An efficient DOA estimation technique for multi-user multi-path signals in TD-SCDMA systems

An efficient method is presented for multi-path DOA estimation in TD-SCDMA systems. With a specific midamble assignment strategy, a DFT-based algorithm is used to obtain multi-user multi-path space-time channel estimates. DOA estimation for each path is further carried out by using the extracted spa...

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Published inMAPE2005 : IEEE 2005 International Symposium on Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications : proceedings : August 8-12, 2005, Beijing, China Vol. 2; pp. 1382 - 1385 Vol. 2
Main Author Li Ping'an
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
Additive noise
Antenna arrays
AWGN
Channel estimation
Delay estimation
Direction of arrival estimation
Equations
Interference suppression
Receiving antennas
Time division synchronous code division multiple access
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ISBN0780391284
9780780391284
DOI10.1109/MAPE.2005.1618181

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Summary:An efficient method is presented for multi-path DOA estimation in TD-SCDMA systems. With a specific midamble assignment strategy, a DFT-based algorithm is used to obtain multi-user multi-path space-time channel estimates. DOA estimation for each path is further carried out by using the extracted spatial signature vector. Aside from the simplicity in computation, the proposed DOA estimation method can effectively resolve multi-paths regardless of the correlation and DOA separations of the multi-paths
ISBN:0780391284
9780780391284
DOI:10.1109/MAPE.2005.1618181