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Exploiting error-control coding and cyclic-prefix in channel estimation for coded OFDM systems

delete2003-08-01
delete25
PRE
AI
G
G.A. Al-Rawi
T
Tareq Y. Al-Naffouri
A
Ahmad Bahai
J
J.M. Cioffi
DOI：10.1109/LCOMM.2003.814712delete
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Abstract

Abstract

En 中文
OFDM systems typically use coding and interleaving across subchannels to exploit frequency diversity on frequency-selective channels. This letter presents a low-complexity iterative algorithm for blind and semi-blind joint channel estimation and soft decoding in coded OFDM systems. The proposed algorithm takes advantage of the channel finite delay-spread constraint and the extra observation offered by the cyclic-prefix. It, converges within a single OFDM symbol and, therefore, has a minimum latency.
Keywords:
adaptive equalization
blind channel estimation
iterative detection
multicarrier transmission

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

No organization information available