Outage Performance of Cognitive Relay Networks With Wireless Information and Power Transfer

Zheng, Yang; Ding, Zhiguo; Fan, Pingzhi; Karagiannidis, George K.

doi:10.1109/tvt.2015.2443875

Cited by 110 publications

(79 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(4) When is proportional to , a full diversity order can be attained. A similar conclusion was made in [25], where a different EH-based CRN system was investigated.…”

Section: Resultssupporting

confidence: 75%

“…It is worth noting that the condition of = implies that the impact of the interference is nonnegligible regardless of the transmit power of secondary nodes [25].…”

Section: Proof See Appendix Bmentioning

confidence: 99%

“…They performed exact analysis of the outage probability as well as asymptotic analysis when the number of primary nodes goes to infinity. An analysis of outage probability in EH-based CRN with the PSR protocol was investigated in [25]. CRN with the PSR protocol was further investigated in [26] in which outage performance, energyrate trade-off, and energy efficiency metrics were analyzed and optimized.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Outage Probability Analysis in Power-Beacon Assisted Energy Harvesting Cognitive Relay Wireless Networks

2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

We study the performance of the secondary relay system in a power-beacon (PB) assisted energy harvesting cognitive relay wireless network. In our system model, a secondary source node and a relay node first harvest energy from distributed PBs. Then, the source node transmits its data to the destination node with the help of the relay node. Also, fading coefficients of the links from the PBs to the source node and relay node are assumed independent but not necessarily identically distributed (i.n.i.d) Nakagami-random variables. We derive exact expressions for the power outage probability and the channel outage probability. Based on that, we analyze the total outage probability of the secondary relay system. Asymptotic analysis is also performed, which provides insights into the system behavior. Moreover, we evaluate impacts of the primary network on the performance of the secondary network with respect to the tolerant interference threshold at the primary receiver as well as the interference introduced by the primary transmitter at the secondary source and relay nodes. Simulation results are provided to validate the analysis.

show abstract

“…(4) When is proportional to , a full diversity order can be attained. A similar conclusion was made in [25], where a different EH-based CRN system was investigated.…”

Section: Resultssupporting

confidence: 75%

“…It is worth noting that the condition of = implies that the impact of the interference is nonnegligible regardless of the transmit power of secondary nodes [25].…”

Section: Proof See Appendix Bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Outage Probability Analysis in Power-Beacon Assisted Energy Harvesting Cognitive Relay Wireless Networks

2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…For given λ 0 and μ ≥ 0, we obtain the first order optimality condition for problem (9) by setting the partial derivative of L(λ, μ, τ, P) with respect to τ and P i (i = 1, 2, . .…”

Section: Appendix B Proof Of Theoremmentioning

confidence: 99%

Harvesting-Throughput Tradeoff for CDMA-Based Underlay Cognitive Radio Networks With Wireless Energy Harvesting

Zheng

Liang

Huang

2018

IEEE Systems Journal

View full text Add to dashboard Cite

Abstract-This paper considers a green cognitive radio network wherein each secondary user (SU) is solely powered by an energy harvester which extracts energy from RF signals of a primary user transmitter. Each SU operates in a harvesting-transmitting fashion periodically. In each period, all SUs first harvest energy for a fixed duration and then transmit data using the harvested energy to one access point for the rest of the period in the code-division multiple access method. Considering the intrinsic harvestingthroughput tradeoff, we jointly optimize the harvesting time and transmit powers of SUs to maximize the sum throughput of the network, subject to the primary interference constraint and the energy causality constraint. Despite of the nonconvex nature of the formulated optimization problem, we find an equivalent but convex substitution to the original problem. Then, we propose a dual-decomposition-based solution method to solve the problem. Simulations finally demonstrate the efficiency of this paper.

show abstract

“…From equation (9), the SOP of the TSR strategy increases as b increases from 0 to 1. This is because a larger b results in more transmission power consumed in source information, which in turn decreases transmission power of the jamming signal.…”

Section: Energy Harvesting and Information Processingmentioning

confidence: 99%

Security–reliability tradeoff analysis of untrusted energy harvesting relay networks

Chen

Yang

et al. 2018

International Journal of Distributed Sensor Networks

View full text Add to dashboard Cite

We investigate secure communications in untrusted energy harvesting relay networks, where the amplify-and-forward relay is an energy constrained node powered by the received radio frequency signals, and try to unauthorizedly decode the confidential information from the source. The secrecy outage probability and connection outage probability are respectively derived in closed-form to evaluate the security and reliability for three energy harvesting strategies, for example, time switching relaying strategy, power splitting relaying strategy, and ideal relaying receiver strategy. Subsequently, the effective secrecy throughput is conducted to characterize the overall efficiency, and the asymptotic analysis of the secrecy throughput is given to determine the optimal energy harvesting strategies in different operating regimes. Furthermore, in order to achieve the optimal effective secrecy throughput performance, a switching threshold between time switching relaying and power splitting relaying is designed. Numerical results verify the accuracy of the analytical expressions and reveal that the effective secrecy throughput of the system can be effectively promoted by the threshold switching energy harvesting strategy.

show abstract

Outage Performance of Cognitive Relay Networks With Wireless Information and Power Transfer

Cited by 110 publications

References 17 publications

Outage Probability Analysis in Power-Beacon Assisted Energy Harvesting Cognitive Relay Wireless Networks

Outage Probability Analysis in Power-Beacon Assisted Energy Harvesting Cognitive Relay Wireless Networks

Harvesting-Throughput Tradeoff for CDMA-Based Underlay Cognitive Radio Networks With Wireless Energy Harvesting

Security–reliability tradeoff analysis of untrusted energy harvesting relay networks

Contact Info

Product

Resources

About