Wireless Communications and Mobile Computing / 2017 / Article / Fig 8

Review Article

Evolution of Positioning Techniques in Cellular Networks, from 2G to 4G

Figure 8

(a) EOTD positioning scenario, with four single-cell geographically dispersed BTSs and LMU, all placed at known coordinates. Note that , = 1, 2, 3, and 4, indicate the distance between and the MS and that , = 1, 2, 3, and 4, indicate the distance between and the LMU. (b) Timeline of the EOTD positioning scenario, assuming LOS between all elements.
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