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http://dx.doi.org/10.14372/IEMEK.2013.8.1.051

A Study of Selective Indoor Positioning between Enhanced Time Difference of Arrival and Pattern Matching using Received Signal Strength Indicator  

Hur, Soo-Jung (Yeungnam University)
Kim, Jea-Hyun (ESM Lab.)
Park, Yongwan (Yeungnam University)
Publication Information
IEMEK Journal of Embedded Systems and Applications / v.8, no.1, 2013 , pp. 51-59 More about this Journal
Abstract
This paper researches location estimating method in CDMA system. Previously proposed positioning algorithms are difficult to estimate accurate position in indoor environments, and possible to limited position. This paper proposes enhanced algorithm using received PN pilot signals from base stations to enhance previous algorithms. For estimating position, we set the threshold value and use over the threshold value in received signals. After selecting signals, we estimate position using TDOA algorithm. And the cases which TDOA algorithm cannot use to estimate position, we use Pattern Matching algorithm. The proposed method system showed the improved performance in estimating parameters and locating positions by computer simulations.
Keywords
Position; TDoA; Pattern Matching; CDMA; Indoor;
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