"Cyber-foraging is a technique for dynamically augmenting the computing power of resource-limited mobile devices by opportunistically exploiting nearby fixed computing infrastructure. Cloudlet-based cyber-foraging relies on discoverable, generic, forward-deployed servers located in single-hop proximity of mobile devices. We define 'tactical cloudlets' as the infrastructure to support computation offload and data staging at the tactical edge. However, the characteristics of tactical environments--such as dynamic context, limited computing resources, disconnected-intermittent limited (DIL) network connectivity, and high levels of stress--pose a challenge for the continued operations of mobile systems that leverage cloudlets in tactical environments. We also define 'survivability of mobile systems' as the capability of a system to continue functioning in spite of adversity. This report presents an architecture and experimental results that demonstrate that cyber-foraging using tactical cloudlets increases the survivability of mobile systems."
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