An Efficient TDOA-Based Localization Algorithm without Synchronization between Base Stations | Zendy

Sangdeok Kim | Zendy; JongWha Chong | Zendy

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An Efficient TDOA-Based Localization Algorithm without Synchronization between Base Stations

Author(s) -

Sangdeok Kim,

JongWha Chong

Publication year - 2015

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1155/2015/832351

Subject(s) - multilateration , base station , computer science , synchronization (alternating current) , algorithm , network packet , base (topology) , real time computing , wideband , time synchronization , telecommunications , channel (broadcasting) , computer network , node (physics) , mathematics , electronic engineering , acoustics , mathematical analysis , physics , engineering

An efficient localization algorithm is proposed by utilizing the time difference of arrival (TDOA) without synchronization between base stations. Generally, a TDOA-based localization algorithm requires synchronization between base stations in order to improve the accuracy of localization. Hence, correlations using wideband signals or wire connections between base stations have been used to synchronize the base stations; however, these approaches result in additional operating costs. Thus, the proposed algorithm does not require synchronization between base stations. The TDOA equations are derived by continuously varying the locations of the source and the location of a base station. The number of packets necessary for localization is also reduced. The localization performance of the proposed algorithm is verified with Monte-Carlo simulations

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