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In early 2017, Cyclone Debbie caused widespread damage and disruption to electricity supply and other infrastructure in Queensland and New South Wales. This placed considerable strain on citizens and responders alike, as they sought to find ways to keep their mobile telephones charged. Despite the advance warning of the cyclone, news reports suggest that considerable portions of the population were...
Ad-hoc Wi-Fi is well known in disaster communications systems, because of its ability to form infrastructure-free peer-to-peer networks. However, ad-hoc Wi-Fi has a major disadvantage due to the lack of coordinating infrastructure: Its energy consumption is very high, reducing battery life to as little as 1.5 hours. Thus, while it would be highly desirable for mobile phones to use ad-hoc Wi-Fi communications...
Smart-phones are useful in disaster response. However, they have limited battery life, and during disaster situations, there may be fewer opportunities to recharge them. The result is that the endurance of a smart-phone on a single charge may become a limiting factor to the utility of smart-phones in such circumstances. None of this is controversial. However, and perhaps because of this, there has...
The battery life of most mobile phones is insufficient to enable their effective use throughout a disaster or emergency situation, without requiring recharging. Therefore in this paper we survey and classify a number of strategies that can be used in either disaster response or for people living beyond the reach of ubiquitous reliable mains electricity supply. In doing so, we aim to make available...
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