Multi-radio channel rendezvous in cognitive radio networks

2019 ◽  
Vol 13 (10) ◽  
pp. 1433-1442
Author(s):  
Lin Chen ◽  
Kaigui Bian ◽  
Xiaohu Ge ◽  
Wei Chen ◽  
Qingsong Ai ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Channel ◽  
Radio Networks

On Fuzzy Logic-Based Channel Selection in Cognitive Radio Networks

2015 ◽  
pp. 255-274 ◽  
Author(s):  
Yong Yao ◽  
Alexandru Popescu ◽  
Adrian Popescu
Keyword(s):  
Fuzzy Logic ◽  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Environmental Changes ◽  
Radio Channel ◽  
New Technology ◽  
Channel Selection ◽  
Decision Criterion ◽  
Radio Networks ◽  
Competition Level

Cognitive radio networks are a new technology based on which unlicensed users are allowed access to licensed spectrum under the condition that the interference perceived by licensed users is minimal. That means unlicensed users need to learn from environmental changes and to make appropriate decisions regarding the access to the radio channel. This is a process that can be done by unlicensed users in a cooperative or non-cooperative way. Whereas the non-cooperative algorithms are risky with regard to performance, the cooperative algorithms have the capability to provide better performance. This chapter shows a new fuzzy logic-based decision-making algorithm for channel selection. The underlying decision criterion considers statistics of licensed user channel occupancy as well as information about the competition level of unlicensed users. The theoretical studies indicate that the unlicensed users can obtain an efficient sharing of the available channels. Simulation results are reported to demonstrate the performance and effectiveness of the suggested algorithm.

Exact Optimum RAN Selection Algorithm for Heterogeneous-Type Cognitive Radio Networks

2014 ◽  
Vol 1 ◽  
pp. 652-655
Author(s):  
Takumi.Matsui Takumi.Matsui ◽  
Mikio.Hasegawa Mikio.Hasegawa ◽  
Hiroshi.Hirai Hiroshi.Hirai ◽  
Kiyohito.Nagano Kiyohito.Nagano ◽  
Kazuyuki.Aihara Kazuyuki.Aihara
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Selection Algorithm
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