scholarly journals Cognitive Radio Networks With Primary Receiver Assisted Interference Avoidance Protocol

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 1224-1235 ◽  
Author(s):  
Xiaoshi Song ◽  
Xiangbo Meng ◽  
Xile Shen ◽  
Chao Jia
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Interference Avoidance ◽  
Primary Receiver

scholarly journals Interference Aware Routing Protocols for Underlay Cognitive Radio Networks

2021 ◽  
Vol 15 ◽  
pp. 6-9
Author(s):  
Sami Touati ◽  
Hatem Boujemaa ◽  
Nazha Abed
Keyword(s):  
Cognitive Radio ◽  
Outage Probability ◽  
Cognitive Radio Networks ◽  
Routing Protocols ◽  
Radio Networks ◽  
Optimal Routing ◽  
Underlay Cognitive Radio ◽  
And Performance ◽  
The One ◽  
Primary Receiver

In this paper, optimal and sub-optimal routing protocols are proposed for cognitive radio networks. We first investigate optimal routing that consists in searching among all paths, the one that minimizes the end-to-end outage while verifying interference constraint to primary receiver. A sub-optimal one-hop routing is proposed where the best relay is selected in each hop. The last routing protocol consists in decomposing the network in many sub-networks composed of K hops. Then the best route is determined in each of these sub-networks so that the K hops-outage probability is minimized. The proposed K-hops routing allows a good compromise between complexity and performance. The performance of different routing protocols are evaluated through simulation results in terms of outage probability.

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