Outage analysis of cognitive relay networks with energy harvesting and information transfer

Wang, Zihao; Chen, Zhiyong; Luo, Ling; Hu, Zixia; Xia, Bin; Liu, Hui

doi:10.1109/icc.2014.6884004

Cited by 45 publications

(36 citation statements)

References 18 publications

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“…The performance of an energy harvesting amplify-andforward relay with multiple antennas, have been studied in [14]. Furthermore, in [15] and [16], the authors studied the outage performance of energy harvesting in cooperative CR networks, where the secondary transmitter and the relay are powered by the energy harvested from the signals transmitted by the primary user.…”

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confidence: 99%

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

Zheng

Ding

Fan

et al. 2016

IEEE Trans. Veh. Technol.

111

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Abstract-In this paper, we consider an underlay cognitive radio (CR) networks with one primary receiver, one cognitive transmitter-receiver pair, and one energy harvesting relay. The transmission power of the secondary source is determined opportunistically by its interference to the primary receiver, and the relay transmission is powered by the energy harvested from the radio frequency observations at the relay. For the considered CR networks with simultaneous wireless information and power transfer (SWIPT), we derive analytical expressions for the outage probability, as well as their high signal-to-noise ratio (SNR) approximations in closed-form. The developed analytical results demonstrate that the use of SWIPT will not cause any loss of diversity gain, but the outage probability achieved by the SWIPT-CR scheme asymptotically decays as, whereas a decaying rate ofis achieved by a conventional CR network. Computer simulation results are also provided to demonstrate the accuracy of the presented analysis.Index Terms-Cognitive radio systems, decode-and-forward, simultaneous wireless information and power transfer, energy harvesting.

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confidence: 99%

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

Zheng

Ding

Fan

et al. 2016

IEEE Trans. Veh. Technol.

111

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“…The EH relay harvests the energy from the received signals using the PS scheme. In [21], the primary and secondary data outage probability and the rate-energy tradeoff between the maximum ergodic capacity and the maximum harvested energy in the secondary network were analyzed in an AF cognitive relay network where the ST and the SR have energy harvesting capabilities using the PS scheme. Moreover, ST acts as a relay for the primary transmission, harvests the energy from the primary signal, and forwards the primary signal and transmits to its receiver simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Prioritizing Data/Energy Thresholding-Based Antenna Switching for SWIPT-Enabled Secondary Receiver in Cognitive Radio Networks

Benkhelifa

Alouini

2017

IEEE Trans. Cogn. Commun. Netw.

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“…[10][11][12][13][14][15][16] The authors in Wang et al 10 derived the OP of a nonrelay-assisted SNet, which shares the spectrum of the primary network (PNet) and harvests energy while assisting primary transmission, and hence the secondary users (SUs) can harvest sufficient wireless energy to process the information in their network. [10][11][12][13][14][15][16] The authors in Wang et al 10 derived the OP of a nonrelay-assisted SNet, which shares the spectrum of the primary network (PNet) and harvests energy while assisting primary transmission, and hence the secondary users (SUs) can harvest sufficient wireless energy to process the information in their network.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, due to the benefits of EH and CRNs, many works have focused on novel models to improve the system performance as in literature. [10][11][12][13][14][15][16] The authors in Wang et al 10 derived the OP of a nonrelay-assisted SNet, which shares the spectrum of the primary network (PNet) and harvests energy while assisting primary transmission, and hence the secondary users (SUs) can harvest sufficient wireless energy to process the information in their network. In Yang et al, 11 the authors considered underlay CRNs with one secondary transmitter-receiver pair, one EH secondary relay, and the presence of one primary receiver.…”

Section: Introductionmentioning

confidence: 99%

Wireless powered underlay cognitive radio network with multiple primary transceivers: Energy constraint, node arrangement, and performance analysis

Nguyen

Nam

2017

Int J Communication

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This paper considers a cognitive radio-assisted wireless information and power transfer system consisting of multipair of transceiver in primary network and 2-hop relaying link in secondary network. In this investigation, a decoded-and-forwardassisted relay node and power splitting protocol are deployed to obtain ability of wireless energy transfer. The relay node harvests energy from the radio frequency signals of the secondary transmitter and primary transmitters in data transmission to the destination by reusing the licensed spectrum resource. We propose 2 policies for wireless power transfer at the relay, namely, (1) multisource power transfer and(2) single-source power transfer. To evaluate performance under energy harvesting regime, we derive the closed-form outage probability expressions and achievable throughput of the secondary network in delay-limited transmission mode. In addition, we investigate the impact of various system parameters including number of primary transceivers, primary outage threshold, and position arrangement of nodes in primary transceivers on the outage performance of the proposed scheme. Furthermore, we evaluate the system energy efficiency to show trade-off metric of energy consumption and throughput. Performance results are presented to validate our theoretical derivation and illustrate the impacts of various system parameters.An important result is that the secondary network is more beneficial than harmful from the primary interference under power constraint and reasonable node location arrangement. , The transmit power constraint of ST by primary outage; P 2 , The transmit power constraint of RL by primary outage; P ST , The maximum allowed transmit power of ST; P RL , The maximum allowed transmit power of RL; MS, Multisource; SS, Single-source.for application development in green communication. [1][2][3][4][5] Energy harvesting has been considered as promising solution to prolong the lifetime in energy constrained wireless network. Moreover, it plays a significant role in cooperative Int J Commun Syst. 2017;30:e3372.wileyonlinelibrary.com/journal/dac

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Outage analysis of cognitive relay networks with energy harvesting and information transfer

Cited by 45 publications

References 18 publications

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

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

Prioritizing Data/Energy Thresholding-Based Antenna Switching for SWIPT-Enabled Secondary Receiver in Cognitive Radio Networks

Wireless powered underlay cognitive radio network with multiple primary transceivers: Energy constraint, node arrangement, and performance analysis

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