Open AccessDesign of an Emergency Wake‐up Alert System Utilizing Digital Television Guard Band
Author(s) -
Ryu Kwanwoong,
Lee YouSeok,
Seo JaeHyun,
Kim Heung Mook
Publication year - 2016
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.16.2615.0039
Subject(s) - digital television , guard (computer science) , computer science , wake , telecommunications , real time computing , engineering , programming language , aerospace engineering
In this paper, we propose an emergency wake‐up alert system (EWAS) for providing accurate and rapid emergency information. The proposed system can provide an emergency wake‐up alert service without an additional frequency allotment by utilizing the guard band of the Advanced Television Systems Committee (ATSC) Terrestrial Digital Television (DTV) system. The design target of the proposed system is to match the indoor reception coverage of EWAS with the outdoor reception coverage of the ATSC DTV system. To achieve this, the proposed system should be about 35.65 dB more robust than the ATSC DTV system. The simulation results show that the proposed system offers an emergency wake‐up alert service supporting a data rate of up to 23 bps.