Outage Performance of Optimal Relay Selection and Adaptive Antenna Configuration in Bidirectional Full-Duplex Amplify-and-Forward Relay Network

Author(s):  
R. Rajesh ◽  
P. S. Mallick ◽  
S. J. Thiruvengadam
Author(s):  
R. Rajesh ◽  
P. G. S. Velmurugan ◽  
S. J. Thiruvengadam ◽  
P. S. Mallick

In this paper, a bidirectional full-duplex amplify- and-forward (AF) relay network with multiple antennas at source nodes is proposed. Assuming that the channel state information is known at the source nodes, transmit antenna selection and maximal ratio combining (MRC) are employed when source nodes transmit information to the relay node and receive information from the relay node respectively, in order to improve the overall signal-to-interference plus noise ratio (SINR). Analytical expressions are derived for tight upper bound SINR at the relay node and source nodes upon reception. Further, losed form expressions are also derived for end-to-end outage probability of the proposed bidirectional full-duplex AF relay network in the Nakagami-m fading channel environment. Although self-interference at the relay node limits the performance of the full-duplex network, the outage performance of the proposed network is better than that of conventional bidirectional full-duplex and half-duplex AF relay networks, due to the selection diversity gain in TAS and diversity and array gain in MRC.


2014 ◽  
Vol 513-517 ◽  
pp. 3423-3428
Author(s):  
Zhi Kang Zhou ◽  
Qi Zhu

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.


2019 ◽  
Vol 68 (6) ◽  
pp. 6142-6146 ◽  
Author(s):  
Bakhtiar Ali ◽  
Jawad Mirza ◽  
Juping Zhang ◽  
Gan Zheng ◽  
Saqib Saleem ◽  
...  

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 163594-163607
Author(s):  
Sergey Shaboyan ◽  
Alireza S. Behbahani ◽  
Ahmed M. Eltawil

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