An Efficient Multiplexing Method of T-DMB and Cell Broadcast Service in Emergency Alert Systems

作者：Song Mihwa^*; Jun Kyungho; Chang Sekchin

来源：IEEE Transactions on Consumer Electronics, 2014, 60(4): 549-557.

DOI：10.1109/TCE.2014.7027286

• multiplexing
• T-DMB
• cell broadcast service
• emergency alert system

This paper presents a novel multiplexing method of T-DMB and cell broadcast service for robust emergency alert service in mobile stations. In the method, the cell broadcast service is used as a primary device for detection of an emergency alert message. If a detection outage occurs, the T-DMB is enabled as a secondary device for detection of the alert message, which guarantees more reliable alert message delivery. For better detection performance of emergency alert messages in the T-DMB, a channel estimation scheme is proposed, which is based on a divide-and-conquer algorithm. The presented estimation approach effectively exploits the phase reference symbol of T-DMB. The simulation results confirm that the multiplexing and channel estimation approaches produce better alert delivery performance in an emergency alert system (1).

• 出版日期2014-11