Paper Info
Title
Blind direct estimation of PSK symbols for zero padding OFDM in rapid channel variation cases
Abstract
A totally blind ZP-OFDM receiver is derived in this letter. Unlike existing blind receivers that are based on the scheme that channels are estimated first and then equalizers (MMSE or ZF) are adopted to detect information symbols, our scheme is based on the symbol-block-by-symbol-block direct symbol estimation approach. The proposed receiver is also robust in rapid channel variation cases as long as channel responses remain almost constant during one symbol block. Simulation results show that the BER performance of our scheme and linear MMSE (and ZF) equalizers with perfect CSI are indistinguishable in SNR scenarios of interests, despite the fact that our scheme is totally blind.
Year
DOI
Venue
2006
10.1109/LSP.2006.870370
IEEE Signal Process. Lett.
Keywords
Field
DocType
channel state information,blind symbol recovery,bit error rate,zero padding,maximum-likelihood (ml) estimation,csi,blind zp-ofdm receiver,symbol block,ofdm modulation,blind equalisers,orthogonal frequency division multiplexing,rapid channel variation,channels estimation,channel response,receivers,phase shift keying,ber performance,ofdm,information symbol detection,psk symbol,error statistics,channel estimation,linear mmse equalizer,computer aided software engineering,maximum likelihood estimation,maximum likelihood,frequency diversity
Artificial intelligence,Symbols for zero,Padding,Bit error rate,Channel state information,Diversity scheme,Pattern recognition,Communication channel,Algorithm,Speech recognition,Mathematics,Orthogonal frequency-division multiplexing,Phase-shift keying
Journal
Volume
Issue
ISSN
13
5
1070-9908
Citations 
PageRank 
References 
0
0.34
9
Authors
4
Name
Order
Citations
PageRank
He Huang101.01
Xianda Zhang280968.13
Yuhang Wang315916.49
Hongxing Zou413913.17