Title
Joint optimization of sensing time and cooperative user in cognitive radio
Abstract
We proposed a new cognitive radio (CR) model in this paper whereby CR senses the environment periodically and then forwards the sensing results one at a time and through such process CR develops an efficiency function to reflect the performance and efficiency of the proposed model. In addition we proposed a joint algorithm of sensing time and a cooperative user in order to obtain the maximal efficiency of the CR network. Results obtained from simulations process shows that the efficiency of the proposed algorithm is predominant and when SNR=0dB, it holds 0.4W more residual power than that of sensing-throughput tradeoff model. And lastly we shows that cooperative detection can improve the efficiency of the model, however the results also shows that the efficiency of the model may degrade when large numbers of cooperative CRs are involved in the process.
Year
DOI
Venue
2012
10.1109/ChinaCom.2012.6417500
Communications and Networking in China
Keywords
DocType
Volume
cognitive radio,cooperative communication,optimisation,sensors,CR network,cognitive radio,cooperative CR,cooperative detection,cooperative user,efficiency function,model efficiency,power 0.4 W,residual power,sensing time joint optimization,sensing-throughput tradeoff model,cognitive radio,cooperative detection,energy detection,joint optimization
Conference
null
Issue
ISSN
ISBN
null
null
978-1-4673-2697-1
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Qingzhong Li100.34
Xuezhi Tan28014.98
Xin Liu3313.05