Low complexity MMSE based channel estimation technique for LTE OFDMA systems
Data(s) |
01/11/2010
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Resumo |
Long term evolution (LTE) is designed for high speed data rate, higher spectral efficiency, and lower latency as well as high-capacity voice support. LTE uses single carrierfrequency division multiple access (SC-FDMA) scheme for the uplink transmission and orthogonal frequency division multiple access (OFDMA) in downlink. The one of the most important challenges for a terminal implementation are channel estimation (CE) and equalization. In this paper, a minimum mean square error (MMSE) based channel estimator is proposed for an OFDMA systems that can avoid the ill-conditioned least square (LS) problem with lower computational complexity. This channel estimation technique uses knowledge of channel properties to estimate the unknown channel transfer function at non-pilot subcarriers.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
LJS Publishing |
Relação |
http://dro.deakin.edu.au/eserv/DU:30032232/kouzani-lowcomplexitymmse-2010.pdf http://sites.google.com/site/ijcsis/ |
Direitos |
2010, The Authors |
Palavras-Chave | #channel estimation #LTE #least-square #OFDMA #SC-FDMA |
Tipo |
Journal Article |