An Efficient AOA Estimation Scheme Based on Cyclic Pilot Symbols for Positioning of Mobile Objects in Indoor Environments

Sekchin CHANG  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.3   pp.943-946
Publication Date: 2008/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.3.943
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
AOA,  estimation,  cyclic pilot symbols,  

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The conventional AOA estimation schemes assume multiple antennas, which usually causes high-cost estimation systems. Moreover, the schemes are very vulnerable to multi-path interferences. In this letter, a novel scheme is proposed for the efficient AOA estimation. The scheme is based on cyclic pilot symbols, which guarantees the use of a single antenna and the robustness over multi-path interferences.