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3.5 GHz Environmental Sensing Capability Detection Thresholds and Deployment.

Thao T Nguyen1, Michael R Souryal1, Anirudha Sahoo1

  • 1Communications Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899 USA.

IEEE Transactions on Cognitive Communications and Networking
|January 6, 2018
PubMed
Summary
This summary is machine-generated.

Environmental sensing capability (ESC) networks ensure spectrum sharing in the 3.5 GHz band. This study optimizes ESC sensor placement and detection thresholds to protect incumbent shipborne radar systems from interference.

Keywords:
3.5 GHzaggregate interferenceradarsensingsensor placementspectrum sharing

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Area of Science:

  • Wireless communication
  • Electromagnetic compatibility
  • Radar systems

Background:

  • Spectrum sharing in the 3.5 GHz band requires an environmental sensing capability (ESC) to detect incumbent shipborne radar.
  • The sensitivity of ESC sensors is affected by aggregate interference from commercial systems.
  • A comprehensive study on aggregate interference in realistic scenarios and its impact on radar detection is lacking.

Purpose of the Study:

  • To develop systematic methods for determining ESC sensor placement and detection thresholds.
  • To ensure adequate protection for incumbent shipborne radar systems from harmful interference.
  • To analyze the impact of aggregate interference on radar signal detection requirements.

Main Methods:

  • Utilized terrain-based propagation models and a population-based deployment model.
  • Formulated sensor placement as a set cover problem, applying a greedy algorithm for practical solutions.
  • Determined offshore protection trigger distances and related them to coastline sensor detection levels.

Main Results:

  • Identified optimal offshore distances for triggering protective measures.
  • Demonstrated that sensor placement is an NP-complete set cover problem with efficient greedy algorithm solutions.
  • Found that required detection thresholds can be up to 22 dB lower than current industry standards.

Conclusions:

  • The presented methodology provides systematic approaches for ESC sensor placement and detection threshold determination.
  • Results offer practical solutions for optimizing ESC deployment to protect shipborne radar systems.
  • The findings are valuable for ESC operators and regulators in planning, deployment, and performance testing.