Optimal energy-efficient transmission for hybrid spectrum sharing in cooperative cognitive radio networks

2019 ◽  
Vol 16 (6) ◽  
pp. 150-161 ◽  
Author(s):  
Linna Hu ◽  
Rui Shi ◽  
Minghe Mao ◽  
Zhiyu Chen ◽  
Hongxi Zhou ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Energy Efficient ◽  
Spectrum Sharing ◽  
Radio Networks ◽  
Cooperative Cognitive Radio Networks ◽  
Optimal Energy ◽  
Efficient Transmission

Matching game-based hierarchical spectrum sharing in cooperative cognitive radio networks

2019 ◽  
Vol 76 (8) ◽  
pp. 6195-6218
Author(s):  
Min-Kuan Chang ◽  
Yung-Jen Mei ◽  
Yu-Wei Chan ◽  
Mei-Yu Wu ◽  
Wun-Ren Chen
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Spectrum Sharing ◽  
Radio Networks ◽  
Cooperative Cognitive Radio Networks ◽  
Matching Game

scholarly journals Outage Analysis of Relay-Assisted NOMA in Cooperative Cognitive Radio Networks with SWIPT

Information ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 500
Author(s):  
Kun Tang ◽  
Shaowei Liao
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Spectrum Sharing ◽  
Relay Node ◽  
Radio Networks ◽  
Base Station ◽  
Cooperative Cognitive Radio Networks ◽  
Analytical Results ◽  
Simulation Results ◽  
Outage Probabilities

In this paper, we investigate a relay-assisted cooperative spectrum sharing for the considered non-orthogonal multiple access (NOMA) scheme in cognitive radio networks, where the relay node assists the base station (BS) to transmit the superimposed composite signal to two receivers by utilizing an amplified-and-forward (AF) technique with simultaneous wireless information and power transfer (SWIPT). The exact expressions for outage probabilities of two receivers are derived in closed forms. Moreover, a joint optimization of power allocation and the proportion of information splitting for energy harvesting is proposed in terms of energy efficiency (EE) maximization under required data reliability. Simulation results validate the analytical results since the analytical results match well with simulation results and demonstrate the performance advantages of the proposed scheme over other schemes and direct transmission.

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