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 High resolution DOA estimation technique for uplink TDD mode
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/8301

title: High resolution DOA estimation technique for uplink TDD mode
authors: Marques, P.
Gameiro, A.
Fernandes, J.
issue date: 2002
publisher: IEEE
abstract: This paper investigates a maximum likelihood (ML) approach for direction of arrival (DOA) estimation based on the algorithm suggested by the 3GPP for scalar channels in UTRA-TDD mode. The performance of the algorithm is assessed by resorting to simulations in typical UMTS scenarios. The results indicate that the proposed scheme overcomes the limitation of the angular resolution inherent to classical techniques like subspace or beam-forming methods. In particular, it is shown that waves exhibiting an arbitrarily small difference in azimuth and temporal spacing higher than one chip time interval can be easily separated. A threshold operation is included to select only the most significant paths, in terms of energy, of the estimated channel. The results show that a good performance can be achieved from low to high values of Eb/N0.
URI: http://hdl.handle.net/10773/8301
ISBN: 0-85296-749-7
ISSN: 0537-9989
publisher version/DOI: http://dx.doi.org/10.1049/cp:20020429
source: IEEE Third International Conference on 3G Mobile Communication Technologies 2002 (Conf. Publ. No. 489)
appears in collectionsDETI - Comunicações

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