Improved estimation of TV white spaces in India using terrain data

Rakesh Gorrepati, Abhignya Eturu, Sachin Chaudhari, Jan Oksanen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

Cognitive radio offers a novel solution to overcome the problem of spectrum underutilization by providing spectral access to secondary users. The television (TV) bands are of particular interest for secondary usage due to their high penetration power and greater coverage. These licensed bands are occupied only in few regions while in most of the other regions they are unoccupied and are termed as TV white space (TVWS). The estimation of TVWS has mostly been done by using the statistical and empirical propagation models. In this paper, terrain data is incorporated into the estimation of TVWS and shown to improve the quantitative estimation of TVWS. Using the relevant transmitter information and terrain data in the Indian state of Telangana, the efficacy of the proposed approach is demonstrated. The performance of the proposed approach is compared to that of widely used Hata propagation model. It is shown that the accuracy in TV coverage estimation increases on an average by 45% while incorporating terrain data as compared to using only empirical propagation model. As area outside the TV coverage is TVWS, the increased accuracy in the estimation of TV coverage directly translates to improved accuracy in the estimation of TVWS, which in turn translates into more efficient use of spectrum and better interference management.

Original languageEnglish
Title of host publication2017 23rd National Conference on Communications, NCC 2017
PublisherIEEE
ISBN (Electronic)9781509053568
DOIs
Publication statusPublished - 19 Oct 2017
MoE publication typeA4 Article in a conference publication
EventNational Conference on Communications - Chennai, India
Duration: 2 Mar 20174 Mar 2017
Conference number: 23

Publication series

NameNational Conference on Communications NCC

Conference

ConferenceNational Conference on Communications
Abbreviated titleNCC
CountryIndia
CityChennai
Period02/03/201704/03/2017

Keywords

  • Cognitive radio
  • Propagation models
  • Signal estimation
  • Terrain model
  • White spaces

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