A new low-complexity relay selection scheme based on switch-and-examine diversity combining for dual-hop relay networks

2012 ◽  
Author(s):  
Anas M. Salhab ◽  
Salam A. Zummo
Keyword(s):  
Relay Selection ◽  
Relay Networks ◽  
Low Complexity ◽  
Diversity Combining ◽  
Selection Scheme

scholarly journals Virtual-Link Relay Selection Scheme for Buffer-Aided IoT Based Cooperative Relay Networks

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 74648-74659 ◽  
Author(s):  
Hina Nasir ◽  
Nadeem Javaid ◽  
Waseem Raza ◽  
Mohsen Guizani ◽  
Nabil Alrajeh ◽  
...  
Keyword(s):  
Relay Selection ◽  
Relay Networks ◽  
Cooperative Relay ◽  
Virtual Link ◽  
Selection Scheme ◽  
Cooperative Relay Networks

scholarly journals Joint relay and jammer selection in Internet of Things systems

2017 ◽  
Vol 13 (1) ◽  
pp. 155014771668776
Author(s):  
Zhen Li ◽  
Tao Jing ◽  
Yan Huo
Keyword(s):  
Internet Of Things ◽  
Physical Layer Security ◽  
Relay Selection ◽  
Relay Node ◽  
Low Complexity ◽  
Optimal Stopping Problem ◽  
Security Issue ◽  
Selection Scheme ◽  
Programming Solution ◽  
Dynamic Programming Solution

In this article, we consider the physical layer security issue in Internet of Things systems, in which there exist a sensing transceiver pair, a number of candidate nodes, and an eavesdropper. The transceiver pair needs to select a jammer node and a relay node among the candidate nodes so as to preserve the secrecy of the communications. Considering the diversity of candidate channels and the limited available power, it is infeasible to scan all the nodes and find the optimal one. We formulate this jammer and relay selection problem as an optimal stopping problem under a fixed sensing order. Then, through applying dynamic programming solution, we propose a low-complexity approach to obtain the optimal sensing order. The performance of the proposed selection scheme is evaluated through numerical results.

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