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Combined CDMA and Matrix Pencil Direction of Arrival Estimation

Summary: Combined CDMA and Matrix Pencil Direction of
Arrival Estimation
C. K. E. Lau, R. S. Adve, University of Toronto, 10 King's College Road, Toronto, ON M5S 3G4
T. K. Sarkar, Syracuse University, 121 Link Hall, Syracuse, NY13244
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 Matrix Pencil to accurately estimate the DOA of the sig-
nal 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 al-
gorithm which takes twice the execution time has a significantly
higher MSE.
Index Terms--CDMA, SDMA, Matrix Pencil, DOA, AOA
High resolution DOA estimation algorithm havemany impor-
tant applications in wireless communications, including E911
and spatial beamforming. The class of noise subspace algo-
rithms, such as MUSIC, are some of the most popular algo-
rithms proposed for DOA estimation [1]. These algorithms sep-


Source: Adve, Raviraj - Department of Electrical and Computer Engineering, University of Toronto
Sarkar, Tapan K. - Department of Electrical Engineering and Computer Science, Syracuse University


Collections: Engineering