AON: A Survey on Emergency Communication Systems during a Catastrophic Disaster.

JUNE 2013 Uttarakhand flash-flood killed nearly 5700 people and trapped 110,000. The disaster caused a black-out, leading to a serious network failure which delayed rescue work in isolated areas. The lack of robust communication network has become a sizable topic for scrutiny of disaster inflicted area network system. Thus, it is important to design a network which never fails during such crisis. In this paper, a detailed survey of AONs (Always-On Network) is done and issues in implementation of those are highlighted. The architecture of existing networks has several practical issues in case of emergency which need to be addressed. [ABSTRACT FROM AUTHOR]