Opportunistic Access in Frequency Hopping Cognitive Radio Networks

Abstract

Researchers in the area of cognitive radio often investigate the utility of dynamic spectrum access as a means to make more e cient use of the radio frequency spectrum. Many studies have been conducted to nd ways in which a secondary user can occupy spectrum licensed to a primary user in a manner which does not disrupt the primary user's performance. This research investigates the use of opportunistic access in a frequency hopping radio to mitigate the interference caused by other transmitters in a contentious environment such as the unlicensed 2.4 GHz region. Additionally, this work demonstrates how dynamic spectrum access techniques can be used not only to prevent interfering with other users but also improve the robustness of a communication system.

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Document Details

Document Type
Technical Report
Publication Date
Mar 27, 2014
Accession Number
ADA598931

Entities

People

  • Ethan S. Hennessey

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Cognitive Radio
  • Communication Systems
  • Detectors
  • Field Programmable Gate Arrays
  • Frequency Agility
  • Frequency Bands
  • Frequency Diversity
  • Frequency Shift
  • Governments
  • Information Operations
  • Modulation
  • Modulators
  • Multiple Access
  • Orthogonal Frequency Division Multiplexing
  • Software Defined Radio
  • United States Government

Fields of Study

  • Computer science

Readers

  • Distributed Systems and Data Platform Development
  • Radio communications and signal processing.