Outage analysis and impairments allocation of two-way opportunistic relaying network with hardware impairments
Kefeng Guo, Daoxing Guo, Bangning Zhang, Yuzhen Huang · 2016
The hardware impairments of physical transceivers that create distortions degrade the performance of communication. In this paper, we investigate the impact of hardware impairments on the outage performance of two-way cooperative networks with opportunistic relay selection. Specifically, the exact closed-form and asymptotic expressions for the outage probability are derived over Rayleigh fading channel, based on which the impact of key system parameters on the outage performance can be easily evaluated. Moreover, the asymptotic results reveal that the outage floor appears when the hardware impairments exist. What's more, the allocation of the fixed hardware impairments is given, which can direct us how to allocate the hardware impairments. In addition, numerical results are also provided to prove the correctness of the analytical results.