Title :
Combined CDMA and matrix pencil direction of arrival estimation
Author :
Lau, C.K.E. ; Adve, R.S. ; Sarkar, T.K.
Author_Institution :
Toronto Univ., Ont., Canada
Abstract :
This paper extends the low complexity, matrix pencil direction of arrival (DOA) estimation algorithm to the CDMA case. The CDMA processing gain is used to suppress interfering signals, allowing the matrix pencil to accurately estimate the DOA of the signal of interest. It is shown here that this CDMA/MP algorithm is able to estimate an angle of arrival (AOA) with a low mean square error using only a single snapshot. The popular Root-MUSIC algorithm which takes twice the execution time has a significantly higher MSE.
Keywords :
code division multiple access; direction-of-arrival estimation; linear antenna arrays; matrix algebra; multiuser channels; CDMA processing gain; CDMA/MP algorithm; Root-MUSIC algorithm; angle of arrival estimation; direction of arrival estimation; interfering signals suppression; linear antenna array; low complexity algorithm; low mean square error; matrix pencil DOA estimation algorithm; Array signal processing; Covariance matrix; Direction of arrival estimation; Multiaccess communication; Multiple signal classification; Polynomials; Radar signal processing; Receiving antennas; Signal processing; Signal processing algorithms;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040393
