December 10, 2018

A Secure End-to-End Cloud Computing Solution for Emergency Management via UAVs

  • Fischer T.
  • Gao J.
  • Knode J.
  • Liao Q.
  • Naseer F.
  • Oechsner C.

To properly determine the severity of an emergency and provide a quick response, information has to be gathered, confirmed, and analyzed. Artificial intelligence assisted UAV can provide a unique perspective and review extensive information for an incident. However, their limited computing capacity and battery duration raise the challenge to compute-intensive mobile applications. In addition, because they serves civilian purposes, the safety and security of UAV communication systems has become critical. To enhance first responders' safety and effectiveness, we developed an end-to-end UAV emergency management system with secure wireless communication links, cloud-based deep learning cognitive algorithms, and easy-to-use mobile interface. We implemented our system onto a hardware platform including Infineon Larix drone, Raspberry Pi and camera, and GPU server. We evaluated the tradeoff between detection accuracy and processing time, and shown that our system achieves end-to-end latency of under 200 ms per frame including data transmission, processing, and reception.

Recent Publications

January 01, 2018

Fair Dynamic Spectrum Management for QRD-Based Precoding with User Encoding Ordering in Downstream G.fast Transmission

In next generation DSL networks such as G.fast, employing discrete multi-tone transmission in high frequencies up to 212 MHz, the crosstalk among lines reaches very high levels. To precompensate the crosstalk in downstream transmission, QRD-based precoding has been proposed as a near-optimal dynamic spectrum management (DSM) technique. However, the performance ...

January 01, 2018

Practical Mitigation of Passive Intermodulation in Microstrip Circuits

This paper presents new experimental evidence and a novel practical approach for mitigation of passive intermodulation (PIM) in microstrip circuits fabricated on commercial printed circuit board laminates. The mechanisms of distributed PIM in microstrip circuits are reviewed and a phenomenology of PIM generation due to locally enhanced electromagnetic fields at ...

January 01, 2018

Efficient Cooperative HARQ for Multi-Source Multi-Relay Wireless Networks

In this paper, we compare the performance of three different cooperative Hybrid Automatic Repeat reQuest (HARQ) protocols for slow-fading half-duplex orthogonal multiple access multiple relay channel. Channel State Information (CSI) is available at the receiving side of each link only. Time Division Multiplexing is assumed, where each orthogonal transmission occurs ...