Title :
On the application of DOA estimation techniques to UMTS system
Author :
Re, E. Del ; Pierucci, L. ; Marapodi, S.
Author_Institution :
Dept. of Electron. & Telecommun., Univ. of Florence, Italy
Abstract :
The paper describes the application of multiple signal classification (MUSIC) and its derivative algorithms to the estimation of direction of arrival (DOA) of multipath signals received from multiple users on the uplink of a wideband direct sequence code division multiple access (wideband DS-CDMA) system. Due to the multiple-access interference (MAI) and multipath, a high number of signals impinge on the antenna array and this scenario causes conventional direction-finding algorithms (such as MUSIC) to fail. The proposed approach extends the use of MUSIC and allows to provide unique estimates even when the number of DOAs exceeds the number of antenna array elements.
Keywords :
3G mobile communication; UHF antennas; code division multiple access; direction-of-arrival estimation; microwave antenna arrays; multipath channels; receiving antennas; spread spectrum communication; DOA estimation techniques; MUSIC; UMTS system; antenna array elements; multipath signals; multiple signal classification; multiple users; multiple-access interference; wideband direct sequence code division multiple access; 3G mobile communication; Antenna arrays; Direct-sequence code-division multiple access; Direction of arrival estimation; Directive antennas; Multiaccess communication; Multiple access interference; Multiple signal classification; Navigation; Wideband;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on
Print_ISBN :
0-7803-7627-7
DOI :
10.1109/ISSSTA.2002.1048602
