2011
DOI: 10.1109/tsp.2011.2152400
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Linear Least Squares Approach for Accurate Received Signal Strength Based Source Localization

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Cited by 216 publications
(138 citation statements)
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“…Following [9] and [12], a second WLS step which utilizes the relationship between the unknown position x and extra variable R, can increase the estimation performance. Based on x 2 + y 2 = R and under sufficiently small noise conditions such that x ≈ [ θ] 1 and y ≈ [ θ] 2 , we can construct:…”
Section: Improved Versionmentioning
confidence: 99%
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“…Following [9] and [12], a second WLS step which utilizes the relationship between the unknown position x and extra variable R, can increase the estimation performance. Based on x 2 + y 2 = R and under sufficiently small noise conditions such that x ≈ [ θ] 1 and y ≈ [ θ] 2 , we can construct:…”
Section: Improved Versionmentioning
confidence: 99%
“…Maximum likelihood (ML) [4], semi-definite relaxation (SDR) [5], centroid [6] and weighted least squares (WLS) [7,8,9] approaches are the common solutions for source localization using RSS measurements. It has been shown in [4] that the positioning accuracy of the ML methodology attains Cramér-Rao lower bound (CRLB) at sufficiently small noise conditions.…”
Section: Introductionmentioning
confidence: 99%
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“…The vast majority of studies consider geolocation based on a single-mode propagation model. For instance, [11,12] estimate the model parameters a priori to the position estimation; while [16,18,19] assume some or all of the model parameters are unknown and propose to estimate them together with the position. In mixed LOS/NLOS environments, field-trial results motivate us to consider a mode-dependent propagation model.…”
Section: Relation To Prior Work and Conclusionmentioning
confidence: 99%
“…SDR is a promising technology and has been chosen because it is a cost-effective, portable, and readily available [7]. Some of the key localization approaches that have been used in the past include time of arrival (TOA), time difference of arrival (TDOA) and angle of arrival (AOA) [8][9][10][11].…”
Section: Introductionmentioning
confidence: 99%