Title
Exploiting error-control coding and cyclic-prefix in channel estimation for coded OFDM systems
Abstract
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.
Year
DOI
Venue
2003
10.1109/LCOMM.2003.814712
Communications Letters, IEEE
Keywords
Field
DocType
OFDM modulation,adaptive equalisers,channel coding,channel estimation,decoding,delays,diversity reception,error correction codes,error statistics,fading channels,iterative methods,modulation coding,OFDM symbol,adaptive equalization,algorithm convergence,blind joint channel estimation,channel estimation,coded OFDM systems,cyclic-prefix,error-control coding,finite delay-spread constraint,interleaving,iterative detection,low-complexity iterative algorithm,modulation intersymbol,multicarrier transmission,semi-blind joint channel estimation,soft decoding,subchannel coding
Diversity scheme,Cyclic prefix,Iterative method,Computer science,Communication channel,Real-time computing,Decoding methods,Blind signal separation,Interleaving,Orthogonal frequency-division multiplexing
Journal
Volume
Issue
ISSN
7
8
1089-7798
Citations 
PageRank 
References 
18
0.89
2
Authors
4
Name
Order
Citations
PageRank
Al-Rawi, G.A.1180.89
Al-Naffouri, T.Y.216112.05
Ahmad Bahai360265.90
John M. Cioffi44076772.00