NDLI: Initial DS/SS code synchronization by two-dimensional techniques and MIMO systems

Content Provider	IEEE Xplore Digital Library
Author	Giunta, G. Ner, A.
Copyright Year	2004
Description	Author affiliation: Dept. of Appl. Electron., Univ. of ROMA TRE, Rome, Italy (Giunta, G.; Ner, A.)
Abstract	Serial multi-dwell probability tests, based on noncoherent correlation from a number of data blocks, are usually adopted for the initial code acquisition in the radio access of 3G mobile communications. The test sequentially searches for the most likely codes and their optimum timing shift as reliable candidates for code (and code offset) acquisition. The constant false alarm rate (CFAR) criterion is adopted to determine the threshold value. The paper extends the analysis to the case of smart antennas and MIMO systems, involving 2D spatio-temporal signal processing and two-dwell procedures. In particular, we preliminarily discuss the spatial coverage of customers, assuming an adaptive management of call admission from distinct angular sectors. The main novelty of the presented procedure is twofold: a two-dwell acquisition technique is performed to save the mean acquisition time with respect to one-dwell acquisition techniques; the searching procedure is driven from the estimates of the local signal-to-interference-plus-noise ratio (SINR), reducing again the mean acquisition time. The analytic performance is expressed by using the generalized-Q functions. An application to typical mobile environments is provided. The obtained results evidence the effectiveness of the analyzed spatio-temporal two-dwell procedures.
Starting Page	1119
Ending Page	1123
File Size	325278
Page Count	5
File Format	PDF
ISBN	0780382552
ISSN	15502252
DOI	10.1109/VETECS.2004.1389006
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-17
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Sequential analysis Frequency synchronization Signal processing 3G mobile communication Timing Electronic equipment testing System testing Signal to noise ratio Multiaccess communication
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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