Benefits of sensor mobility when creating a radio environment map

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Authors
  1. Faint, S.M.
  2. Colman, G.
  3. Willink, T.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
Operating in a heterogeneous radio environment requires knowledge of the frequency occupancy for a given region of interest. To assist spectrum managers in allocating frequencies dynamically, the topography of radio frequency (RF) energy can be detailed in a radio environment map (REM). The generation of the REM may be supported by sensors spread over the region to obtain power measurements. Collecting measurements from many sensors incurs a large network overhead, resulting in lost or delayed measurements which can degrade the quality of the REM. It is shown through simulations that if the sensors are mobile, their movement can be used to improve the accuracy of the REM, reducing the number of sensors and networking overhead required. As the sensors’ speed increases, or the observation window lengthens, the effective area covered by each sensor also increases, further improving the REM accuracy.

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Report Number
DRDC-OTTAWA-TM-2011-189 — Technical Memorandum
Date of publication
01 Dec 2011
Number of Pages
34
DSTKIM No
CA037027
CANDIS No
536673
Format(s):
Electronic Document(PDF)

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