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- W2020126482 abstract "Being a key supporting technology, localization is of significance to the research and implement of other attracting applications in wireless sensor networks. The positioning accuracy and energy consumption are two major indicators of localization performance. In this paper, we are concerned with the problem of optimization for coordinates calculation in localization process, regardless of the specific underlying localization mechanism. In order to improve accuracy and avoid extra energy consumption, we develop three schemes based on least squares and multilateration: Taylor-LS, WLS and CTLS. Moreover, we develop a generalized Cramér–Rao lower bound on the localization errors in multihop scenario to help us theoretically analyze the performance of our localization refinement methods. We evaluate the proposed methods via simulations under various environmental settings. Overall, the simulation results validate the practicality of our proposed localization refinement methods, and show that they outperform multilateration at a certain extent under a wide range of conditions and have no extra communication overhead." @default.
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- W2020126482 date "2009-08-01" @default.
- W2020126482 modified "2023-09-30" @default.
- W2020126482 title "Localization refinement for wireless sensor networks" @default.
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- W2020126482 doi "https://doi.org/10.1016/j.comcom.2009.05.011" @default.
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