Two-Dimensional Signal Localization Algorithm for Spectrum Sensing

• VARTIAINEN Johanna

  Centre for Wireless Communications (CWC), University of Oulu

• LEHTOMÄKI Janne

  Centre for Wireless Communications (CWC), University of Oulu

• SAARNISAARI Harri

  Centre for Wireless Communications (CWC), University of Oulu

• JUNTTI Markku

  Centre for Wireless Communications (CWC), University of Oulu

• UMEBAYASHI Kenta

  Tokyo University of Agriculture and Technology (TUAT)

抄録

The localization algorithm based on the double-thresholding (LAD) method was originally proposed for detecting and localizing narrowband (NB) signals with respect to the search bandwidth. Its weakness is that the localized signal is often split into several parts, especially when the signal-to-noise ratio (SNR) is low. This may lead to the illusion of unoccupied frequencies in the middle of the signals. In this paper, an extension of the LAD method, namely the two-dimensional LAD (2-D LAD), is proposed to solve that problem. In addition to offering low computational complexity, the proposed method is able to operate at lower SNR values than the original 1-D LAD method.

収録刊行物

• IEICE Transactions on Communications

  IEICE Transactions on Communications E93-B (11), 3129-3136, 2010

  一般社団法人 電子情報通信学会

キーワード

• narrowband signals
• signal sensing

詳細情報

• CRID: 1390282679351216000
• NII論文ID: 10027981545
• NII書誌ID: AA10826261
• DOI: 10.1587/transcom.e93.b.3129
• ISSN: 17451345
• ISSN: 09168516
• Web Site: http://www.jstage.jst.go.jp/article/transcom/E93.B/11/E93.B_11_3129/_pdf
• 本文言語コード: en
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