Datasets for Fast and Secure Key Generation with Channel Obfuscation in Slowly Varying Environments

Introduction:

Datasets for G. Li, H. Yang, J. Zhang, H. Liu and A. Hu, “Fast and Secure Key Generation with Channel Obfuscation in Slowly Varying Environments” , Accepted by IEEE International Conference on Computer Communications  (INFOCOM), Virtual Conference, 2-5. May, 2022, pp. 1-10.

Experimental Setup:

To evaluate the performance of the proposed CO-SKG approach in real environments, we built a hardware testbed using USRP SDR platform. Three USRP N210 SDR platforms embedded with the CBX daughterboards were used as Alice, Bob, and Eve. The experiments were carried out at the 2.535 GHz channel. The USRP receiver received the signal, which was transferred to the PC and processed by MATLAB.To enable the function of antenna scheduling in the CO-SKG approach, Alice was connected with an SP8T switch. We carried out extensive experiments under three slowly varying scenarios, i.e.,
indoor, corridor, and outdoor. Three USRP devices remained stationary, but there might be people or vehicles moving around.

How to use:

• File name: "RAS_..." indicates CSI only measured by random antenna scheduling. File name: "CO-SKG_..." indicates CSI measured by random antenna scheduling and random filtering.
• Each file contains 6 matrices of CSI and a vector of number of antennas.
• "X", "Y" and "Z" indicate Alice, Bob and Eve.
• "abs" indicates magnitude of CSI. "com" indicates complex number of CSI.
• First dimension of CSI matrices indicates the group number of CSI, Second dimension indicates the OFDM subcarriers.