TV white spaces exploration for cognitive radio: taxonomy and research issues

Abstract

In order to implement the interweave cognitive radio solutions, the research for finding sparsely utilized spectrum bands has revealed the VHF and UHF television broadcast bands, known as television white spaces (TVWS) as the foremost candidate. The TVWS quantification and throughput analysis conducted via several measurement attempts and field trials uncover various facets of the TVWS spectrum measurement. Consequently, the conclusions obtained may be processed to get a statistical knowledge about spectrum availability in a particular geographic region and hence utilized for spectrum management. This paper explores inherent methodologies used for TVWS assessment and provides a comprehensive overview of the TVWS regulatory norms, results obtained by TVWS measurement campaigns and field trials conducted worldwide. In addition, research issues, implementation challenges and future directions for TVWS measurement procedure are highlighted.

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Singh, A., Naik, K.K. & Kumar, C.R.S. TV white spaces exploration for cognitive radio: taxonomy and research issues. Telecommun Syst (2020). https://doi.org/10.1007/s11235-020-00678-6

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Keywords

  • Average spectrum duty cycle
  • Cognitive radio
  • Digital switchover
  • Path loss model
  • Spectrum occupancy measurement
  • TV white spaces
  • Ultra high frequency
  • Very high frequency