Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Fabian David Backx"'
Publikováno v:
Journal of Communication and Information Systems. 35:1-14
Publikováno v:
Journal of Communication and Information Systems. 28:14-25
This paper addresses pilot-assisted estimation offrequency-selective time-invariant channels in multicarrier Code Division Multiple Access communications systems (MC CDMA and MC DS-CDMA). Performance in terms of normalised mean square error (NMSE) is
Publikováno v:
SAM
In this paper, we specialize a novel stage of dimensionality reduction, based on a joint interpolation and decimation scheme (JIDS), proposed in [1] and [2], for airborne phased-array radars. The JIDS design approach consists of a very elegant and ef
Autor:
FABIAN DAVID BACKX
[pt] O esquema OFDM (Orthogonal Frequency Division Multiplexing) é um esquema de transmissão de sinais por multiplexação em freqüência e sua adoção vem mostrando-se bastante promissora no que diz respeito à transmissão de sinais em canais s
Autor:
FABIAN DAVID BACKX
Publikováno v:
Repositório Institucional da PUC_RIOPontifícia Universidade Católica do Rio de JaneiroPUC_RIO.
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
O esquema OFDM (Orthogonal Frequency Division Multiplexing) é um esquema de transmissão de sinais por multiplexação em freqüência e sua adoção vem mostrando-se bastante prom
O esquema OFDM (Orthogonal Frequency Division Multiplexing) é um esquema de transmissão de sinais por multiplexação em freqüência e sua adoção vem mostrando-se bastante prom
Publikováno v:
2009 Sixth International Conference on Wireless On-Demand Network Systems and Services.
This research investigates a simple procedure to improve the channel frequency response estimate for orthogonal multicarrier CDMA systems. The improvement is achieved by means of a precomputed matrix that projects the original discrete frequency resp
Publikováno v:
2009 4th International Symposium on Wireless Pervasive Computing.
This paper considers two simple procedures to improve the channel frequency response estimate for uplink Zero Padded MC-CDMA systems. The first approach uses a precomputed matrix that projects the original discrete frequency response onto the subspac
Publikováno v:
2009 IEEE Radio and Wireless Symposium.
***In this paper, correlation matching techniques are employed in order to blindly estimate multipath-parameters of r a Zero adeP MC-DS-CDMA (Multi Carrier DSCDMA) system. Using only the spreading code of the user of interest, a technique is proposed
Publikováno v:
2008 Australasian Telecommunication Networks and Applications Conference.
This work investigates the problem of uplink blind channel estimation in zero padded multi carrier direct sequence code division multiple access (MC-DS/CDMA-ZP). Using only the spreading code of the user of interest, our method explores the orthogona