text Add to dashboard Cite

show abstract

“…After that, refs. [25,26] presented and discussed the multiple EH relays and a two-way EH RN. Also, refs.…”

Section: Of 15mentioning

confidence: 99%

Multisource Power Splitting Energy Harvesting Relaying Network in Half-Duplex System over Block Rayleigh Fading Channel: System Performance Analysis

et al. 2019

View full text Add to dashboard Cite

Energy harvesting and information transferring simultaneously by radio frequency (RF) is considered as the novel solution for green-energy wireless communications. From that point of view, the system performance (SP) analysis of multisource power splitting (PS) energy harvesting (EH) relaying network (RN) over block Rayleigh-fading channels is presented and investigated. We investigate the system in both delay-tolerant transmission (DTT), and delay-limited transmission (DLT) modes and devices work in the half-duplex (HD) system. In this model system, the closed-form (CF) expressions for the outage probability (OP), system throughput (ST) in DLT mode and for ergodic capacity (EC) for DTT mode are analyzed and derived, respectively. Furthermore, CF expression for the symbol errors ratio (SER) is demonstrated. Then, the optimal PS factor is investigated. Finally, a Monte Carlo simulation is used for validating the analytical expressions concerning with all system parameters (SP).

show abstract

“…, N 1 and A, B denote all the subsets of U that satisfy A + B � U. From formula (18), g W (t) is a combination of 2 N 1 product terms. We only need to consider the PDF of one particular term and can obtain the others in the same way.…”

Section: Mobile Information Systemsmentioning

confidence: 99%

“…Considering cooperative EH communications, a multiple-relay selection scheme using geometric programming (GP) is proposed in [17] in order to maximize data rate-based utilities over multiple coherent time slots. e work in [18] is extended to a cognitive two-way EH relay network. Specifically, closed-form expressions of the throughput are derived to maximize interference temperature apportioning parameter (ITAP) and the PS parameter.…”

Section: Introductionmentioning

confidence: 99%

Outage Analysis and Power Allocation Optimization for Multiple Energy-Harvesting Relay System Using SWIPT

Liu

Zhu

Wang

2018

Mobile Information Systems

View full text Add to dashboard Cite

Energy harvesting (EH) combined with cooperative relying plays a promising role in future wireless communication systems. We consider a wireless multiple EH relay system. All relays are assumed to be EH nodes with simultaneous wireless and information transfer (SWIPT) capabilities, which means the relays are wirelessly powered by harvesting energy from the received signal. Each EH node separates the input RF signal into two parts which are, respectively, for EH and information transmission using the power splitting (PS) protocol. In this paper, a closed-form outage probability expression is derived for the cooperative relaying system based on the characteristic function of the system’s probability density function (PDF) with only one relay. With the approximation of the outage probability expression, three optimization problems are built to minimize the outage probability under different constraints. We use the Lagrange method and Karush–Kuhn–Tucker (KKT) condition to solve the optimization problems to jointly optimize the relay’s PS factors and the transmit power. Numerical results show that our derived expression of the outage probability is accuracy and gives insights into the effect of various system parameters on the performance of protocols. Meanwhile, compared with the no optimal condition, our proposed optimization algorithms can all offer superior performance under different system constraints.

show abstract

Optimization of Cognitive Two-Way Networks With Energy Harvesting Relays

Cited by 26 publications

References 12 publications

On-Site and External Energy Harvesting in Underground Wireless

On-Site and External Energy Harvesting in Underground Wireless

Multisource Power Splitting Energy Harvesting Relaying Network in Half-Duplex System over Block Rayleigh Fading Channel: System Performance Analysis

Outage Analysis and Power Allocation Optimization for Multiple Energy-Harvesting Relay System Using SWIPT

Contact Info

Product

Resources

About