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JBE, vol. 26, no. 2, pp.197-207, March, 2021


A Supplementary Service Technology for Enhanced Receiver Performance of Emergency Alert Broadcast Based on 5G Cellular Communications

Sekchin Chang

C.A E-mail:


he emergency alert broadcast service based on cellular communications is defined as CBS. However, the CBS just supports a limited text message, which might be unavailable to foreigners, who are unfamiliar with local characters. The CBS protocol relies on a broadcast mechanism. Such a broadcast technology exhibits that the number of outage users significantly increases under poor channel conditions. In this paper, we present a supplementary service technology for 5G CBS, which considerably enhances the accessibility of foreigners and illiterate persons, and the receiver performance. For the enhanced receiver performance, the proposed supplementary service approach effectively exploits the device-based geo-targeting capability that the 5G CBS can afford to offer.

Keyword: Supplementary Service, Emergency Alert Broadcast, 5G Cellular Communications

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