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Direction-of-Arrival Tracking Scheme for DS/CDMA Systems: Direction Lock Loop

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Authors
Seo, Dongyoun; Lee, Kwang Bok; Kwon, Hyuck M; Lee, Yong-Hwan
Issue Date
2004-01
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
IEEE Trans. Wireless Commun., vol. 3, pp. 191-202, Jan. 2004
Keywords
Array response vectordirection of arrival (DOA)direction lock loop (DiLL)DOA trackingdirect-sequence codedivision multiple access (DS/CDMA)smart antenna
Abstract
In this paper, a new direction-of-arrival (DOA)
tracking algorithm, direction lock loop (DiLL), is proposed for
wireless direct-sequence code-division multiple-access systems. It
has a similar concept to the delay lock loop that is used for timing
synchronization. It may track the DOA of sources by iterations.
Its computational requirements are + O( ) for coherent
DiLL and 2 + O( ) for noncoherent DiLL, where is
the number of antenna elements and is the number of signal
sources, which is less than that of the projection approximation
subspace tracking with deflation algorithm [5]. The DOA tracking
accuracy is demonstrated by analysis and computer simulations.
ISSN
1536-1276
Language
English
URI
http://hdl.handle.net/10371/7106
DOI
https://doi.org/10.1109/TWC.2003.821215
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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