A Simulation Testbed for Adaptive Modulation and Coding in Airborne Telemetry

Abstract

A simulation testbed has been developed that can be used as a tool for the development, implementation, and testing/verification of algorithms for airborne telemetry applications. This testbed utilizes both SOQPSK and OFDM for its modulation waveforms and LDPC for the FEC codes. It also uses several sets of published telemetry channel sounding data as its channel models. Within the context of this simulation framework, we also present an adaptive algorithm that changes a test article s modulation type and FEC code rate based on the telemetry channel quality. This paper shows the details of the simulation framework and the adaptive rules for selecting the near-optimal transmission mode. It also presents an example of an adaptive scheme that has achieved approximately 30% to 340% goodput performance improvement over the baseline schemes in simulation. Other potential uses of this testbed are also discussed.

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Document Details

Document Type
Technical Report
Publication Date
May 29, 2014
Accession Number
ADA620394

Entities

People

  • Brett T. Walkenhorst
  • Enkuang D. Wang
  • Jieying Han

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Airborne
  • Algorithms
  • Channel Models
  • Coding
  • Command And Control
  • Demodulation
  • Demodulators
  • Frequency
  • Frequency Domain
  • Graphical User Interface
  • Modulation
  • Modulators
  • Multiple Access
  • Multiplexing
  • Orthogonal Frequency Division Multiplexing
  • Simulations
  • Test And Evaluation

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Computational Modeling and Simulation
  • Radio communications and signal processing.