E3M: An Energy Efficient Emergency Management System using mobile cloud computing

Mobile devices play a vital role for handling emergency situations. During emergency, it is very difficult to collect necessary information from the mobile devices if there is unavailability of networks. In this work, an Energy Efficient Emergency Management System named as E
³
M has been proposed. E
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M supports peer-to-peer communication between mobile devices if a mobile device does not find any suitable networks for communication with the cloud. To make E
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M energy efficient, it selects best available mobile device by forming coalition among devices. One device among them is selected for data communication based on the residual energy of devices if there is no target device found in the range of the source device. The simulation results indicate that E
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M is suitable for emergency conditions where, mobile devices do not find any suitable networks. That means E
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M also works in the absence of any network by considering wireless mesh network technology.