Title :
DOA Algorithm for CDMA System
Author :
Liu, Gaoming ; Hu, Junjie
Author_Institution :
China Nat. Digital Switching Syst. Eng., Zhengzhou
Abstract :
In this paper, an iterative high-resolution DOA algorithm is proposed for DOA estimation for CDMA systems. The algorithm iteratively removes detected signals from the received data and searches the residue spatial spectrum for further signals. It does not require any computationally expensive eigen decomposition or spatial smoothing in coherent multipath scenarios. Results are presented illustrating high-resolution at significantly lower SNR levels than those obtained by classical DOA algorithms such as MUSIC and MVM.
Keywords :
code division multiple access; direction-of-arrival estimation; iterative methods; signal detection; MUSIC; MVM; code division multiple access; direction-of-arrival estimation; eigen decomposition; residue spatial spectrum; signal detection; spatial smoothing; Antenna arrays; Array signal processing; Covariance matrix; Direction of arrival estimation; Iterative algorithms; Multiaccess communication; Multiple signal classification; Signal resolution; Switching systems; Systems engineering and theory;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.504