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Outage performance analysis of two-way underlay cognitiverelay network with energy harvesting(PDF)


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Outage performance analysis of two-way underlay cognitiverelay network with energy harvesting
Luo Yi12Shi Ronghua1Dong Jian1Feng Zhuohui2
1.School of Information Science and Engineering,Central South University,Changsha 410083,China; 2.College of Information Science and Engineering,Hunan Normal University,Changsha 410081,China
energy harvesting two-way cognitive relay networks hardware impairment model multiple antennas power-beacon Rayleigh block fading channel
Aiming at the problems of the short lifetime and low transmission efficiency of energy-constrained network with hardware impairments,an underlay two-way cognitive relay network is proposed based on a hardware impairment model and energy harvesting assisted by amulti-antenna power-beacon(PB). The transmission power of the secondary network nodes is determined by the radio frequency signal energy collected from the multi-antenna PB and the interference constraints of the multi primary receivers. The exact and asymptotic closed-form solutions of the secondary network’s outage probability for Rayleigh block fading channel are derived. The theoretical analysis and Monte Carlo simulation results show that the outage probability of the secondary network reduces with the increase of the number of PB’s antennas and their transmission power,interference constraints of the primary network and its energy conversion efficiency; the outage probability of the secondary network increases with the increase of the number of primary receiver nodes,the level of hardware impairments of secondary network nodes and the distance between PB and the secondary network.


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Last Update: 2019-06-30