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SEI Makes KD-Cloudlet Software Freely Available

SEI Makes KD-Cloudlet Software Freely Available
August 11, 2015 • Article

August 11, 2015—For several years, SEI researchers on the Pervasive Mobile Computing team have investigated the use of cloud computing at the tactical edge—the environment at the edge of a network infrastructure that is resource constrained, intermittent, and in which users are subject to high levels of stress. This research is based on the concept of cyber foraging, in which the capabilities of resource-limited mobile devices are augmented by available computing resources in the surrounding environment. The research also drove the development of the tactical cloudlets. Hosted on vehicles or other platforms in proximity of mobile users, tactical cloudlets can

  • provide infrastructure to offload expensive computation
  • provide forward data staging for a mission
  • perform data filtering to remove unnecessary data from streams intended for dismounted users
  • serve as collection points for data heading for enterprise repositories

As part of the SEI’s mission to transition the technologies it develops to the larger software engineering community, the SEI has made its implementation of tactical cloudlets, KD-Cloudlet, freely available in its open-source code repository on GitHub. Using KD-Cloudlet, developers can turn any computational node running Linux—from a laptop to a more powerful server—into a discoverable node that can be used by nearby mobile devices for computation offload and data staging.

“KD-Cloudlet can now be used by anyone developing a mobile application that contains computation-intensive code, collects large amounts of data in the field, or uses large amounts of data in the cloud,” said the SEI’s Grace Lewis, deputy lead for the Pervasive Mobile Systems team. “The usage domains that benefit the most from cyber-foraging are resource-constrained environments, such as those experienced by military personnel, first responders, field researchers, or anyone who works disconnected from the enterprise, such as medics, support personnel, or salespeople,” said Lewis. 

The KD-Cloudlet package contains code for implementing a full cyber-foraging system, including cloudlet client and server, as well as a simple example application for speech recognition. 

Interested developers can download the code from the SEI GitHub repository:

For more information about tactical cloudlets, please visit

For more information about the SEI’s Pervasive Mobile Systems team, please visit