Outage probability analysis for a cognitive amplify-and-forward relay network with single and multi-relay selection

2013 ◽  
Vol 7 (17) ◽  
pp. 1974-1981 ◽  
Author(s):  
Gaojie Chen ◽  
Jonathon Chambers ◽  
Ousama Alnatouh
Keyword(s):  
Outage Probability ◽  
Relay Selection ◽  
Probability Analysis ◽  
Relay Network ◽  
Amplify And Forward

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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