NOMA based cognitive relaying: Transceiver hardware impairments, relay selection policies and outage performance comparison

2019 ◽  
Vol 146 ◽  
pp. 144-154 ◽  
Author(s):  
Dinh-Thuan Do ◽  
Anh-Tu Le
Keyword(s):  
Relay Selection ◽  
Performance Comparison ◽  
Outage Performance ◽  
Hardware Impairments ◽  
Selection Policies

BER Performance Comparison of AF and DF Assisted Relay Selection Schemes in Cooperative NOMA Systems

2021 ◽  
Author(s):  
Inci Umakoglu ◽  
Mustafa Namdar ◽  
Arif Basgumus ◽  
Ferdi Kara ◽  
Hakan Kaya ◽  
...  
Keyword(s):  
Relay Selection ◽  
Performance Comparison ◽  
Ber Performance

scholarly journals Impact of Hardware Impairments on Outage Performance of Hybrid Satellite-Terrestrial Relay Systems

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 35103-35112 ◽  
Author(s):  
Hang Wu ◽  
Yulong Zou ◽  
Weifeng Cao ◽  
Zhong Chen ◽  
Theodoros A. Tsiftsis ◽  
...  
Keyword(s):  
Outage Performance ◽  
Hardware Impairments ◽  
Relay Systems

scholarly journals Outage Performance of CRNs with Best Relay Selection in Dependent Nonidentical Distributed Nakagami-m Channels

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Zongsheng Zhang ◽  
Jinlong Wang ◽  
Qihui Wu ◽  
Xurong Pi
Keyword(s):  
Closed Form ◽  
Fading Channels ◽  
Relay Selection ◽  
Closed Form Expression ◽  
Form Expression ◽  
Outage Performance ◽  
Interference Temperature ◽  
Primary Users ◽  
Best Relay Selection ◽  
The Impact

The outage performance with best relay selection is proposed for cognitive relay networks with multiple primary users in independent nonidentical distributed Nakagami-m fading channels. Specifically, we take the interference temperature and fading severity into consideration. Exact closed-form expression of outage probability is derived. Based on the exact closed-form expression, we can evaluate the impact of interference temperature, fading severity, number of relays, and number of primary users on the secondary network. Finally, the effects of fading severity, number of relays, number of primary users, and interference temperature on the system performance are examined through some representative numerical plots, and the Monte Carlo results match perfectly with theory results which validates our theory analysis.

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