2026-04-05T13:55:31Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/3120 2021-12-13T05:47:08Z 1582963413512:1596119372420 user-ytu

An Effective Hybrid Time Synchronization Approach for Time Based Wireless Indoor Localization Yuzana Hlaing Nyein Aye Maung Maung Win Zaw <p>Position estimation for wireless indoor applications<br> is a challenging problem due to lack of standard positioning<br> system in indoor environments. The performance of indoor<br> localization is restricted with many factors such as complex<br> structure of the building, various materials inside the building<br> and lack of availability and accessibility of GPS. Moreover,<br> various localization techniques and applied wireless<br> technologies can also affect the localization capability. Recently,<br> time based wireless indoor localization is a popular trend.<br> Having precise time synchronization is a vital concept for<br> getting the accurate target localization. In this paper, an<br> effective hybrid time synchronization approach is proposed for<br> time based wireless indoor localization which can increase the<br> time synchronization accuracy and hence to improve the<br> localization performance. This new approach is based on<br> Reference Broadcast Synchronization (RBS) and Pairwise<br> Broadcast Synchronization (PBS) protocols, in which the<br> number of timing messages is reduced compared with some<br> existing synchronization protocols. As well, synchronization<br> accuracy is improved as two way message exchange method is<br> applied for time synchronization among all nodes. In addition,<br> transmission delay is considered by using Gaussian random<br> variables and probability density function to improve the<br> accuracy performance. The proposed model is simulated with<br> python programming language to show the robustness and<br> accuracy of this system.</p> 2018-11-26 http://hdl.handle.net/20.500.12678/0000003120 https://meral.edu.mm/records/3120