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http://dx.doi.org/10.5909/JBE.2014.19.3.415

A Cognitive Radio Technology for Retransmission in Cellular-Based Emergency Alert Broadcast Systems  

Song, Mihwa (School of Electrical and Computer Engineering, University of Seoul)
Chang, Sekchin (School of Electrical and Computer Engineering, University of Seoul)
Publication Information
Journal of Broadcast Engineering / v.19, no.3, 2014 , pp. 415-418 More about this Journal
Abstract
The CBS methodology has been standardized in order to make a rapid broadcast of emergency alert message for cellular users. However, the standard does not specify a retransmission request mechanism in the case that the users fail in receiving the alert message. Therefore, we propose a retransmission request scheme based on cognitive radio for the CBS technology in this letter. The simulation results confirm that our proposed scheme is very suitable for the retransmission method in CBS-based emergency alert broadcast systems.
Keywords
CBS; Alert; Broadcast; Cognitive Radio;
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