Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Deolinda Fontes Cardoso"'
Autor:
DEOLINDA FONTES CARDOSO
[pt] Este trabalho investiga o impacto da utilização de técnicas para melhorar a qualidade da estimação de canal em sistemas MC CDMA (Multi Carrier Code Division Multiple Access) e MC DS CDMA (Multi Carrier Direct Sequence Code Division Multiple
Autor:
DEOLINDA FONTES CARDOSO
Publikováno v:
Repositório Institucional da PUC_RIOPontifícia Universidade Católica do Rio de JaneiroPUC_RIO.
PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
Este trabalho investiga o impacto da utilização de técnicas para melhorar a qualidade da estimação de canal em sistemas MC CDMA (Multi Carrier Code Division Multiple Access) e MC DS CDMA
Este trabalho investiga o impacto da utilização de técnicas para melhorar a qualidade da estimação de canal em sistemas MC CDMA (Multi Carrier Code Division Multiple Access) e MC DS CDMA
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2b46f1bede45136c49deff627c11306
https://doi.org/10.14209/jcis.2013.3
https://doi.org/10.14209/jcis.2013.3
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45a21fa3eb1a38b942e47c0672e47e2
https://doi.org/10.1109/wons.2009.4801846
https://doi.org/10.1109/wons.2009.4801846
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af424959444600f37e13cfce13901012
https://doi.org/10.1109/iswpc.2009.4800586
https://doi.org/10.1109/iswpc.2009.4800586
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e958d79e2de39ea3d5d7d6ce065d70a
https://doi.org/10.1109/rws.2009.4957375
https://doi.org/10.1109/rws.2009.4957375
Autor:
DEOLINDA FONTES CARDOSO
Publikováno v:
Repositório Institucional da PUC-RIO (Projeto Maxwell)
Pontifícia Universidade Católica do Rio de Janeiro (PUC-RIO)
instacron:PUC_RIO
Pontifícia Universidade Católica do Rio de Janeiro (PUC-RIO)
instacron:PUC_RIO
PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO Este trabalho investiga o impacto da utilização de técnicas para melhorar a qualidade da estimação de canal em sistemas MC CDMA (Multi Carrier Code Division Multiple Access) e MC DS CDMA (Mult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::a207effed1f5ec05b575e4b51eddec8e
https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=13436@1
https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=13436@1
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd2b14c81a2504dad02a920b1ca87988
https://doi.org/10.1109/atnac.2008.4783313
https://doi.org/10.1109/atnac.2008.4783313