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.

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

Performance Evaluation of GSM Traffic Transmission over Cognitive Radio Networks under Opportunistic Spectrum Sharing Collisions

2014 ◽  
pp. 152-173
Author(s):  
Abdelaali Chaoub ◽  
Elhassane Ibn-Elhaj
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Spectrum Sharing ◽  
High Reliability ◽  
Radio Networks ◽  
Base Station ◽  
New Paradigm ◽  
Secondary Users ◽  
Secondary Use ◽  
Opportunistic Spectrum Sharing

Cognitive Radio networks and channel sharing are emerging as a new paradigm of communication in multimedia and wireless networks. In this chapter, the authors consider a secondary use application that consists of carrying TDMA traffic between the mobile and the base station for GSM networks over a Cognitive Radio network. Therefore, packets are not only lost by reason of Primary traffic interruptions, but the authors consider the opportunistic spectrum sharing which is the cornerstone of the Cognitive Radio concept as the major cause of collisions between several Secondary Users. The authors introduce their specific collision model, and they propose a solution consisting of the creation of many secondary user links with high reliability using a specific algorithm introduced here to alleviate traffic collisions. The authors evaluate the secondary traffic transmission performance in view of the Spectral Efficiency, and they outline the achieved gains of using the proposed solution. Finally, the authors highlight the recent trend in CR literature, which consists of leveraging the TV white spaces to deploy and enhance next generation cellular networks such as LTE.

scholarly journals Spectrum sharing in multi-channel cooperative cognitive radio networks: a coalitional game approach

2013 ◽  
Vol 19 (7) ◽  
pp. 1553-1562 ◽  
Author(s):  
Yu-Wei Chan ◽  
Feng-Tsun Chien ◽  
Ronald Y. Chang ◽  
Min-Kuan Chang ◽  
Yeh-Ching Chung
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Spectrum Sharing ◽  
Radio Networks ◽  
Coalitional Game ◽  
Cooperative Cognitive Radio Networks
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