2354 search results - page 67 / 471 » Radio number for trees |
PIMRC
2008
IEEE
15 years 4 months ago
2008
IEEE
—Key factors of indoor NLoS radio channels are examined, namely the number of channel taps, the mean delay, the RMS delay spread and the channel gain. We analyze wideband (2-11 G...
SUTC
2008
IEEE
15 years 4 months ago
2008
IEEE
In this paper, two practical considerations of beacon deployment for ultrasound-based indoor localization systems are presented. In an indoor environment, beacons are deployed inc...
CISS
2007
IEEE
15 years 4 months ago
2007
IEEE
— We propose an expectation-maximization (EM) technique for locating multiple transmitters based on power levels observed by a set of arbitrarily-placed receivers. Multiple trans...
ICCCN
2007
IEEE
15 years 4 months ago
2007
IEEE
Abstract— This paper proposes a simple yet efficient localization algorithm for GPS-free sensor nodes in wireless sensor networks (WSN). Our approach is hybrid in the sense that...
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GLOBECOM
2006
IEEE
15 years 3 months ago
2006
IEEE
— Radio Frequency Identification (RFID) systems have provided promising solutions to effective identification of a large number of tagged objects. However, RFID systems suffer ...