Performance Analysis of Amplify-and- Forward Opportunistic Relaying in Rician Fading

2009 ◽  
Vol 16 (8) ◽  
pp. 643-646 ◽  
Author(s):  
B. Maham ◽  
A. Hjorungnes
Keyword(s):  
Performance Analysis ◽  
Rician Fading ◽  
Amplify And Forward ◽  
Opportunistic Relaying

Optimal Beamforming and Performance Analysis of Wireless Relay Networks with Unmanned Aerial Vehicle

Frequenz ◽  
2015 ◽  
Vol 69 (3-4) ◽  
Author(s):  
Jian Ouyang ◽  
Min Lin
Keyword(s):  
Performance Analysis ◽  
Unmanned Aerial Vehicle ◽  
Large Scale ◽  
Path Loss ◽  
Base Station ◽  
Relay Network ◽  
Rician Fading ◽  
Amplify And Forward ◽  
Aerial Vehicle ◽  
Optimal Beamforming

AbstractIn this paper, we investigate a wireless communication system employing a multi-antenna unmanned aerial vehicle (UAV) as the relay to improve the connectivity between the base station (BS) and the receive node (RN), where the BS–UAV link undergoes the correlated Rician fading while the UAV–RN link follows the correlated Rayleigh fading with large scale path loss. By assuming that the amplify-and-forward (AF) protocol is adopted at UAV, we first propose an optimal beamforming (BF) scheme to maximize the mutual information of the UAV-assisted dual-hop relay network, by calculating the BF weight vectors and the power allocation coefficient. Then, we derive the analytical expressions for the outage probability (OP) and the ergodic capacity (EC) of the relay network to evaluate the system performance conveniently. Finally, computer simulation results are provided to demonstrate the validity and efficiency of the proposed scheme as well as the performance analysis.

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