scholarly journals Combined Optimization of Clustering Using Artificial Bee Colony Algorithm and Cooperative Beamforming in Green Cognitive Radio Networks with Relays

2016 ◽  
Vol 24 ◽  
pp. 888-895 ◽  
Author(s):  
Ashok S. Kumar ◽  
T. Sudha
Author(s):  
Ahmad Ghasemi ◽  
Alireza Fakharzadeh Jahromi ◽  
Mohammad Ali Masnadi-Shirazi ◽  
Mehrzad Biguesh ◽  
Foad Ghasemi

Author(s):  
Cesar Hernandez ◽  
Jorge Rodriguez ◽  
Diego Giral

Cognitive radio through dynamic spectrum allocation allows an efficient use of the radio-electric spectrum. It is a key subject for the performance of cognitive radio networks. The purpose of the present article is to develop a spectrum allocation model for cognitive wireless networks based on the Artificial Bee Colony algorithm and assess its performance in spectrum occupancy traces obtained from monitoring the spectrum using the energy detection technique. Results show a reduction in the number of spectral handoff with no excessive execution times.


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