On the Performance of Adaptive Decode-and-Forward Cooperative Diversity with the Nth Best-Relay Selection Scheme

2009 ◽  
Author(s):  
Salama S. Ikki ◽  
Mohamed H. Ahmed
Keyword(s):  
Relay Selection ◽  
Cooperative Diversity ◽  
Decode And Forward ◽  
Selection Scheme ◽  
Best Relay Selection

Relay Selection-aware Non-orthogonal Multiple Access Networks: Direct and Relaying Mode

2020 ◽  
Vol 13 (3) ◽  
pp. 348-354
Author(s):  
Dinh-Thuan Do ◽  
Minh-Sang V. Nguyen
Keyword(s):  
Relay Selection ◽  
Multiple Access ◽  
Decode And Forward ◽  
Selection Scheme ◽  
Fixed Power ◽  
Transmission Quality ◽  
Improved Performance ◽  
Outage Probabilities ◽  
Future Work ◽  
The Impact

Objective: In this paper, Decode-and-Forward (DF) mode is deployed in the Relay Selection (RS) scheme to provide better performance in cooperative downlink Non-orthogonal Multiple Access (NOMA) networks. In particular, evaluation regarding the impact of the number of multiple relays on outage performance is presented. Methods: As main parameter affecting cooperative NOMA performance, we consider the scenario of the fixed power allocations and the varying number of relays. In addition, the expressions of outage probabilities are the main metric to examine separated NOMA users. By matching related results between simulation and analytical methods, the exactness of derived formula can be verified. Results: The intuitive main results show that in such cooperative NOMA networks, the higher the number of relays equipped, the better the system performance can be achieved. Conclusion: DF mode is confirmed as a reasonable selection scheme to improve the transmission quality in NOMA. In future work, we will introduce new relay selections to achieve improved performance.

scholarly journals Bit error rate of underlay decode-and-forward cognitive networks with best relay selection

2015 ◽  
Vol 17 (2) ◽  
pp. 162-171 ◽  
Author(s):  
Khuong Ho-Van ◽  
Paschalis C. Sofotasios ◽  
George C. Alexandropoulos ◽  
Steven Freear
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Relay Selection ◽  
Cognitive Networks ◽  
Decode And Forward ◽  
Best Relay Selection

scholarly journals Coverage Analysis of Millimeter Wave Decode-and-Forward Networks With Best Relay Selection

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 22670-22683 ◽  
Author(s):  
Khagendra Belbase ◽  
Zhang Zhang ◽  
Hai Jiang ◽  
Chintha Tellambura
Keyword(s):  
Millimeter Wave ◽  
Relay Selection ◽  
Decode And Forward ◽  
Best Relay Selection ◽  
Coverage Analysis
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