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Azimuth Variable-Path Loss Fitting with Received Signal Power Data for White Space Boundary Estimation

Kenshi HORIHATA, Issei KANNO, Akio HASEGAWA, Toshiyuki MAEYAMA, Yoshio TAKEUCHI

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Summary :

This paper shows accuracy of using azimuth-variable path-loss fitting in white-space (WS) boundary-estimation. We perform experiments to evaluate this method, and demonstrate that the required number of sensors can be significantly reduced. We have proposed a WS boundary-estimation framework that utilizes sensors to not only obtain spectrum sensing data, but also to estimate the boundaries of the incumbent radio system (IRS) coverage. The framework utilizes the transmitter position information and pathloss fitting. The pathloss fitting describes the IRS coverage by approximating the well-known pathloss prediction formula from the received signal power data, which is measured using sensors, and sensor-transmitter separation distances. To enhance its accuracy, we have further proposed a pathloss-fitting method that employs azimuth variables to reflect the azimuth dependency of the IRS coverage, including the antenna directivity of the transmitter and propagation characteristics.

Publication
IEICE TRANSACTIONS on Communications Vol.E99-B No.1 pp.87-94
Publication Date
2016/01/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.2015ISP0014
Type of Manuscript
Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)
Category
Wireless Communication Technologies

Authors

Kenshi HORIHATA
  Advanced Telecommunications Research Institute International (ATR)
Issei KANNO
  Advanced Telecommunications Research Institute International (ATR)
Akio HASEGAWA
  Advanced Telecommunications Research Institute International (ATR)
Toshiyuki MAEYAMA
  Advanced Telecommunications Research Institute International (ATR),Takushoku University
Yoshio TAKEUCHI
  Advanced Telecommunications Research Institute International (ATR)

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