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August 2022 Helikite Spectrum Measurements (Packapalooza)

Lead Experimenter

Ozgur Ozdemir, North Carolina State University

Link to Dataset

  • Dataset Link: The dataset includes power spectrum measurements and GPS logs that are collected at a Helikite in an urban environment. The SigMF format dataset including format conversion codes can be accessed here [Dryad].
  • Post Processing Code: Post-processing Matlab codes for the dataset to generate representative results can be accessed here [download].

Equipment and Software Used

LPN on Helikite, USRP B205mini on LPN, UHD1 Spectrum monitoring software


AERPAW flew its helikite platform at NC State’s Packapalooza festival on Aug. 27th. AERPAW portable nodes with two USRPs were attached to the helikite platform for collecting spectrum occupancy and 4G/5G link quality data throughout the day at altitudes up to 400 feet.


  1. A. H. F. Raouf, S. J. Maeng, I. Guvenc, O. Ozdemir, and M. L. Sichitiu, "Spectrum Monitoring and Analysis in Urban and Rural Environments at Different Altitudes", in Proc. IEEE Veh. Technol. Conf. (VTC), Florence, Italy, June 2023.
  2. S. J. Maeng, O. Ozdemir, I. Guvenc, M. Sichitiu, R. Dutta, M. Mushi, and Monisha Ghosh, "SDR-Based 5G NR C-Band I/Q Monitoring and Surveillance in Urban Area Using a Helikite", in Proc. IEEE ICIT23, Orlando, FL, April 2023.
  3. S. J. Maeng, O. Ozdemir, H. Nandakumar, I Guvenc, M. Sichitiu, R. Dutta, and M. J. Mushi, "Spectrum Activity Monitoring and Analysis for Sub-6 GHz Bands Using a Helikite", in Proc. IEEE Testbeds for Advanced Systems Implementation and Research (TASIR) Workshop, Bengaluru, India, Jan. 2023.

Representative Results

You can access representative results on spectrum occupancy measurements as a function of the helikite altitude here.

  • Pictures in the Experiment: a Helikite Floats On-campus Site during Packapalooza Event
    Screenshot 2023-04-09 at 21 30 30
  • Result figures
    Screenshot 2023-04-09 at 21 30 37
    (Left) Helikite trajectory, (Center) Helikite altitude during the experiment, and (Right) Spectrum monitoring


Potential use cases for this dataset include:

  • Enhancing Spectrum Management
  • Environmental and Geographical Analysis of Spectrum
  • Spectrum Occupancy Modeling at all sub-6 GHz Bands