Outage analysis of cognitive hybrid satellite-terrestrial networks with hardware impairments and multi-primary users
journal contributionposted on 13.08.2018, 13:12 by Kefeng Guo, Kang An, Bangning Zhang, Yuzhen Huang, Gan Zheng
This paper investigates the effects of practical hardware impairments (HIs) on a cognitive hybrid satellite-terrestrial networks (CHSTN) with multiple primary users (PUs). The widely-employed Shadowed-Rician fading distribution is adopted to model the satellite-terrestrial channel. CHSTN can provide comprehensive wireless coverage as well as enhanced spectrum resource usage by considering the requirements of both spectrum efficiency and reliability. Specifically, we derive the closed-form expression of the outage probability (OP) for the considered system in the presence of interference power constraints imposed by multiple adjacent terrestrial PUs. To gain further insights at high signal-to-noise ratios (SNRs), the asymptotic expression for the OP is also derived. Numerical results confirm the correctness and effectiveness of our performance analysis.
This work was supported by the National Science Foundation of China (No. 61401508), and (No. 61471392), the Jiangsu Provincial Natural Science Foundation of China (No.20150719) and the work of G. Zheng was supported by the UK EPSRC under grant EP/N007840/1, and the Leverhulme Trust under grant number RPG-2017-129.
- Mechanical, Electrical and Manufacturing Engineering