Paper Info
Title
Joint relay-user selection in energy harvesting relay network with direct link.
Abstract
In this paper, a joint relay-user selection (JRUS) scheme is proposed for an amplify-and-forward full-duplex (FD) relay network which includes one source node, multi-relay node and multi-user node, and the direct link between the source node and the user node is considered to convey information. Each FD relay node is energy-constrained and the simultaneous wireless information and power transfer technology is employed to harvest energy. A power splitter at each FD relay node splits the received signals into two components for energy harvesting and information processing. The implementation of the proposed JRUS scheme includes two steps: (1) the optimal user node is selected according to signal-to-noise ratio of the direct link between the source node and the user nodes; (2) the optimal energy harvesting relay node with optimal power splitting (PS) factor is picked out based on signal-to-interference-plus-noise ratio of the relaying link. The outage probability of the investigated relay network with the JRUS scheme is derived. In order to characterize the diversity order, we further present the asymptotic outage probability at high SNR. Moreover, the optimal PS factor of each relay node is calculated by minimizing the outage probability of the reconstructed relay network. Finally, numerical results demonstrate the accuracy of our performance analysis and the efficiency of the proposed scheme.
Year
DOI
Venue
2018
10.1016/j.phycom.2018.03.014
Physical Communication
Keywords
Field
DocType
Energy harvesting,Full-duplex relay,Power splitter,Direct link,Outage probability
Wireless,Information processing,Computer science,Energy harvesting,Computer network,Splitter,Relay network,Maximum power transfer theorem,Outage probability,Relay
Journal
Volume
ISSN
Citations 
28
1874-4907
1
PageRank 
References 
Authors
0.35
16
2
Name
Order
Citations
PageRank
Chenchen Liu19017.45
Tiejun Lv266997.19