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

Author

Ping´an, Li

Author_Institution

Wuhan Univ. of Technol.

Volume

2

fYear

2005

Firstpage

1382

Abstract

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

Keywords

channel estimation; code division multiple access; direction-of-arrival estimation; discrete Fourier transforms; multipath channels; multiuser channels; DFT-based algorithm; TD-SCDMA system; direction-of-arrival; discrete Fourier transform; extracted spatial signature vector; multipath DOA estimation; multiuser space-time channel estimation; time division synchronous code division multiple access; AWGN; Additive noise; Antenna arrays; Channel estimation; Delay estimation; Direction of arrival estimation; Equations; Interference suppression; Receiving antennas; Time division synchronous code division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on

Conference_Location

Beijing

Print_ISBN

0-7803-9128-4

Type

conf

DOI

10.1109/MAPE.2005.1618181

Filename

1618181