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Towards a characterization of white spaces databases errors: an empirical study

Published: 07 September 2014 Publication History

Abstract

Spectrum regulators consider geo-location databases as the most reliable source of spectrum information for White Space Devices (WSDs). Geo-location databases protect TV band incumbents by keeping track of TV transmitters, and their protected service areas based on their location, transmission parameters, and sophisticated propagation models. However, propagation models inaccuracies can cause an overestimation of the protected area of TV transmitters leading to the inefficient usage of white spaces. In this paper, we present a large scale study, spanning an area of around 3000 km^2 over a driving path of around 190 km, showing that one of the most accurate propagation models, the Irregular Terrain Model (IMT), overestimates the signal power by up to 97% of the time. Based on this study, we provide a characterization of spectrum sensory readings that can be used to amend the prediction of propagation models. This characterization allows spectrum sensors to detect the absence of white spaces with a fairly high threshold of -84 dbm, which enables low cost and accurate spectrum sensing. Furthermore, we present the initial design of SPOC, a system that combines spectrum sensing and propagation modeling in order to better detect white spaces.

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  • (2020)Incentive Mechanism for Crowdsourcing-Based Spectrum MeasurementEncyclopedia of Wireless Networks10.1007/978-3-319-78262-1_213(589-595)Online publication date: 22-Aug-2020
  • (2019)Construction and Interpolation of a Multi-frequency Radio Map2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)10.1109/ICREST.2019.8644474(632-637)Online publication date: Jan-2019
  • (2019)Online Incentive Mechanism for Crowdsourced Radio Environment Map ConstructionICC 2019 - 2019 IEEE International Conference on Communications (ICC)10.1109/ICC.2019.8761268(1-6)Online publication date: May-2019
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      cover image ACM Conferences
      WiNTECH '14: Proceedings of the 9th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
      September 2014
      102 pages
      ISBN:9781450330725
      DOI:10.1145/2643230
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 07 September 2014

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      Author Tags

      1. empirical study
      2. spectrum sensing
      3. white spaces

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      WiNTECH '14 Paper Acceptance Rate 10 of 12 submissions, 83%;
      Overall Acceptance Rate 63 of 100 submissions, 63%

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      Cited By

      View all
      • (2020)Incentive Mechanism for Crowdsourcing-Based Spectrum MeasurementEncyclopedia of Wireless Networks10.1007/978-3-319-78262-1_213(589-595)Online publication date: 22-Aug-2020
      • (2019)Construction and Interpolation of a Multi-frequency Radio Map2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)10.1109/ICREST.2019.8644474(632-637)Online publication date: Jan-2019
      • (2019)Online Incentive Mechanism for Crowdsourced Radio Environment Map ConstructionICC 2019 - 2019 IEEE International Conference on Communications (ICC)10.1109/ICC.2019.8761268(1-6)Online publication date: May-2019
      • (2017)Secure crowdsourced radio environment map construction2017 IEEE 25th International Conference on Network Protocols (ICNP)10.1109/ICNP.2017.8117556(1-10)Online publication date: Oct-2017
      • (2017)Local and Low-Cost White Space Detection2017 IEEE 37th International Conference on Distributed Computing Systems (ICDCS)10.1109/ICDCS.2017.292(503-516)Online publication date: Jun-2017
      • (2017)Fine-Grained Incentive Mechanism for Sensing Augmented Spectrum DatabaseGLOBECOM 2017 - 2017 IEEE Global Communications Conference10.1109/GLOCOM.2017.8254447(1-6)Online publication date: 4-Dec-2017
      • (2015)Toward dynamic real-time geo-location databases for TV white spacesIEEE Network: The Magazine of Global Internetworking10.1109/MNET.2015.729330929:5(76-82)Online publication date: 1-Sep-2015
      • (2014)Measurement-Augmented Spectrum Databases for White Space SpectrumProceedings of the 10th ACM International on Conference on emerging Networking Experiments and Technologies10.1145/2674005.2675001(67-74)Online publication date: 2-Dec-2014

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