Semi-blind iterative relay selection schemes for amplify-and-forward cooperative relay network

2011 ◽  
Author(s):  
Bin Shen ◽  
Kyungsup Kwak
Keyword(s):  
Relay Selection ◽  
Relay Network ◽  
Cooperative Relay ◽  
Amplify And Forward ◽  
Cooperative Relay Network

Modified genetic algorithm based power allocation scheme for amplify-and-forward cooperative relay network

2018 ◽  
Vol 69 ◽  
pp. 628-641 ◽  
Author(s):  
Anand Gachhadar ◽  
MHD Nour Hindia ◽  
Faizan Qamar ◽  
M. Hassam Shakil Siddiqui ◽  
Kamarul Ariffin Noordin ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Power Allocation ◽  
Relay Network ◽  
Cooperative Relay ◽  
Allocation Scheme ◽  
Amplify And Forward ◽  
Modified Genetic Algorithm ◽  
Cooperative Relay Network

scholarly journals Unmanned aerial vehicle-aided cooperative regenerative relaying network under various environments

2021 ◽  
Vol 11 (6) ◽  
pp. 5153
Author(s):  
Thanh-Luan Nguyen ◽  
Duy-Hung Ha ◽  
Phu Tran Tin ◽  
Hien Dinh Cong
Keyword(s):  
Monte Carlo ◽  
Unmanned Aerial Vehicle ◽  
Ergodic Capacity ◽  
Relay Network ◽  
Cooperative Relay ◽  
Power Splitting ◽  
Amplify And Forward ◽  
High Rise ◽  
Aerial Vehicle ◽  
Cooperative Relay Network

This paper studies a cooperative relay network that comprises an unmanned aerial vehicle (UAV) enabling amplify-and-forward (AF) and power splitting (PS) based energy harvesting. The considered system can be constructed in various environments such as suburban, urban, dense urban, and high-rise urban where the air-to-ground channels are model by a mixture of Rayleigh and Nakagami-m fading. Then, outage probability and ergodic capacity are provided under different environment-based parameters. Optimal PS ratios are also provided under normal and high transmit power regimes. Finally, the accuracy of the analytical results is validated through Monte Carlo methods.

Power Allocation and Relay Selection Algorithm in Multi-Relay Amplify-and-Forward Networks

2014 ◽  
Vol 513-517 ◽  
pp. 3423-3428
Author(s):  
Zhi Kang Zhou ◽  
Qi Zhu
Keyword(s):  
Power Allocation ◽  
Relay Selection ◽  
Relay Network ◽  
Total Power ◽  
Selection Algorithm ◽  
Amplify And Forward ◽  
Power Constraint ◽  
Lower Complexity ◽  
Relay Selection Algorithm ◽  
The Ideal

In this paper, an amplify-and-forward (AF) multi-relay network is considered. In order to minimize the system outage probability, a new power allocation and multi-relay selection algorithm is proposed under total power constraint and each node power constraint. In the proposed algorithm, the ideal of ordering is adopted, which leads to the remarkable decrease of the computation complexity together with simple power reallocation. Simulation results show that the proposed multi-relay selection algorithm performs close to the optimal scheme with optimal power allocation and exhaustive search (OPA-ES) but with much lower complexity.

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